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#ifndef FLOW3_H
#define FLOW3_H
#include <algorithm>
//STIM include
#include <stim/parser/arguments.h>
#include <stim/visualization/gl_network.h>
#include <stim/visualization/colormap.h>
#include <stim/math/matrix.h>
#include <stim/visualization/gl_aaboundingbox.h>
#include <stim/ui/progressbar.h>
#include <stim/grids/image_stack.h>
#ifdef __CUDACC__
#include <cublas_v2.h>
#include <stim/cuda/cudatools/error.h>
#endif
namespace stim {
template <typename A, typename B, typename C>
struct triple {
A first;
B second;
C third;
};
template <typename T>
struct bridge {
std::vector<unsigned> v; // vertices' indices
std::vector<typename stim::vec3<T> > V; // vertices' coordinates
T l; // length
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T r; // radius
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T deltaP; // pressure drop
T Q; // volume flow rate
};
template <typename T>
struct sphere {
stim::vec3<T> c; // center of sphere
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T r; // radius
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};
template <typename T>
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struct cone { // radius changes gradually
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stim::vec3<T> c1; // center of geometry start hat
stim::vec3<T> c2; // center of geometry end hat
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T r1; // radius at start hat
T r2; // radius at end hat
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};
template <typename T>
struct cuboid {
stim::vec3<T> c;
T l; // length
T w; // width
T h; // height
};
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template <typename T>
struct circuit {
std::vector<typename std::pair<unsigned, unsigned> > v; // end vertex index
std::vector<T> r; // branch resistence
};
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/// indicator function
#ifdef __CUDACC__
// for sphere
template <typename T>
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__global__ void inside_sphere(const stim::sphere<T> *V, size_t num, T Z,size_t *R, T *S, unsigned char *ptr, int x, int y, int z, T std = 1.0f) {
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unsigned ix = blockDim.x * blockIdx.x + threadIdx.x;
unsigned iy = blockDim.y * blockIdx.y + threadIdx.y;
if (ix >= R[1] || iy >= R[2]) return; // avoid seg-fault
// find world_pixel coordinates
stim::vec3<T> world_pixel;
world_pixel[0] = (T)ix * S[1] - x; // translate origin to center of the network
world_pixel[1] = (T)iy * S[2] - y;
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world_pixel[2] = ((T)z - Z / 2.0f) * S[3]; // ???center of box minus half width
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float distance = FLT_MAX;
float tmp_distance;
unsigned idx;
for (unsigned i = 0; i < num; i++) {
tmp_distance = (V[i].c - world_pixel).len();
if (tmp_distance <= distance) {
distance = tmp_distance;
idx = i;
}
}
if (distance <= V[idx].r)
ptr[(R[2] - 1 - iy) * R[0] * R[1] + ix * R[0]] = 255;
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else {
T g = gaussianFunction(std::pow(distance - V[idx].r, 2), std);
if(g > 0.1f)
ptr[(R[2] - 1 - iy) * R[0] * R[1] + ix * R[0]] = 255;
}
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}
// for cone
template <typename T>
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__global__ void inside_cone(const stim::cone<T> *E, size_t num, T Z, size_t *R, T *S, unsigned char *ptr, int x, int y, int z, T std = 1.0f) {
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unsigned ix = blockDim.x * blockIdx.x + threadIdx.x;
unsigned iy = blockDim.y * blockIdx.y + threadIdx.y;
if (ix >= R[1] || iy >= R[2]) return; // avoid segfault
stim::vec3<T> world_pixel;
world_pixel[0] = (T)ix * S[1] - x;
world_pixel[1] = (T)iy * S[2] - y;
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world_pixel[2] = ((T)z - Z / 2.0f) * S[3];
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float distance = FLT_MAX;
float tmp_distance;
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float rr; // radius at the surface where projection meets
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for (unsigned i = 0; i < num; i++) { // find the nearest cylinder
tmp_distance = ((world_pixel - E[i].c1).cross(world_pixel - E[i].c2)).len() / (E[i].c2 - E[i].c1).len();
if (tmp_distance <= distance) {
// we only focus on point to line segment
// check to see whether projection is lying outside the line segment
float a = (world_pixel - E[i].c1).dot((E[i].c2 - E[i].c1).norm());
float b = (world_pixel - E[i].c2).dot((E[i].c1 - E[i].c2).norm());
float length = (E[i].c1 - E[i].c2).len();
if (a <= length && b <= length) { // projection lying inside the line segment
distance = tmp_distance;
rr = E[i].r1 + (E[i].r2 - E[i].r1) * a / (length); // linear change
}
}
}
if (distance <= rr)
ptr[(R[2] - 1 - iy) * R[0] * R[1] + ix * R[0]] = 255;
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else {
T g = gaussianFunction(std::pow(distance - rr, 2), std);
if (g > 0.1f)
ptr[(R[2] - 1 - iy) * R[0] * R[1] + ix * R[0]] = 255;
}
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}
// for source bus
template <typename T>
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__global__ void inside_cuboid(const stim::cuboid<T> *B, size_t num, T Z, size_t *R, T *S, unsigned char *ptr, int x, int y, int z) {
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unsigned ix = blockDim.x * blockIdx.x + threadIdx.x;
unsigned iy = blockDim.y * blockIdx.y + threadIdx.y;
if (ix >= R[1] || iy >= R[2]) return; // avoid segfault
stim::vec3<T> world_pixel;
world_pixel[0] = (T)ix * S[1] - x;
world_pixel[1] = (T)iy * S[2] - y;
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world_pixel[2] = ((T)z - Z / 2.0f) * S[3];
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for (unsigned i = 0; i < num; i++) {
bool left_outside = false; // flag indicates point is outside the left bound
bool right_outside = false;
stim::vec3<T> tmp = B[i].c;
stim::vec3<T> L = stim::vec3<T>(tmp[0] - B[i].l / 2.0f, tmp[1] - B[i].h / 2.0f, tmp[2] - B[i].w / 2.0f);
stim::vec3<T> U = stim::vec3<T>(tmp[0] + B[i].l / 2.0f, tmp[1] + B[i].h / 2.0f, tmp[2] + B[i].w / 2.0f);
for (unsigned d = 0; d < 3; d++) {
if (world_pixel[d] < L[d]) // if the point is less than the minimum bound
left_outside = true;
if (world_pixel[d] > U[d]) // if the point is greater than the maximum bound
right_outside = true;
}
if (!left_outside && !right_outside)
ptr[(R[2] - 1 - iy) * R[0] * R[1] + ix * R[0]] = 255;
}
}
#endif
template <typename T>
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class flow : public stim::gl_network<T> {
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private:
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unsigned num_edge;
unsigned num_vertex;
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GLuint dlist; // display list for inlets/outlets connections
enum direction { UP, LEFT, DOWN, RIGHT };
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// calculate the cofactor of elemen[row][col]
void get_minor(T** src, T** dest, int row, int col, int order) {
// index of element to be copied
int rowCount = 0;
int colCount = 0;
for (int i = 0; i < order; i++) {
if (i != row) {
colCount = 0;
for (int j = 0; j < order; j++) {
// when j is not the element
if (j != col) {
dest[rowCount][colCount] = src[i][j];
colCount++;
}
}
rowCount++;
}
}
}
// calculate the det()
T determinant(T** mat, int order) {
// degenate case when n = 1
if (order == 1)
return mat[0][0];
T det = 0.0; // determinant value
// allocate the cofactor matrix
T** minor = (T**)malloc((order - 1) * sizeof(T*));
for (int i = 0; i < order - 1; i++)
minor[i] = (T*)malloc((order - 1) * sizeof(T));
for (int i = 0; i < order; i++) {
// get minor of element(0, i)
get_minor(mat, minor, 0, i, order);
// recursion
det += (i % 2 == 1 ? -1.0 : 1.0) * mat[0][i] * determinant(minor, order - 1);
}
// release memory
for (int i = 0; i < order - 1; i++)
free(minor[i]);
free(minor);
return det;
}
protected:
using stim::network<T>::E;
using stim::network<T>::V;
using stim::network<T>::get_start_vertex;
using stim::network<T>::get_end_vertex;
using stim::network<T>::get_r;
using stim::network<T>::get_average_r;
using stim::network<T>::get_l;
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T** C; // Conductance
std::vector<typename stim::triple<unsigned, unsigned, float> > Q; // volume flow rate
std::vector<T> QQ; // Q' vector
std::vector<T> pressure; // final pressure
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std::vector<typename std::vector<typename stim::vec3<T> > > in_backup; // inlet connection back up
std::vector<typename std::vector<typename stim::vec3<T> > > out_backup;
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std::string units; // length units
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bool set = false; // flag indicates the pressure has been set
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std::vector<T> P; // initial pressure
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std::vector<T> v; // average velocity along each edge
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std::vector<typename stim::vec3<T> > main_feeder; // inlet/outlet main feeder
std::vector<unsigned> pendant_vertex;
std::vector<typename stim::triple<unsigned, unsigned, T> > input; // first one store which vertex, second one stores which edge, third one stores in/out volume flow rate of that vertex
std::vector<typename stim::triple<unsigned, unsigned, T> > output;
std::vector<typename stim::bridge<T> > inlet; // input bridge
std::vector<typename stim::bridge<T> > outlet; // output bridge
std::vector<typename stim::sphere<T> > A; // sphere model for making image stack
std::vector<typename stim::cone<T> > B; // cone(cylinder) model for making image stack
std::vector<typename stim::cuboid<T> > CU; // cuboid model for making image stack
stim::gl_aaboundingbox<T> bb; // bounding box
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std::vector<bool> inlet_feasibility; // list of flags indicate whether one inlet connection is feasible
std::vector<bool> outlet_feasibility;
std::vector<typename std::pair<stim::vec3<T>, stim::vec3<T> > > inbb; // inlet connection bounding box
std::vector<typename std::pair<stim::vec3<T>, stim::vec3<T> > > outbb; // outlet connection bounding box
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T Ps; // source and end pressure
T Pe;
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flow() {} // default constructor
~flow() {
for (unsigned i = 0; i < num_vertex; i++)
delete[] C[i];
delete[] C;
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} // default destructor
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void init(unsigned n_e, unsigned n_v) {
num_edge = n_e;
num_vertex = n_v;
C = new T*[n_v]();
for (unsigned i = 0; i < n_v; i++) {
C[i] = new T[n_v]();
}
QQ.resize(n_v);
P.resize(n_v);
pressure.resize(n_v);
Q.resize(n_e);
v.resize(n_e);
}
void clear() {
for (unsigned i = 0; i < num_vertex; i++) {
QQ[i] = 0;
pressure[i] = 0;
for (unsigned j = 0; j < num_vertex; j++) {
C[i][j] = 0;
}
}
main_feeder.clear();
input.clear();
output.clear();
inlet.clear();
outlet.clear();
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if (glIsList(dlist)) {
glDeleteLists(dlist, 1); // delete display list for modify
glDeleteLists(dlist + 1, 1);
}
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}
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void set_units(std::string u) {
units = u;
}
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// copy radius from cylinder to flow
void set_radius(unsigned i, T radius) {
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for (unsigned j = 0; j < num_edge; j++) {
if (E[j].v[0] == i)
E[j].cylinder<T>::set_r(0, radius);
else if (E[j].v[1] == i)
E[j].cylinder<T>::set_r(E[j].size() - 1, radius);
}
}
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// get the radius of vertex i
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T get_radius(unsigned i) {
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unsigned tmp_e; // edge index
unsigned tmp_v; // vertex index in that edge
for (unsigned j = 0; j < num_edge; j++) {
if (E[j].v[0] == i) {
tmp_e = j;
tmp_v = 0;
}
else if (E[j].v[1] == i) {
tmp_e = j;
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tmp_v = (unsigned)(E[j].size() - 1);
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}
}
return E[tmp_e].r(tmp_v);
}
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// get the radius of point j on edge i
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T get_radius(unsigned i, unsigned j) {
return E[i].r(j);
}
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// back up vertices
std::vector<stim::vec3<T> > back_vertex() {
std::vector<stim::vec3<T> > result;
for (unsigned i = 0; i < num_vertex; i++)
result.push_back(stim::vec3<T>(V[i][0], V[i][1], V[i][2]));
return result;
}
// get pendant vertices
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std::vector<unsigned> get_pendant_vertex() {
std::vector<unsigned> result;
int count = 0;
for (unsigned i = 0; i < V.size(); i++) { // for every vertex
for (unsigned j = 0; j < E.size(); j++) { // for every edge
if (i == E[j].v[0] || i == E[j].v[1]) // check whether current vertex terminates one edge
count++;
}
if (count == 1) // is pendant vertex
result.push_back(i);
count = 0; // reset count
}
return result;
}
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// get the velocity of pendant vertex i
T get_velocity(unsigned i) {
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unsigned tmp_e; // edge index
for (unsigned j = 0; j < num_edge; j++) {
if (E[j].v[0] == i) {
tmp_e = j;
break;
}
else if (E[j].v[1] == i) {
tmp_e = j;
break;
}
}
return v[tmp_e];
}
// set pressure at specifi vertex
void set_pressure(unsigned i, T value) {
P[i] = value;
}
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// extrct the largest connected component
void extract_lcc() {
}
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// solve the linear system to get stable flow state
void solve_flow(T viscosity) {
// clear up last time simulation
clear();
// get the pendant vertex indices
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pendant_vertex = get_pendant_vertex();
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// get bounding box
bb = (*this).boundingbox();
// set the conductance matrix of flow object
unsigned start_vertex = 0;
unsigned end_vertex = 0;
for (unsigned i = 0; i < num_edge; i++) {
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start_vertex = (unsigned)get_start_vertex(i); // get the start vertex index of current edge
end_vertex = (unsigned)get_end_vertex(i); // get the end vertex index of current edge
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C[start_vertex][end_vertex] = -((T)stim::PI * std::pow(get_average_r(i), 4)) / (8 * u * get_l(i));
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C[end_vertex][start_vertex] = C[start_vertex][end_vertex];
}
// set the diagonal to the negative sum of row element
float sum = 0.0;
for (unsigned i = 0; i < num_vertex; i++) {
for (unsigned j = 0; j < num_vertex; j++) {
sum += C[i][j];
}
C[i][i] = -sum;
sum = 0.0;
}
// get the Q' vector QQ
// matrix manipulation to zero out the conductance matrix as defined by the boundary values that were enterd
for (unsigned i = 0; i < num_vertex; i++) {
if (P[i] != 0) { // for every dangle vertex
for (unsigned j = 0; j < num_vertex; j++) {
if (j == i) {
QQ[i] = C[i][i] * P[i];
}
else {
C[i][j] = 0;
QQ[j] = QQ[j] - C[j][i] * P[i];
C[j][i] = 0;
}
}
}
}
// get the inverse of conductance matrix
stim::matrix<float> _C(num_vertex, num_vertex);
inversion(C, num_vertex, _C.data());
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// get the pressure in the network
for (unsigned i = 0; i < num_vertex; i++) {
for (unsigned j = 0; j < num_vertex; j++) {
pressure[i] += _C(i, j) * QQ[j];
}
}
// get the flow state from known pressure
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T start_pressure = 0.0;
T end_pressure = 0.0;
T deltaP = 0.0;
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for (unsigned i = 0; i < num_edge; i++) {
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start_vertex = (unsigned)get_start_vertex(i);
end_vertex = (unsigned)get_end_vertex(i);
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start_pressure = pressure[start_vertex]; // get the start vertex pressure of current edge
end_pressure = pressure[end_vertex]; // get the end vertex pressure of current edge
deltaP = start_pressure - end_pressure; // deltaP = Pa - Pb
Q[i].first = start_vertex;
Q[i].second = end_vertex;
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Q[i].third = ((T)stim::PI * std::pow(get_average_r(i), 4) * deltaP) / (8 * u * get_l(i));
v[i] = Q[i].third / ((T)stim::PI * std::pow(get_average_r(i), 2));
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}
}
// get the brewer color map based on velocity
void get_color_map(T& max_v, T& min_v, std::vector<unsigned char>& color, std::vector<unsigned> pendant_vertex) {
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size_t num_edge = Q.size();
size_t num_vertex = QQ.size();
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// find the absolute maximum velocity and minimum velocity
std::vector<float> abs_V(num_edge);
for (unsigned i = 0; i < num_edge; i++) {
abs_V[i] = std::fabsf(v[i]);
}
max_v = *std::max_element(abs_V.begin(), abs_V.end());
min_v = *std::min_element(abs_V.begin(), abs_V.end());
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// get the color map based on velocity range along the network
color.clear();
if (pendant_vertex.size() == 2 && num_edge - num_vertex + 1 <= 0) // only one inlet and one outlet
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color.resize(num_edge * 3, (unsigned char)128);
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else {
color.resize(num_edge * 3);
stim::cpu2cpu<float>(&abs_V[0], &color[0], num_edge, min_v, max_v, stim::cmBrewer);
}
}
// print flow
void print_flow() {
// show the pressure information in console box
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std::cout << "PRESSURE(g/" << units << "/s^2):" << std::endl;
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for (unsigned i = 0; i < num_vertex; i++) {
std::cout << "[" << i << "] " << pressure[i] << std::endl;
}
// show the flow rate information in console box
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std::cout << "VOLUME FLOW RATE(" << units << "^3/s):" << std::endl;
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for (unsigned i = 0; i < num_edge; i++) {
std::cout << "(" << Q[i].first << "," << Q[i].second << ")" << Q[i].third << std::endl;
}
}
/// helper function
// find hilbert curve order
// @param: current direct length between two vertices
// @param: desire length
void find_hilbert_order(T l, T d, int &order) {
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bool flag = false;
int o = 1;
T tmp; // temp of length
while (!flag) {
// convert from cartesian length to hilbert length
// l -> l * (4 ^ order - 1)/(2 ^ order - 1)
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tmp = (T)(l * (std::pow(4, o) - 1) / (std::pow(2, o) - 1));
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if (tmp >= d)
flag = true;
else
o++;
}
order = o;
}
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// move hilbert curves
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void move(unsigned i, T *c, direction dir, T dl, int feeder, bool invert) {
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int cof = (invert) ? -1 : 1;
switch (dir) {
case UP:
c[1] += dl;
break;
case LEFT:
c[0] -= cof * dl;
break;
case DOWN:
c[1] -= dl;
break;
case RIGHT:
c[0] += cof * dl;
break;
}
stim::vec3<T> tmp;
for (unsigned i = 0; i < 3; i++)
tmp[i] = c[i];
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if (feeder == 1) // inlet main feeder
inlet[i].V.push_back(tmp);
else if (feeder == 0) // outlet main feeder
outlet[i].V.push_back(tmp);
}
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void hilbert_curve(unsigned i, T *c, int order, T dl, int feeder, bool invert, direction dir = DOWN) {
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if (order == 1) {
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switch (dir) {
case UP:
move(i, c, DOWN, dl, feeder, invert);
move(i, c, RIGHT, dl, feeder, invert);
move(i, c, UP, dl, feeder, invert);
break;
case LEFT:
move(i, c, RIGHT, dl, feeder, invert);
move(i, c, DOWN, dl, feeder, invert);
move(i, c, LEFT, dl, feeder, invert);
break;
case DOWN:
move(i, c, UP, dl, feeder, invert);
move(i, c, LEFT, dl, feeder, invert);
move(i, c, DOWN, dl, feeder, invert);
break;
case RIGHT:
move(i, c, LEFT, dl, feeder, invert);
move(i, c, UP, dl, feeder, invert);
move(i, c, RIGHT, dl, feeder, invert);
break;
}
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}
else if (order > 1) {
switch (dir) {
case UP:
hilbert_curve(i, c, order - 1, dl, feeder, invert, LEFT);
move(i, c, DOWN, dl, feeder, invert);
hilbert_curve(i, c, order - 1, dl, feeder, invert, UP);
move(i, c, RIGHT, dl, feeder, invert);
hilbert_curve(i, c, order - 1, dl, feeder, invert, UP);
move(i, c, UP, dl, feeder, invert);
hilbert_curve(i, c, order - 1, dl, feeder, invert, RIGHT);
break;
case LEFT:
hilbert_curve(i, c, order - 1, dl, feeder, invert, UP);
move(i, c, RIGHT, dl, feeder, invert);
hilbert_curve(i, c, order - 1, dl, feeder, invert, LEFT);
move(i, c, DOWN, dl, feeder, invert);
hilbert_curve(i, c, order - 1, dl, feeder, invert, LEFT);
move(i, c, LEFT, dl, feeder, invert);
hilbert_curve(i, c, order - 1, dl, feeder, invert, DOWN);
break;
case DOWN:
hilbert_curve(i, c, order - 1, dl, feeder, invert, RIGHT);
move(i, c, UP, dl, feeder, invert);
hilbert_curve(i, c, order - 1, dl, feeder, invert, DOWN);
move(i, c, LEFT, dl, feeder, invert);
hilbert_curve(i, c, order - 1, dl, feeder, invert, DOWN);
move(i, c, DOWN, dl, feeder, invert);
hilbert_curve(i, c, order - 1, dl, feeder, invert, LEFT);
break;
case RIGHT:
hilbert_curve(i, c, order - 1, dl, feeder, invert, DOWN);
move(i, c, LEFT, dl, feeder, invert);
hilbert_curve(i, c, order - 1, dl, feeder, invert, RIGHT);
move(i, c, UP, dl, feeder, invert);
hilbert_curve(i, c, order - 1, dl, feeder, invert, RIGHT);
move(i, c, RIGHT, dl, feeder, invert);
hilbert_curve(i, c, order - 1, dl, feeder, invert, UP);
break;
}
}
}
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/// render function
// find two envelope caps for two spheres
// @param cp1, cp2: list of points on the cap
// @param center1, center2: center point of cap
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// @param r1, r2: radius of cap
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void find_envelope(std::vector<typename stim::vec3<float> > &cp1, std::vector<typename stim::vec3<float> > &cp2, stim::vec3<float> center1, stim::vec3<float> center2, float r1, float r2, GLint subdivision) {
stim::vec3<float> tmp_d;
if (r1 == r2) { // two vertices have the same radius
tmp_d = center2 - center1; // calculate the direction vector
tmp_d = tmp_d.norm();
stim::circle<float> tmp_c; // in order to get zero direction vector
tmp_c.rotate(tmp_d);
stim::circle<float> c1(center1, r1, tmp_d, tmp_c.U);
stim::circle<float> c2(center2, r2, tmp_d, tmp_c.U);
cp1 = c1.glpoints(subdivision);
cp2 = c2.glpoints(subdivision);
}
else {
if (r1 < r2) { // switch index, we always want r1 to be larger than r2
stim::vec3<float> tmp_c = center2;
center2 = center1;
center1 = tmp_c;
float tmp_r = r2;
r2 = r1;
r1 = tmp_r;
}
tmp_d = center2 - center1; // bigger one points to smaller one
tmp_d = tmp_d.norm();
float D = (center1 - center2).len();
stim::vec3<float> exp;
exp[0] = (center2[0] * r1 - center1[0] * r2) / (r1 - r2);
exp[1] = (center2[1] * r1 - center1[1] * r2) / (r1 - r2);
stim::vec3<float> t1, t2, t3, t4;
t1[2] = t2[2] = center1[2]; // decide the specific plane to work on
t3[2] = t4[2] = center2[2];
// first two
t1[0] = pow(r1, 2)*(exp[0] - center1[0]);
t1[0] += r1*(exp[1] - center1[1])*sqrt(pow((exp[0] - center1[0]), 2) + pow((exp[1] - center1[1]), 2) - pow(r1, 2));
t1[0] /= (pow((exp[0] - center1[0]), 2) + pow((exp[1] - center1[1]), 2));
t1[0] += center1[0];
t2[0] = pow(r1, 2)*(exp[0] - center1[0]);
t2[0] -= r1*(exp[1] - center1[1])*sqrt(pow((exp[0] - center1[0]), 2) + pow((exp[1] - center1[1]), 2) - pow(r1, 2));
t2[0] /= (pow((exp[0] - center1[0]), 2) + pow((exp[1] - center1[1]), 2));
t2[0] += center1[0];
t1[1] = pow(r1, 2)*(exp[1] - center1[1]);
t1[1] -= r1*(exp[0] - center1[0])*sqrt(pow((exp[0] - center1[0]), 2) + pow((exp[1] - center1[1]), 2) - pow(r1, 2));
t1[1] /= (pow((exp[0] - center1[0]), 2) + pow((exp[1] - center1[1]), 2));
t1[1] += center1[1];
t2[1] = pow(r1, 2)*(exp[1] - center1[1]);
t2[1] += r1*(exp[0] - center1[0])*sqrt(pow((exp[0] - center1[0]), 2) + pow((exp[1] - center1[1]), 2) - pow(r1, 2));
t2[1] /= (pow((exp[0] - center1[0]), 2) + pow((exp[1] - center1[1]), 2));
t2[1] += center1[1];
// check the correctness of the points
//float s = (center1[1] - t1[1])*(exp[1] - t1[1]) / ((t1[0] - center1[0])*(t1[0] - exp[0]));
//if (s != 1) { // swap t1[1] and t2[1]
// float tmp_t = t2[1];
// t2[1] = t1[1];
// t1[1] = tmp_t;
//}
// second two
t3[0] = pow(r2, 2)*(exp[0] - center2[0]);
t3[0] += r2*(exp[1] - center2[1])*sqrt(pow((exp[0] - center2[0]), 2) + pow((exp[1] - center2[1]), 2) - pow(r2, 2));
t3[0] /= (pow((exp[0] - center2[0]), 2) + pow((exp[1] - center2[1]), 2));
t3[0] += center2[0];
t4[0] = pow(r2, 2)*(exp[0] - center2[0]);
t4[0] -= r2*(exp[1] - center2[1])*sqrt(pow((exp[0] - center2[0]), 2) + pow((exp[1] - center2[1]), 2) - pow(r2, 2));
t4[0] /= (pow((exp[0] - center2[0]), 2) + pow((exp[1] - center2[1]), 2));
t4[0] += center2[0];
t3[1] = pow(r2, 2)*(exp[1] - center2[1]);
t3[1] -= r2*(exp[0] - center2[0])*sqrt(pow((exp[0] - center2[0]), 2) + pow((exp[1] - center2[1]), 2) - pow(r2, 2));
t3[1] /= (pow((exp[0] - center2[0]), 2) + pow((exp[1] - center2[1]), 2));
t3[1] += center2[1];
t4[1] = pow(r2, 2)*(exp[1] - center2[1]);
t4[1] += r2*(exp[0] - center2[0])*sqrt(pow((exp[0] - center2[0]), 2) + pow((exp[1] - center2[1]), 2) - pow(r2, 2));
t4[1] /= (pow((exp[0] - center2[0]), 2) + pow((exp[1] - center2[1]), 2));
t4[1] += center2[1];
// check the correctness of the points
//s = (center2[1] - t3[1])*(exp[1] - t3[1]) / ((t3[0] - center2[0])*(t3[0] - exp[0]));
//if (s != 1) { // swap t1[1] and t2[1]
// float tmp_t = t4[1];
// t4[1] = t3[1];
// t3[1] = tmp_t;
//}
stim::vec3<float> d1;
float dot;
float a;
float new_r;
stim::vec3<float> new_u;
stim::vec3<float> new_c;
// calculate the bigger circle
d1 = t1 - center1;
dot = d1.dot(tmp_d);
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a = dot / (r1 * 1) * r1; // a = cos(alpha) * radius
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new_c = center1 + a * tmp_d;
new_r = sqrt(pow(r1, 2) - pow(a, 2));
new_u = t1 - new_c;
stim::circle<float> c1(new_c, new_r, tmp_d, new_u);
cp1 = c1.glpoints(subdivision);
// calculate the smaller circle
d1 = t3 - center2;
dot = d1.dot(tmp_d);
a = dot / (r2 * 1) * r2;
new_c = center2 + a * tmp_d;
new_r = sqrt(pow(r2, 2) - pow(a, 2));
new_u = t3 - new_c;
stim::circle<float> c2(new_c, new_r, tmp_d, new_u);
cp2 = c2.glpoints(subdivision);
}
}
// draw solid sphere at every vertex
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void glSolidSphere(T max_pressure, GLint subdivision, T scale = 1.0f) {
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// waste?
for (unsigned i = 0; i < num_edge; i++) {
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// draw the starting vertex
if (P[E[i].v[0]] != 0) {
stim::vec3<float> new_color;
new_color[0] = (P[E[i].v[0]] / max_pressure) > 0.5f ? 1.0f : 2.0f * P[E[i].v[0]] / max_pressure; // red
new_color[1] = 0.0f; // green
new_color[2] = (P[E[i].v[0]] / max_pressure) > 0.5f ? 1.0f - 2.0f * (P[E[i].v[0]] / max_pressure - 0.5f) : 1.0f; // blue
glColor3f(new_color[0], new_color[1], new_color[2]);
glPushMatrix();
glTranslatef(E[i][0][0], E[i][0][1], E[i][0][2]);
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glutSolidSphere(get_r(i, 0) * scale, subdivision, subdivision);
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glPopMatrix();
}
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else {
glEnable(GL_BLEND); // enable color blend
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); // set blend function
glDisable(GL_DEPTH_TEST);
glColor4f(0.7f, 0.7f, 0.7f, 0.7f); // gray color
glPushMatrix();
glTranslatef(E[i][0][0], E[i][0][1], E[i][0][2]);
glutSolidSphere(get_r(i, 0) * scale, subdivision, subdivision);
glPopMatrix();
glDisable(GL_BLEND);
glEnable(GL_DEPTH_TEST);
}
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// draw the ending vertex
if (P[E[i].v[1]] != 0) {
stim::vec3<float> new_color;
new_color[0] = (P[E[i].v[1]] / max_pressure) > 0.5f ? 1.0f : 2.0f * P[E[i].v[1]] / max_pressure; // red
new_color[1] = 0.0f; // green
new_color[2] = (P[E[i].v[1]] / max_pressure) > 0.5f ? 1.0f - 2.0f * (P[E[i].v[1]] / max_pressure - 0.5f) : 1.0f; // blue
glColor3f(new_color[0], new_color[1], new_color[2]);
|
9191c39e
Jiaming Guo
first version of ...
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834
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glPushMatrix();
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9e60c6a7
Jiaming Guo
fixed minor bug i...
|
835
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glTranslatef(E[i][E[i].size() - 1][0], E[i][E[i].size() - 1][1], E[i][E[i].size() - 1][2]);
|
6332d1e7
Jiaming Guo
fixed warnings
|
836
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glutSolidSphere(get_r(i, (unsigned)(E[i].size() - 1)) * scale, subdivision, subdivision);
|
9191c39e
Jiaming Guo
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glPopMatrix();
}
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6ea69c93
Jiaming Guo
change bus size
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else {
glEnable(GL_BLEND); // enable color blend
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); // set blend function
glDisable(GL_DEPTH_TEST);
glColor4f(0.7f, 0.7f, 0.7f, 0.7f); // gray color
glPushMatrix();
glTranslatef(E[i][E[i].size() - 1][0], E[i][E[i].size() - 1][1], E[i][E[i].size() - 1][2]);
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6332d1e7
Jiaming Guo
fixed warnings
|
846
|
glutSolidSphere(get_r(i, (unsigned)(E[i].size() - 1)) * scale, subdivision, subdivision);
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6ea69c93
Jiaming Guo
change bus size
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848
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glPopMatrix();
glDisable(GL_BLEND);
glEnable(GL_DEPTH_TEST);
}
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Jiaming Guo
first version of ...
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}
}
// draw edges as series of cylinders
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ce1a6f5e
Jiaming Guo
add functions for...
|
855
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void glSolidCylinder(unsigned index, std::vector<unsigned char> color, GLint subdivision, T scale = 1.0f) {
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Jiaming Guo
first version of ...
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stim::vec3<float> tmp_d;
stim::vec3<float> center1;
stim::vec3<float> center2;
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
860
|
stim::circle<float> tmp_c;
|
9191c39e
Jiaming Guo
first version of ...
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float r1;
float r2;
std::vector<typename stim::vec3<float> > cp1(subdivision + 1);
std::vector<typename stim::vec3<float> > cp2(subdivision + 1);
for (unsigned i = 0; i < num_edge; i++) { // for every edge
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
866
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if (i == index) { // render in tranparency for direction indication
|
f4105b89
Jiaming Guo
add new function:...
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867
868
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glEnable(GL_BLEND); // enable color blend
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); // set blend function
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
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869
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glDisable(GL_DEPTH_TEST);
|
6ea69c93
Jiaming Guo
change bus size
|
870
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glColor4f((float)color[i * 3 + 0] / 255, (float)color[i * 3 + 1] / 255, (float)color[i * 3 + 2] / 255, 0.3f);
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9e60c6a7
Jiaming Guo
fixed minor bug i...
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}
else
glColor3f((float)color[i * 3 + 0] / 255, (float)color[i * 3 + 1] / 255, (float)color[i * 3 + 2] / 255);
|
8f6c2057
Jiaming Guo
fixed index marki...
|
874
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Jiaming Guo
first version of ...
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for (unsigned j = 0; j < E[i].size() - 1; j++) { // for every point on the edge
center1 = E[i][j];
center2 = E[i][j + 1];
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6ea69c93
Jiaming Guo
change bus size
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880
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r1 = get_r(i, j) * scale;
r2 = get_r(i, j + 1) * scale;
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
881
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|
9e60c6a7
Jiaming Guo
fixed minor bug i...
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//// calculate the envelope caps
//find_envelope(cp1, cp2, center1, center2, r1, r2, subdivision);
if (j == 0) {
if (E[i].size() == 2)
find_envelope(cp1, cp2, center1, center2, r1, r2, subdivision);
else {
tmp_d = center2 - center1;
tmp_d = tmp_d.norm();
tmp_c.rotate(tmp_d);
stim::circle<float> c1(center1, r1, tmp_d, tmp_c.U);
cp1 = c1.glpoints(subdivision);
tmp_d = (E[i][j + 2] - center2) + (center2 - center1);
tmp_d = tmp_d.norm();
tmp_c.rotate(tmp_d);
stim::circle<float> c2(center2, r2, tmp_d, tmp_c.U);
cp2 = c2.glpoints(subdivision);
}
}
else if (j == E[i].size() - 2) {
tmp_d = (center2 - center1) + (center1 - E[i][j - 1]);
tmp_d = tmp_d.norm();
tmp_c.rotate(tmp_d);
stim::circle<float> c1(center1, r1, tmp_d, tmp_c.U);
cp1 = c1.glpoints(subdivision);
tmp_d = center2 - center1;
tmp_d = tmp_d.norm();
tmp_c.rotate(tmp_d);
stim::circle<float> c2(center2, r2, tmp_d, tmp_c.U);
cp2 = c2.glpoints(subdivision);
}
else {
tmp_d = (center2 - center1) + (center1 - E[i][j - 1]);
tmp_d = tmp_d.norm();
tmp_c.rotate(tmp_d);
stim::circle<float> c1(center1, r1, tmp_d, tmp_c.U);
cp1 = c1.glpoints(subdivision);
tmp_d = (E[i][j + 2] - center2) + (center2 - center1);
tmp_d = tmp_d.norm();
tmp_c.rotate(tmp_d);
stim::circle<float> c2(center2, r2, tmp_d, tmp_c.U);
cp2 = c2.glpoints(subdivision);
}
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Jiaming Guo
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glBegin(GL_QUAD_STRIP);
for (unsigned j = 0; j < cp1.size(); j++) {
glVertex3f(cp1[j][0], cp1[j][1], cp1[j][2]);
glVertex3f(cp2[j][0], cp2[j][1], cp2[j][2]);
}
glEnd();
}
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
932
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if (i == index) {
glDisable(GL_BLEND);
glEnable(GL_DEPTH_TEST);
}
|
9191c39e
Jiaming Guo
first version of ...
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938
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}
glFlush();
|
9191c39e
Jiaming Guo
first version of ...
|
939
940
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}
|
6ea69c93
Jiaming Guo
change bus size
|
941
|
// draw the flow direction as cone, the size of the cone depends on the length of that edge
|
ce1a6f5e
Jiaming Guo
add functions for...
|
942
|
void glSolidCone(unsigned i, GLint subdivision, T scale = 1.0f, T threshold = 0.01f) {
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
943
944
945
946
947
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stim::vec3<T> tmp_d; // direction
stim::vec3<T> center; // cone hat center
stim::vec3<T> head; // cone hat top
stim::circle<T> tmp_c;
|
6ea69c93
Jiaming Guo
change bus size
|
948
|
T h; // height base of the cone
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
949
950
951
|
std::vector<typename stim::vec3<T> > cp;
T radius;
|
6332d1e7
Jiaming Guo
fixed warnings
|
952
|
glColor3f(0.0f, 0.0f, 0.0f); // lime color
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
953
|
|
6332d1e7
Jiaming Guo
fixed warnings
|
954
|
size_t index = E[i].size() / 2 - 1;
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
955
|
tmp_d = E[i][index + 1] - E[i][index];
|
6332d1e7
Jiaming Guo
fixed warnings
|
956
|
h = tmp_d.len() / 3.0f; // get the height base by factor 3
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
957
958
959
|
tmp_d = tmp_d.norm();
center = (E[i][index + 1] + E[i][index]) / 2;
tmp_c.rotate(tmp_d);
|
6332d1e7
Jiaming Guo
fixed warnings
|
960
961
|
radius = (E[i].r((unsigned)(index + 1)) + E[i].r((unsigned)index)) / 2 * scale;
radius = (T)((h / sqrt(3) < radius) ? h / sqrt(3) : radius); // update radius
|
ce1a6f5e
Jiaming Guo
add functions for...
|
962
|
if (v[i] > threshold)
|
6ea69c93
Jiaming Guo
change bus size
|
963
|
head = center + tmp_d * h;
|
ce1a6f5e
Jiaming Guo
add functions for...
|
964
|
else if (v[i] < -threshold)
|
6ea69c93
Jiaming Guo
change bus size
|
965
|
head = center - tmp_d * h;
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
966
967
968
969
|
stim::circle<float> c(center, radius, tmp_d, tmp_c.U);
cp = c.glpoints(subdivision);
|
ce1a6f5e
Jiaming Guo
add functions for...
|
970
971
972
973
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977
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if (v[i] > threshold || v[i] < -threshold) {
glBegin(GL_TRIANGLE_FAN);
glVertex3f(head[0], head[1], head[2]);
for (unsigned k = 0; k < cp.size(); k++)
glVertex3f(cp[k][0], cp[k][1], cp[k][2]);
glEnd();
glFlush();
}
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
978
979
980
981
982
983
984
985
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|
// draw a cone for every edge to indicate
//for (unsigned j = 0; j < E[i].size() - 1; j++) { // for every point on current edge
// tmp_d = E[i][j + 1] - E[i][j];
// tmp_d = tmp_d.norm();
// center = (E[i][j + 1] + E[i][j]) / 2;
// tmp_c.rotate(tmp_d);
// radius = (E[i].r(j + 1) + E[i].r(j)) / 2;
// if (v[i] > 0) // if flow flows from j to j+1
// head = center + tmp_d * 2 * sqrt(3) * radius;
// else
// head = center - tmp_d * 2 * sqrt(3) * radius;
// stim::circle<float> c(center, radius, tmp_d, tmp_c.U);
// cp = c.glpoints(subdivision);
// glBegin(GL_TRIANGLE_FAN);
// glVertex3f(head[0], head[1], head[2]);
// for (unsigned k = 0; k < cp.size(); k++)
// glVertex3f(cp[k][0], cp[k][1], cp[k][2]);
// glEnd();
//}
//glFlush();
}
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1001
|
void glSolidCone(GLint subdivision, T scale = 1.0f, T threhold = 0.01f) {
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
1002
|
|
9191c39e
Jiaming Guo
first version of ...
|
1003
1004
1005
1006
1007
|
stim::vec3<T> tmp_d; // direction
stim::vec3<T> center; // cone hat center
stim::vec3<T> head; // cone hat top
stim::circle<T> tmp_c;
std::vector<typename stim::vec3<T> > cp;
|
6ea69c93
Jiaming Guo
change bus size
|
1008
|
T h;
|
9191c39e
Jiaming Guo
first version of ...
|
1009
1010
|
T radius;
|
6ea69c93
Jiaming Guo
change bus size
|
1011
|
glColor3f(0.600f, 0.847f, 0.788f);
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
1012
|
// draw a cone for every edge to indicate
|
9191c39e
Jiaming Guo
first version of ...
|
1013
|
for (unsigned i = 0; i < num_edge; i++) { // for every edge
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
1014
1015
1016
|
unsigned k1 = E[i].size() / 2 - 1; // start and end index
unsigned k2 = E[i].size() / 2;
tmp_d = E[i][k2] - E[i][k1];
|
6ea69c93
Jiaming Guo
change bus size
|
1017
|
h = tmp_d.len() / 3.0f; // get the height base by factor 3
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
1018
1019
1020
|
tmp_d = tmp_d.norm();
center = (E[i][k2] + E[i][k1]) / 2;
tmp_c.rotate(tmp_d);
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1021
|
radius = (E[i].r(k2) + E[i].r(k1)) / 2 * scale;
|
6ea69c93
Jiaming Guo
change bus size
|
1022
|
radius = (h / sqrt(3) < radius) ? h / sqrt(3) : radius; // update radius by height base if necessary
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1023
|
if (v[i] > threhold) // if flow flows from k1 to k2
|
6ea69c93
Jiaming Guo
change bus size
|
1024
|
head = center + tmp_d * h;
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1025
|
else if(v[i] < -threhold)
|
6ea69c93
Jiaming Guo
change bus size
|
1026
|
head = center - tmp_d * h;
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
1027
1028
1029
|
stim::circle<float> c(center, radius, tmp_d, tmp_c.U);
cp = c.glpoints(subdivision);
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1030
1031
1032
1033
1034
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1036
|
if (v[i] > threhold || v[i] < -threhold) {
glBegin(GL_TRIANGLE_FAN);
glVertex3f(head[0], head[1], head[2]);
for (unsigned k = 0; k < cp.size(); k++)
glVertex3f(cp[k][0], cp[k][1], cp[k][2]);
glEnd();
}
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
1037
1038
1039
1040
1041
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|
//for (unsigned j = 0; j < E[i].size() - 1; j++) { // for every point on current edge
// tmp_d = E[i][j + 1] - E[i][j];
// tmp_d = tmp_d.norm();
// center = (E[i][j + 1] + E[i][j]) / 2;
// tmp_c.rotate(tmp_d);
// radius = (E[i].r(j + 1) + E[i].r(j)) / 2;
// if (v[i] > 0) // if flow flows from j to j+1
// head = center + tmp_d * 2 * sqrt(3) * radius;
// else
// head = center - tmp_d * 2 * sqrt(3) * radius;
// stim::circle<float> c(center, radius, tmp_d, tmp_c.U);
// cp = c.glpoints(subdivision);
// glBegin(GL_TRIANGLE_FAN);
// glVertex3f(head[0], head[1], head[2]);
// for (unsigned k = 0; k < cp.size(); k++)
// glVertex3f(cp[k][0], cp[k][1], cp[k][2]);
// glEnd();
//}
|
9191c39e
Jiaming Guo
first version of ...
|
1057
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1061
|
}
glFlush();
}
// draw main feeder as solid cube
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1062
|
void glSolidCuboid(GLint subdivision, bool manufacture = false, T length = 40.0f, T height = 10.0f) {
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
1063
|
|
9191c39e
Jiaming Guo
first version of ...
|
1064
|
T width;
|
4bb615eb
Jiaming Guo
fixed generating ...
|
1065
1066
1067
|
stim::gl_aaboundingbox<T> BB = (*this).boundingbox();
stim::vec3<T> L = BB.A; // get the bottom left corner
stim::vec3<T> U = BB.B; // get the top right corner
|
9191c39e
Jiaming Guo
first version of ...
|
1068
1069
|
width = U[2] - L[2] + 10.0f;
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1070
1071
1072
1073
|
if (manufacture)
glColor3f(0.0f, 0.0f, 0.0f); // black color
else
glColor3f(0.5f, 0.5f, 0.5f); // gray color
|
9191c39e
Jiaming Guo
first version of ...
|
1074
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for (unsigned i = 0; i < main_feeder.size(); i++) {
// front face
glBegin(GL_QUADS);
glVertex3f(main_feeder[i][0] - length / 2, main_feeder[i][1] - height / 2, main_feeder[i][2] - width / 2);
glVertex3f(main_feeder[i][0] + length / 2, main_feeder[i][1] - height / 2, main_feeder[i][2] - width / 2);
glVertex3f(main_feeder[i][0] + length / 2, main_feeder[i][1] + height / 2, main_feeder[i][2] - width / 2);
glVertex3f(main_feeder[i][0] - length / 2, main_feeder[i][1] + height / 2, main_feeder[i][2] - width / 2);
glEnd();
// back face
glBegin(GL_QUADS);
glVertex3f(main_feeder[i][0] - length / 2, main_feeder[i][1] - height / 2, main_feeder[i][2] + width / 2);
glVertex3f(main_feeder[i][0] + length / 2, main_feeder[i][1] - height / 2, main_feeder[i][2] + width / 2);
glVertex3f(main_feeder[i][0] + length / 2, main_feeder[i][1] + height / 2, main_feeder[i][2] + width / 2);
glVertex3f(main_feeder[i][0] - length / 2, main_feeder[i][1] + height / 2, main_feeder[i][2] + width / 2);
glEnd();
// top face
glBegin(GL_QUADS);
glVertex3f(main_feeder[i][0] - length / 2, main_feeder[i][1] + height / 2, main_feeder[i][2] - width / 2);
glVertex3f(main_feeder[i][0] + length / 2, main_feeder[i][1] + height / 2, main_feeder[i][2] - width / 2);
glVertex3f(main_feeder[i][0] + length / 2, main_feeder[i][1] + height / 2, main_feeder[i][2] + width / 2);
glVertex3f(main_feeder[i][0] - length / 2, main_feeder[i][1] + height / 2, main_feeder[i][2] + width / 2);
glEnd();
// bottom face
glBegin(GL_QUADS);
glVertex3f(main_feeder[i][0] - length / 2, main_feeder[i][1] - height / 2, main_feeder[i][2] - width / 2);
glVertex3f(main_feeder[i][0] + length / 2, main_feeder[i][1] - height / 2, main_feeder[i][2] - width / 2);
glVertex3f(main_feeder[i][0] + length / 2, main_feeder[i][1] - height / 2, main_feeder[i][2] + width / 2);
glVertex3f(main_feeder[i][0] - length / 2, main_feeder[i][1] - height / 2, main_feeder[i][2] + width / 2);
glEnd();
// left face
glBegin(GL_QUADS);
glVertex3f(main_feeder[i][0] - length / 2, main_feeder[i][1] - height / 2, main_feeder[i][2] - width / 2);
glVertex3f(main_feeder[i][0] - length / 2, main_feeder[i][1] - height / 2, main_feeder[i][2] + width / 2);
glVertex3f(main_feeder[i][0] - length / 2, main_feeder[i][1] + height / 2, main_feeder[i][2] + width / 2);
glVertex3f(main_feeder[i][0] - length / 2, main_feeder[i][1] + height / 2, main_feeder[i][2] - width / 2);
glEnd();
// right face
glBegin(GL_QUADS);
glVertex3f(main_feeder[i][0] + length / 2, main_feeder[i][1] - height / 2, main_feeder[i][2] - width / 2);
glVertex3f(main_feeder[i][0] + length / 2, main_feeder[i][1] + height / 2, main_feeder[i][2] - width / 2);
glVertex3f(main_feeder[i][0] + length / 2, main_feeder[i][1] + height / 2, main_feeder[i][2] + width / 2);
glVertex3f(main_feeder[i][0] + length / 2, main_feeder[i][1] - height / 2, main_feeder[i][2] + width / 2);
glEnd();
}
|
9191c39e
Jiaming Guo
first version of ...
|
1123
1124
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}
|
057ea93b
Jiaming Guo
add flow velocity...
|
1125
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// draw flow velocity field, glyph
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1126
|
void glyph(std::vector<unsigned char> color, GLint subdivision, T scale = 1.0f, bool frame = false, T r = 4.0f, T threshold = 0.01f) {
|
057ea93b
Jiaming Guo
add flow velocity...
|
1127
1128
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// v1----v2-->v3
T k = 4.0f; // quartering
stim::vec3<T> v1, v2, v3; // three point
stim::vec3<T> d; // direction vector
stim::circle<float> tmp_c;
std::vector<typename stim::vec3<float> > cp1(subdivision + 1);
std::vector<typename stim::vec3<float> > cp2(subdivision + 1);
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1136
|
// rendering the arrows
|
057ea93b
Jiaming Guo
add flow velocity...
|
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1138
1139
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1141
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for (unsigned i = 0; i < num_edge; i++) { // for every edge
glColor3f((float)color[i * 3 + 0] / 255.0f, (float)color[i * 3 + 1] / 255.0f, (float)color[i * 3 + 2] / 255.0f);
for (unsigned j = 0; j < E[i].size() - 1; j++) { // for every point on that edge
// consider the velocity valuence
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1142
|
if (v[i] > threshold) { // positive, from start point to end point
|
057ea93b
Jiaming Guo
add flow velocity...
|
1143
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v1 = E[i][j];
v3 = E[i][j + 1];
}
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1146
|
else if (v[i] < -threshold) { // negative, from end point to start point
|
057ea93b
Jiaming Guo
add flow velocity...
|
1147
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v1 = E[i][j + 1];
v3 = E[i][j];
}
|
ce1a6f5e
Jiaming Guo
add functions for...
|
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if (v[i] > threshold || v[i] < -threshold) {
d = v3 - v1;
// place the arrow in the middel of one edge
v2 = v1 + (1.0f / k * 2.0f) * d; // looks like =->=
v1 = v1 + (1.0f / k) * d;
v3 = v3 - (1.0f / k) * d;
d = d.norm();
tmp_c.rotate(d);
// render the cylinder part
stim::circle<T> c1(v1, r / 2 * scale, d, tmp_c.U);
cp1 = c1.glpoints(subdivision);
stim::circle<T> c2(v2, r / 2 * scale, d, tmp_c.U);
cp2 = c2.glpoints(subdivision);
glBegin(GL_QUAD_STRIP);
for (unsigned k = 0; k < cp1.size(); k++) {
glVertex3f(cp1[k][0], cp1[k][1], cp1[k][2]);
glVertex3f(cp2[k][0], cp2[k][1], cp2[k][2]);
}
glEnd();
// render the cone part
stim::circle<T> c3(v2, r * scale, d, tmp_c.U);
cp2 = c3.glpoints(subdivision);
glBegin(GL_TRIANGLE_FAN);
glVertex3f(v3[0], v3[1], v3[2]);
for (unsigned k = 0; k < cp2.size(); k++)
glVertex3f(cp2[k][0], cp2[k][1], cp2[k][2]);
glEnd();
|
057ea93b
Jiaming Guo
add flow velocity...
|
1181
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}
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1182
1183
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}
}
|
057ea93b
Jiaming Guo
add flow velocity...
|
1184
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ce1a6f5e
Jiaming Guo
add functions for...
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// rendering frames
if (frame) {
frame = false;
stim::vec3<float> center1;
stim::vec3<float> center2;
stim::vec3<float> tmp_d; // flow direction
float r1, r2;
for (unsigned i = 0; i < num_edge; i++) {
for (unsigned j = 0; j < E[i].size() - 1; j++) {
center1 = E[i][j];
center2 = E[i][j + 1];
r1 = get_r(i, j) * scale;
r2 = get_r(i, j + 1) * scale;
subdivision = 5; // rough frames
if (j == 0) {
if (E[i].size() == 2)
find_envelope(cp1, cp2, center1, center2, r1, r2, subdivision);
else {
tmp_d = center2 - center1;
tmp_d = tmp_d.norm();
tmp_c.rotate(tmp_d);
stim::circle<float> c1(center1, r1, tmp_d, tmp_c.U);
cp1 = c1.glpoints(subdivision);
tmp_d = (E[i][j + 2] - center2) + (center2 - center1);
tmp_d = tmp_d.norm();
tmp_c.rotate(tmp_d);
stim::circle<float> c2(center2, r2, tmp_d, tmp_c.U);
cp2 = c2.glpoints(subdivision);
}
}
else if (j == E[i].size() - 2) {
tmp_d = (center2 - center1) + (center1 - E[i][j - 1]);
tmp_d = tmp_d.norm();
tmp_c.rotate(tmp_d);
stim::circle<float> c1(center1, r1, tmp_d, tmp_c.U);
cp1 = c1.glpoints(subdivision);
tmp_d = center2 - center1;
tmp_d = tmp_d.norm();
tmp_c.rotate(tmp_d);
stim::circle<float> c2(center2, r2, tmp_d, tmp_c.U);
cp2 = c2.glpoints(subdivision);
}
else {
tmp_d = (center2 - center1) + (center1 - E[i][j - 1]);
tmp_d = tmp_d.norm();
tmp_c.rotate(tmp_d);
stim::circle<float> c1(center1, r1, tmp_d, tmp_c.U);
cp1 = c1.glpoints(subdivision);
tmp_d = (E[i][j + 2] - center2) + (center2 - center1);
tmp_d = tmp_d.norm();
tmp_c.rotate(tmp_d);
stim::circle<float> c2(center2, r2, tmp_d, tmp_c.U);
cp2 = c2.glpoints(subdivision);
}
glColor3f(140/255.0f, 81/255.0f, 10/255.0f);
glBegin(GL_LINES);
for (unsigned k = 0; k < cp1.size(); k++) {
glVertex3f(cp1[k][0], cp1[k][1], cp1[k][2]);
glVertex3f(cp2[k][0], cp2[k][1], cp2[k][2]);
}
glEnd();
}
|
057ea93b
Jiaming Guo
add flow velocity...
|
1252
1253
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}
}
|
057ea93b
Jiaming Guo
add flow velocity...
|
1254
1255
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}
|
b61addd8
Jiaming Guo
add adjustment fe...
|
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|
// display the total volume flow rate
void display_flow_rate(T in, T out) {
glMatrixMode(GL_PROJECTION); // set up the 2d viewport for mode text printing
glPushMatrix();
glLoadIdentity();
int X = glutGet(GLUT_WINDOW_WIDTH); // get the current window width
int Y = glutGet(GLUT_WINDOW_HEIGHT); // get the current window height
glViewport(0, 0, X, Y); // locate to left bottom corner
gluOrtho2D(0, X, 0, Y); // define othogonal aspect
glColor3f(0.8f, 0.0f, 0.0f); // using red to show mode
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
|
6332d1e7
Jiaming Guo
fixed warnings
|
1271
|
glRasterPos2f((GLfloat)(X / 2), (GLfloat)5.0f); // hard coded position!!!!!
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1272
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1284
|
std::stringstream ss_p;
ss_p << "Q = "; // Q = * um^3/s
ss_p << in;
ss_p << " ";
ss_p << units;
ss_p << "^3/s";
glutBitmapString(GLUT_BITMAP_TIMES_ROMAN_24, (const unsigned char*)(ss_p.str().c_str()));
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
}
|
0224d2ef
Jiaming Guo
fixed square wave...
|
1285
|
// draw the bridge as lines or arrows
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1286
|
void line_bridge(bool &redisplay, T r = 4.0f) {
|
f4105b89
Jiaming Guo
add new function:...
|
1287
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|
ce1a6f5e
Jiaming Guo
add functions for...
|
1288
|
if (redisplay) { // check to see whether the display list needs to be updated
|
f4105b89
Jiaming Guo
add new function:...
|
1289
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glDeleteLists(dlist, 1);
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1290
1291
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redisplay = false;
}
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
1292
1293
1294
1295
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if (!glIsList(dlist)) {
dlist = glGenLists(1);
glNewList(dlist, GL_COMPILE);
|
f4105b89
Jiaming Guo
add new function:...
|
1296
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|
ce1a6f5e
Jiaming Guo
add functions for...
|
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|
//// render flow direction arrows
//if (arrow) {
// // v1----v2-->v3
// T k = 4.0f; // quartering
// stim::vec3<T> v1, v2, v3; // three point
// stim::vec3<T> d; // direction vector
// stim::circle<float> tmp_c;
// std::vector<typename stim::vec3<float> > cp1(subdivision + 1);
// std::vector<typename stim::vec3<float> > cp2(subdivision + 1);
// // inlet, right-going
// for (unsigned i = 0; i < inlet.size(); i++) {
// if (inlet_feasibility[i])
// glColor3f(0.0f, 0.0f, 0.0f); // feasible -> black
// else
// glColor3f(1.0f, 0.0f, 0.0f); // nonfeasible -> red
// for (unsigned j = 0; j < inlet[i].V.size() - 1; j++) {
// v1 = inlet[i].V[j];
// v3 = inlet[i].V[j + 1];
// d = v3 - v1;
// // place the arrow in the middel of one edge
// v2 = v1 + (1.0f / k * 2.0f) * d; // looks like =->=
// v1 = v1 + (1.0f / k) * d;
// v3 = v3 - (1.0f / k) * d;
// d = d.norm();
// tmp_c.rotate(d);
// // render the cylinder part
// stim::circle<T> c1(v1, r / 2, d, tmp_c.U);
// cp1 = c1.glpoints(subdivision);
// stim::circle<T> c2(v2, r / 2, d, tmp_c.U);
// cp2 = c2.glpoints(subdivision);
// glBegin(GL_QUAD_STRIP);
// for (unsigned k = 0; k < cp1.size(); k++) {
// glVertex3f(cp1[k][0], cp1[k][1], cp1[k][2]);
// glVertex3f(cp2[k][0], cp2[k][1], cp2[k][2]);
// }
// glEnd();
// // render the cone part
// stim::circle<T> c3(v2, r, d, tmp_c.U);
// cp2 = c3.glpoints(subdivision);
// glBegin(GL_TRIANGLE_FAN);
// glVertex3f(v3[0], v3[1], v3[2]);
// for (unsigned k = 0; k < cp2.size(); k++)
// glVertex3f(cp2[k][0], cp2[k][1], cp2[k][2]);
// glEnd();
// }
// }
// // outlet, right-going
// for (unsigned i = 0; i < outlet.size(); i++) {
// if (outlet_feasibility[i])
// glColor3f(0.0f, 0.0f, 0.0f); // feasible -> black
// else
// glColor3f(1.0f, 0.0f, 0.0f); // nonfeasible -> red
// for (unsigned j = 0; j < outlet[i].V.size() - 1; j++) {
// v1 = outlet[i].V[j + 1];
// v3 = outlet[i].V[j];
// d = v3 - v1;
// // place the arrow in the middel of one edge
// v2 = v1 + (1.0f / k * 2.0f) * d; // looks like =->=
// v1 = v1 + (1.0f / k) * d;
// v3 = v3 - (1.0f / k) * d;
// d = d.norm();
// tmp_c.rotate(d);
// // render the cylinder part
// stim::circle<T> c1(v1, r / 2, d, tmp_c.U);
// cp1 = c1.glpoints(subdivision);
// stim::circle<T> c2(v2, r / 2, d, tmp_c.U);
// cp2 = c2.glpoints(subdivision);
// glBegin(GL_QUAD_STRIP);
// for (unsigned k = 0; k < cp1.size(); k++) {
// glVertex3f(cp1[k][0], cp1[k][1], cp1[k][2]);
// glVertex3f(cp2[k][0], cp2[k][1], cp2[k][2]);
// }
// glEnd();
// // render the cone part
// stim::circle<T> c3(v2, r, d, tmp_c.U);
// cp2 = c3.glpoints(subdivision);
// glBegin(GL_TRIANGLE_FAN);
// glVertex3f(v3[0], v3[1], v3[2]);
// for (unsigned k = 0; k < cp2.size(); k++)
// glVertex3f(cp2[k][0], cp2[k][1], cp2[k][2]);
// glEnd();
// }
// }
// // render transparent lines as indexing
// glEnable(GL_BLEND); // enable color blend
// glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); // set blend function
// glDisable(GL_DEPTH_TEST);
|
0224d2ef
Jiaming Guo
fixed square wave...
|
1393
1394
1395
|
glLineWidth(5);
for (unsigned i = 0; i < inlet.size(); i++) {
if (inlet_feasibility[i])
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1396
1397
|
glColor3f(0.0f, 0.0f, 0.0f);
// glColor4f(0.0f, 0.0f, 0.0f, 0.2f); // feasible -> black
|
0224d2ef
Jiaming Guo
fixed square wave...
|
1398
|
else
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1399
1400
|
glColor3f(1.0f, 0.0f, 0.0f);
// glColor4f(1.0f, 0.0f, 0.0f, 0.2f); // nonfeasible -> red
|
0224d2ef
Jiaming Guo
fixed square wave...
|
1401
1402
1403
1404
1405
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1407
1408
|
glBegin(GL_LINE_STRIP);
for (unsigned j = 0; j < inlet[i].V.size(); j++)
glVertex3f(inlet[i].V[j][0], inlet[i].V[j][1], inlet[i].V[j][2]);
glEnd();
}
for (unsigned i = 0; i < outlet.size(); i++) {
if (outlet_feasibility[i])
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1409
1410
|
glColor3f(0.0f, 0.0f, 0.0f);
// glColor4f(0.0f, 0.0f, 0.0f, 0.2f); // feasible -> black
|
0224d2ef
Jiaming Guo
fixed square wave...
|
1411
|
else
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1412
1413
|
glColor3f(1.0f, 0.0f, 0.0f);
// glColor4f(1.0f, 0.0f, 0.0f, 0.2f); // nonfeasible -> red
|
0224d2ef
Jiaming Guo
fixed square wave...
|
1414
1415
1416
1417
1418
|
glBegin(GL_LINE_STRIP);
for (unsigned j = 0; j < outlet[i].V.size(); j++)
glVertex3f(outlet[i].V[j][0], outlet[i].V[j][1], outlet[i].V[j][2]);
glEnd();
}
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1419
1420
1421
|
// glDisable(GL_BLEND);
// glEnable(GL_DEPTH_TEST);
//}
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
1422
|
glEndList();
|
9191c39e
Jiaming Guo
first version of ...
|
1423
|
}
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
1424
|
glCallList(dlist);
|
9191c39e
Jiaming Guo
first version of ...
|
1425
1426
1427
|
}
// draw the bridge as tubes
|
6332d1e7
Jiaming Guo
fixed warnings
|
1428
|
void tube_bridge(bool &redisplay, GLint subdivision, T scale = 1.0f, T radius = 5.0f) {
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1429
1430
1431
1432
1433
|
if (redisplay) {
glDeleteLists(dlist + 1, 1);
redisplay = false;
}
|
9191c39e
Jiaming Guo
first version of ...
|
1434
|
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
1435
1436
1437
1438
1439
1440
1441
|
if (!glIsList(dlist + 1)) {
glNewList(dlist + 1, GL_COMPILE);
stim::vec3<T> dir; // direction vector
stim::circle<T> unit_c; // unit circle for finding the rotation start direction
std::vector<typename stim::vec3<T> > cp1;
std::vector<typename stim::vec3<T> > cp2;
|
8334680a
Jiaming Guo
add square wave c...
|
1442
|
glColor3f(0.0f, 0.0f, 0.0f);
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
1443
1444
1445
1446
1447
1448
|
for (unsigned i = 0; i < inlet.size(); i++) {
// render vertex as sphere
for (unsigned j = 1; j < inlet[i].V.size() - 1; j++) {
glPushMatrix();
glTranslatef(inlet[i].V[j][0], inlet[i].V[j][1], inlet[i].V[j][2]);
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1449
|
glutSolidSphere(radius * scale, subdivision, subdivision);
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
1450
1451
1452
1453
1454
1455
1456
|
glPopMatrix();
}
// render edge as cylinder
for (unsigned j = 0; j < inlet[i].V.size() - 1; j++) {
dir = inlet[i].V[j] - inlet[i].V[j + 1];
dir = dir.norm();
unit_c.rotate(dir);
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1457
1458
|
stim::circle<T> c1(inlet[i].V[j], inlet[i].r * scale, dir, unit_c.U);
stim::circle<T> c2(inlet[i].V[j + 1], inlet[i].r * scale, dir, unit_c.U);
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
1459
1460
1461
1462
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1467
|
cp1 = c1.glpoints(subdivision);
cp2 = c2.glpoints(subdivision);
glBegin(GL_QUAD_STRIP);
for (unsigned k = 0; k < cp1.size(); k++) {
glVertex3f(cp1[k][0], cp1[k][1], cp1[k][2]);
glVertex3f(cp2[k][0], cp2[k][1], cp2[k][2]);
}
glEnd();
|
9191c39e
Jiaming Guo
first version of ...
|
1468
|
}
|
9191c39e
Jiaming Guo
first version of ...
|
1469
|
}
|
9191c39e
Jiaming Guo
first version of ...
|
1470
|
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
1471
1472
1473
1474
1475
|
for (unsigned i = 0; i < outlet.size(); i++) {
// render vertex as sphere
for (unsigned j = 1; j < outlet[i].V.size() - 1; j++) {
glPushMatrix();
glTranslatef(outlet[i].V[j][0], outlet[i].V[j][1], outlet[i].V[j][2]);
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glutSolidSphere(radius * scale, subdivision, subdivision);
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glPopMatrix();
}
// render edge as cylinder
for (unsigned j = 0; j < outlet[i].V.size() - 1; j++) {
dir = outlet[i].V[j] - outlet[i].V[j + 1];
dir = dir.norm();
unit_c.rotate(dir);
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stim::circle<T> c1(outlet[i].V[j], outlet[i].r * scale, dir, unit_c.U);
stim::circle<T> c2(outlet[i].V[j + 1], outlet[i].r * scale, dir, unit_c.U);
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cp1 = c1.glpoints(subdivision);
cp2 = c2.glpoints(subdivision);
glBegin(GL_QUAD_STRIP);
for (unsigned k = 0; k < cp1.size(); k++) {
glVertex3f(cp1[k][0], cp1[k][1], cp1[k][2]);
glVertex3f(cp2[k][0], cp2[k][1], cp2[k][2]);
}
glEnd();
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}
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}
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glEndList();
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}
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glCallList(dlist + 1);
}
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// draw gradient color bounding box outside the object
void bounding_box() {
stim::vec3<T> L = bb.A; // get the bottom left corner
stim::vec3<T> U = bb.B; // get the top right corner
glLineWidth(1);
// front face of the box (in L[2])
glBegin(GL_LINE_LOOP);
glColor3f(0.0f, 0.0f, 0.0f);
glVertex3f(L[0], L[1], L[2]);
glColor3f(0.0f, 1.0f, 0.0f);
glVertex3f(L[0], U[1], L[2]);
glColor3f(1.0f, 1.0f, 0.0f);
glVertex3f(U[0], U[1], L[2]);
glColor3f(1.0f, 0.0f, 0.0f);
glVertex3f(U[0], L[1], L[2]);
glEnd();
// back face of the box (in U[2])
glBegin(GL_LINE_LOOP);
glColor3f(1.0f, 1.0f, 1.0f);
glVertex3f(U[0], U[1], U[2]);
glColor3f(0.0f, 1.0f, 1.0f);
glVertex3f(L[0], U[1], U[2]);
glColor3f(0.0f, 0.0f, 1.0f);
glVertex3f(L[0], L[1], U[2]);
glColor3f(1.0f, 0.0f, 1.0f);
glVertex3f(U[0], L[1], U[2]);
glEnd();
// fill out the rest of the lines to connect the two faces
glBegin(GL_LINES);
glColor3f(0.0f, 1.0f, 0.0f);
glVertex3f(L[0], U[1], L[2]);
glColor3f(0.0f, 1.0f, 1.0f);
glVertex3f(L[0], U[1], U[2]);
glColor3f(1.0f, 1.0f, 1.0f);
glVertex3f(U[0], U[1], U[2]);
glColor3f(1.0f, 1.0f, 0.0f);
glVertex3f(U[0], U[1], L[2]);
glColor3f(1.0f, 0.0f, 0.0f);
glVertex3f(U[0], L[1], L[2]);
glColor3f(1.0f, 0.0f, 1.0f);
glVertex3f(U[0], L[1], U[2]);
glColor3f(0.0f, 0.0f, 1.0f);
glVertex3f(L[0], L[1], U[2]);
glColor3f(0.0f, 0.0f, 0.0f);
glVertex3f(L[0], L[1], L[2]);
glEnd();
}
// mark the vertex
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void mark_vertex(std::vector<stim::vec3<T> > vertex, T scale = 1.0f) {
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glColor3f(0.0f, 0.0f, 0.0f);
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for (unsigned i = 0; i < vertex.size(); i++) {
glRasterPos3f(vertex[i][0], vertex[i][1] + get_radius(i) * scale, vertex[i][2]); // place position
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std::stringstream ss;
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ss << i; // store index value
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glutBitmapString(GLUT_BITMAP_HELVETICA_18, (const unsigned char*)(ss.str().c_str()));
}
}
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// mark the edge
void mark_edge() {
glColor3f(0.0f, 1.0f, 0.0f);
for (unsigned i = 0; i < num_edge; i++) {
glRasterPos3f((V[E[i].v[0]] + V[E[i].v[1]])[0]/2, (V[E[i].v[0]] + V[E[i].v[1]])[1] / 2, (V[E[i].v[0]] + V[E[i].v[1]])[2] / 2);
std::stringstream ss;
ss << i;
glutBitmapString(GLUT_BITMAP_HELVETICA_18, (const unsigned char*)(ss.str().c_str()));
}
}
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// find the nearest vertex of current click position
// return true and a value if found
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inline bool epsilon_vertex(T x, T y, T z, T eps, T scale, unsigned& v) {
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T d = FLT_MAX; // minimum distance between 2 vertices
T tmp_d = 0.0f; // temporary stores distance for loop
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unsigned tmp_i = 0; // temporary stores connection index for loop
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stim::vec3<T> tmp_v; // temporary stores current loop point
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d = FLT_MAX; // set to max of float number
for (unsigned i = 0; i < V.size(); i++) {
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tmp_v = stim::vec3<T>(x, y, z);
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tmp_v = tmp_v - V[i]; // calculate a vector between two vertices
tmp_d = tmp_v.len(); // calculate length of that vector
if (tmp_d < d) {
d = tmp_d; // if found a nearer vertex
tmp_i = i; // get the index of that vertex
}
}
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eps += get_radius(tmp_i) * scale; // increase epsilon accordingly
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if (d < eps) { // if current click is close to any vertex
v = tmp_i; // copy the extant vertex's index to v
return true;
}
return false;
}
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Jiaming Guo
fixed minor bug i...
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// find the nearest inlet/outlet connection line of current click position
// ab -> line segment, v -> point
// return true and a value if found
inline bool epsilon_edge(T x, T y, T z, T eps, unsigned &idx) {
T d = FLT_MAX;
T tmp_d;
unsigned tmp_i = 0;
unsigned tmp_j = 0;
stim::vec3<T> v1;
stim::vec3<T> v2;
stim::vec3<T> v3;
stim::vec3<T> v0 = stim::vec3<float>(x, y, z);
bool online = false; // flag indicates the point is on the line-segment
float a, b;
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// inner network
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for (unsigned i = 0; i < E.size(); i++) {
for (unsigned j = 0; j < E[i].size() - 1; j++) {
v1 = E[i][j + 1] - E[i][j]; // a -> b = ab
v2 = v0 - E[i][j]; // a -> v = av
v3 = v0 - E[i][j + 1]; // b -> v = bv
tmp_d = v2.dot(v1); // av·ab
// check the line relative position
a = v2.dot(v1.norm());
b = v3.dot(v1.norm());
if (a < v1.len() && b < v1.len()) // if the length of projection fragment is longer than the line-segment
online = true;
else
online = false;
|
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Jiaming Guo
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if (tmp_d <= 0.0 || tmp_d >= std::pow(v1.len(), 2) && !online) // projection lies outside the line-segment
|
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Jiaming Guo
fixed minor bug i...
|
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continue;
else {
tmp_d = v1.cross(v2).len() / v1.len(); // perpendicular distance of point to segment: |v1 x v2| / |v1|
if (tmp_d < d) {
d = tmp_d;
tmp_i = i;
tmp_j = j;
}
}
}
}
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fixed minor bug i...
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eps += get_radius(tmp_i, tmp_j);
if (d < eps) {
idx = tmp_i;
return true;
}
return false;
}
|
f4105b89
Jiaming Guo
add new function:...
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inline bool epsilon_edge(T x, T y, T z, T eps, unsigned &idx, unsigned &port) {
T d = FLT_MAX;
T tmp_d;
unsigned tmp_i = 0;
stim::vec3<T> v1;
stim::vec3<T> v2;
stim::vec3<T> v3;
stim::vec3<T> v0 = stim::vec3<float>(x, y, z);
bool online = false; // flag indicates the point is on the line-segment
float a, b;
// inlet connection
for (unsigned i = 0; i < inlet.size(); i++) {
for (unsigned j = 0; j < inlet[i].V.size() - 1; j++) {
v1 = inlet[i].V[j + 1] - inlet[i].V[j];
v2 = v0 - inlet[i].V[j];
v3 = v0 - inlet[i].V[j + 1];
tmp_d = v2.dot(v1); // av·ab
// check the line relative position
a = v2.dot(v1.norm());
b = v3.dot(v1.norm());
if (a < v1.len() && b < v1.len()) // if the length of projection fragment is longer than the line-segment
online = true;
else
online = false;
if (tmp_d <= 0.0 || tmp_d > std::pow(v1.len(), 2) && !online) // projection lies outside the line-segment
continue;
else {
tmp_d = v1.cross(v2).len() / v1.len(); // perpendicular distance of point to segment: |v1 x v2| / |v1|
if (tmp_d < d) {
d = tmp_d;
tmp_i = i;
port = 0;
}
}
}
}
// outlet connection
for (unsigned i = 0; i < outlet.size(); i++) {
for (unsigned j = 0; j < outlet[i].V.size() - 1; j++) {
v1 = outlet[i].V[j + 1] - outlet[i].V[j];
v2 = v0 - outlet[i].V[j];
v3 = v0 - outlet[i].V[j + 1];
tmp_d = v2.dot(v1); // av·ab
// check the line relative position
a = v2.dot(v1.norm());
b = v3.dot(v1.norm());
if (a < v1.len() && b < v1.len()) // if the length of projection fragment is longer than the line-segment
online = true;
else
online = false;
if (tmp_d <= 0.0 || tmp_d > std::pow(v1.len(), 2) && !online) // projection lies outside the line-segment
continue;
else {
tmp_d = v1.cross(v2).len() / v1.len(); // perpendicular distance of point to segment: |v1 x v2| / |v1|
if (tmp_d < d) {
d = tmp_d;
tmp_i = i;
port = 1;
}
}
}
}
if (d < eps) {
idx = tmp_i;
return true;
}
return false;
}
|
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Jiaming Guo
fixed minor bug i...
|
1742
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first version of ...
|
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/// build main feeder connection
// set up main feeder and main port of both input and output
|
15fc312f
Jiaming Guo
fixed modes conflict
|
1745
|
void set_main_feeder(T border = 120.0f) {
|
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Jiaming Guo
first version of ...
|
1746
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// 0 means outgoing while 1 means incoming
stim::vec3<T> inlet_main_feeder;
stim::vec3<T> outlet_main_feeder;
inlet_main_feeder = stim::vec3<T>(bb.A[0] - border, bb.center()[1], bb.center()[2]);
outlet_main_feeder = stim::vec3<T>(bb.B[0] + border, bb.center()[1], bb.center()[2]);
|
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Jiaming Guo
add adjustment fe...
|
1754
|
main_feeder.push_back(inlet_main_feeder); // 0->inlet, 1->outlet
|
9191c39e
Jiaming Guo
first version of ...
|
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main_feeder.push_back(outlet_main_feeder);
// find both input and output vertex
stim::triple<unsigned, unsigned, float> tmp;
|
6332d1e7
Jiaming Guo
fixed warnings
|
1759
|
size_t N = pendant_vertex.size(); // get the number of dangle vertex
|
9191c39e
Jiaming Guo
first version of ...
|
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unsigned idx = 0;
for (unsigned i = 0; i < N; i++) { // for every boundary vertex
idx = pendant_vertex[i];
for (unsigned j = 0; j < num_edge; j++) { // for every edge
if (Q[j].first == idx) { // starting vertex
if (Q[j].third > 0) { // flow comes in
tmp.first = idx;
tmp.second = j;
tmp.third = Q[j].third;
input.push_back(tmp);
break;
}
// their might be a degenerate case that it equals to 0?
else if (Q[j].third < 0) { // flow comes out
tmp.first = idx;
tmp.second = j;
tmp.third = -Q[j].third;
output.push_back(tmp);
break;
}
}
else if (Q[j].second == idx) { // ending vertex
if (Q[j].third > 0) { // flow comes in
tmp.first = idx;
tmp.second = j;
tmp.third = Q[j].third;
output.push_back(tmp);
break;
}
// their might be a degenerate case that it equals to 0?
else if (Q[j].third < 0) { // flow comes out
tmp.first = idx;
tmp.second = j;
tmp.third = -Q[j].third;
input.push_back(tmp);
break;
}
}
}
}
}
// build connection between all inlets and outlets
// connection will trail along one axis around the bounding box
|
8334680a
Jiaming Guo
add square wave c...
|
1804
|
void build_synthetic_connection(T viscosity, T radius = 5.0f) {
|
9191c39e
Jiaming Guo
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|
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stim::vec3<T> L = bb.A; // get the bottom left corner
stim::vec3<T> U = bb.B; // get the top right corner
T box_length = U[0] - L[0];
T x0, dx;
stim::vec3<T> tmp_v; // start vertex
stim::vec3<T> mid_v; // middle point of the bridge
stim::vec3<T> bus_v; // point on the bus
|
6ea69c93
Jiaming Guo
change bus size
|
1814
|
x0 = main_feeder[0][0] + 15.0f; // assume bus length is 40.0f
|
9191c39e
Jiaming Guo
first version of ...
|
1815
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for (unsigned i = 0; i < input.size(); i++) {
tmp_v = V[input[i].first];
|
6ea69c93
Jiaming Guo
change bus size
|
1818
|
dx = 30.0f * ((tmp_v[0] - L[0]) / box_length); // the socket position depends on proximity
|
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bus_v = stim::vec3<T>(x0 - dx, main_feeder[0][1], tmp_v[2]);
mid_v = stim::vec3<T>(x0 - dx, tmp_v[1], tmp_v[2]);
stim::bridge<T> tmp_b;
tmp_b.V.push_back(bus_v);
tmp_b.V.push_back(mid_v);
tmp_b.V.push_back(tmp_v);
tmp_b.v.push_back(input[i].first);
tmp_b.Q = input[i].third;
tmp_b.l = (bus_v - mid_v).len() + (mid_v - tmp_v).len();
|
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add square wave c...
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tmp_b.r = radius;
|
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first version of ...
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inlet.push_back(tmp_b);
}
|
6ea69c93
Jiaming Guo
change bus size
|
1834
|
x0 = main_feeder[1][0] - 15.0f;
|
9191c39e
Jiaming Guo
first version of ...
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for (unsigned i = 0; i < output.size(); i++) {
tmp_v = V[output[i].first];
|
6ea69c93
Jiaming Guo
change bus size
|
1838
|
dx = 30.0f * ((U[0] - tmp_v[0]) / box_length); // the socket position depends on proximity
|
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bus_v = stim::vec3<T>(x0 + dx, main_feeder[1][1], tmp_v[2]);
mid_v = stim::vec3<T>(x0 + dx, tmp_v[1], tmp_v[2]);
stim::bridge<T> tmp_b;
tmp_b.V.push_back(bus_v);
tmp_b.V.push_back(mid_v);
tmp_b.V.push_back(tmp_v);
tmp_b.v.push_back(output[i].first);
tmp_b.Q = output[i].third;
tmp_b.l = (bus_v - mid_v).len() + (mid_v - tmp_v).len();
|
8334680a
Jiaming Guo
add square wave c...
|
1849
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tmp_b.r = radius;
|
9191c39e
Jiaming Guo
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outlet.push_back(tmp_b);
}
|
f4105b89
Jiaming Guo
add new function:...
|
1853
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backup();
|
9191c39e
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}
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8334680a
Jiaming Guo
add square wave c...
|
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// find the number of U-shape or square-shape structure for extending length of connection
// @param t: width = t * radius
|
6332d1e7
Jiaming Guo
fixed warnings
|
1859
|
int find_number_square(T origin_l, T desire_l, int times = 10, T radius = 5.0f) {
|
8334680a
Jiaming Guo
add square wave c...
|
1860
1861
|
bool done = false; // flag indicates the current number of square shape structure is feasible
|
6332d1e7
Jiaming Guo
fixed warnings
|
1862
|
int n = (int)(origin_l / (times * 4 * radius)); // number of square shape structure
|
8334680a
Jiaming Guo
add square wave c...
|
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
|
T need_l = desire_l - origin_l;
T height; // height of the square shapce structure
while (!done) {
height = need_l / (2 * n); // calculate the height
if (height > 2 * radius) {
done = true;
}
else {
n--;
}
}
return n;
}
// build square connections
|
0224d2ef
Jiaming Guo
fixed square wave...
|
1880
|
void build_square_connection(int i, T width, T height, T origin_l, T desire_l, int n, int feeder, T threshold, bool z, bool left = true, bool up = true, int times = 10, T ratio = 0, T radius = 5.0f) {
|
8334680a
Jiaming Guo
add square wave c...
|
1881
1882
1883
1884
1885
1886
|
int coef_up = (up) ? 1 : -1; // y coefficient
int coef_left = (left) ? 1 : -1; // x coefficient
int coef_z = (z) ? 1 : -1; // z coefficient
int inverse = 1; // inverse flag
stim::vec3<T> cor_v; // corner vertex
|
f4105b89
Jiaming Guo
add new function:...
|
1887
|
std::pair<stim::vec3<T>, stim::vec3<T>> tmp_bb;
|
8334680a
Jiaming Guo
add square wave c...
|
1888
|
stim::vec3<T> tmp_v;
|
f4105b89
Jiaming Guo
add new function:...
|
1889
|
if (feeder == 1)
|
70c0b942
Jiaming Guo
fixed bug when he...
|
1890
|
tmp_v = inlet[i].V[inlet[i].V.size() - 1];
|
f4105b89
Jiaming Guo
add new function:...
|
1891
|
else if (feeder == 0)
|
70c0b942
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fixed bug when he...
|
1892
|
tmp_v = outlet[i].V[outlet[i].V.size() - 1];
|
f4105b89
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add new function:...
|
1893
|
tmp_bb.first = tmp_v;
|
8334680a
Jiaming Guo
add square wave c...
|
1894
|
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1895
1896
1897
1898
1899
1900
1901
1902
1903
|
// pre-set fragments
if (ratio) {
T tmp_d, tmp_l; // back ups
tmp_d = desire_l;
tmp_l = origin_l;
cor_v = tmp_v + stim::vec3<T>(-coef_left * origin_l, 0, 0); // get the original corner vertex
desire_l = desire_l - origin_l * (1.0f - ratio / 1.0f);
origin_l = (T)origin_l * ratio / 1.0f;
|
b710cea4
Jiaming Guo
fixed saving imag...
|
1904
|
n = find_number_square(origin_l, desire_l, times);
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1905
1906
1907
1908
|
width = (T)origin_l / (2 * n); // updates
height = (desire_l - origin_l) / (2 * n);
|
057ea93b
Jiaming Guo
add flow velocity...
|
1909
1910
|
// there are cases that the fragment can not satisfy the requirement for width
if (width < times * radius || n == 0) { // check feasibility
|
4bb615eb
Jiaming Guo
fixed generating ...
|
1911
1912
|
ratio = 1.0f; // load original lengths
desire_l = tmp_d; // loading back-ups
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1913
1914
1915
|
origin_l = tmp_l;
std::cout << "Warning: current ratio is not feasible, use full original line." << std::endl;
|
b710cea4
Jiaming Guo
fixed saving imag...
|
1916
|
n = find_number_square(origin_l, desire_l, times);
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1917
1918
1919
|
width = (T)origin_l / (2 * n); // updates
height = (desire_l - origin_l) / (2 * n);
|
8334680a
Jiaming Guo
add square wave c...
|
1920
|
}
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1921
1922
1923
1924
1925
|
}
// check whether it needs 3D square-wave-like connections
if (height > threshold) { // enbale 3D connections
|
6332d1e7
Jiaming Guo
fixed warnings
|
1926
|
height = (T)((desire_l - (1 + 2 * n) * origin_l) / std::pow(2 * n, 2)); // compute new height in 3D structure
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1927
|
while (height > threshold) { // increase order to decrease height
|
8334680a
Jiaming Guo
add square wave c...
|
1928
1929
|
n++;
width = (T)(origin_l) / (2 * n);
|
6332d1e7
Jiaming Guo
fixed warnings
|
1930
|
height = (T)((desire_l - (1 + 2 * n) * origin_l) / std::pow(2 * n, 2));
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1931
|
// check whether it appears overlap, if it appears we choose last time height even if it is larger than threshold
|
8334680a
Jiaming Guo
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|
1932
1933
1934
|
if (width < times * radius) {
n--;
width = (T)(origin_l) / (2 * n);
|
6332d1e7
Jiaming Guo
fixed warnings
|
1935
|
height = (T)((desire_l - (1 + 2 * n) * origin_l) / std::pow(2 * n, 2));
|
8334680a
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|
1936
1937
1938
|
break;
}
}
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1939
1940
|
// check overlap in terms of height, has potential risk when both height and width are less than times * radius.
|
8334680a
Jiaming Guo
add square wave c...
|
1941
1942
1943
|
while (height < times * radius) {
n--;
width = (T)(origin_l) / (2 * n);
|
6332d1e7
Jiaming Guo
fixed warnings
|
1944
|
height = (T)((desire_l - (1 + 2 * n) * origin_l) / std::pow(2 * n, 2));
|
8334680a
Jiaming Guo
add square wave c...
|
1945
1946
|
}
|
4bb615eb
Jiaming Guo
fixed generating ...
|
1947
|
/// degenerated case, use original extending method
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1948
|
if (n == 0) {
|
4bb615eb
Jiaming Guo
fixed generating ...
|
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
|
height = (T)((desire_l - origin_l) / 2);
// "up"
tmp_v = tmp_v + stim::vec3<T>(0, coef_up * height, 0);
if (feeder == 1)
inlet[i].V.push_back(tmp_v);
else if (feeder == 0)
outlet[i].V.push_back(tmp_v);
// "left"
tmp_v = tmp_v + stim::vec3<T>(-coef_left * origin_l, 0, 0);
if (feeder == 1)
inlet[i].V.push_back(tmp_v);
else if (feeder == 0)
outlet[i].V.push_back(tmp_v);
|
b61addd8
Jiaming Guo
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|
1962
1963
|
}
|
8334680a
Jiaming Guo
add square wave c...
|
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
|
// cube-like structure construction
for (int j = 0; j < n; j++) {
// "up"
for (int k = 0; k < n; k++) {
// in
tmp_v = tmp_v + stim::vec3<T>(0, 0, coef_z * height);
if (feeder == 1)
inlet[i].V.push_back(tmp_v);
else if (feeder == 0)
outlet[i].V.push_back(tmp_v);
// "up"
tmp_v = tmp_v + stim::vec3<T>(0, inverse * coef_up * width, 0);
if (feeder == 1)
inlet[i].V.push_back(tmp_v);
else if (feeder == 0)
outlet[i].V.push_back(tmp_v);
// out
tmp_v = tmp_v + stim::vec3<T>(0, 0, -coef_z * height);
if (feeder == 1)
inlet[i].V.push_back(tmp_v);
else if (feeder == 0)
outlet[i].V.push_back(tmp_v);
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1986
|
// "up"
|
8334680a
Jiaming Guo
add square wave c...
|
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
|
tmp_v = tmp_v + stim::vec3<T>(0, inverse * coef_up * width, 0);
if (feeder == 1)
inlet[i].V.push_back(tmp_v);
else if (feeder == 0)
outlet[i].V.push_back(tmp_v);
}
// "left"
tmp_v = tmp_v + stim::vec3<T>(-coef_left * width, 0, 0);
if (feeder == 1)
inlet[i].V.push_back(tmp_v);
else if (feeder == 0)
outlet[i].V.push_back(tmp_v);
if (inverse == 1) // revert inverse
inverse = -1;
else
inverse = 1;
// "down"
for (int k = 0; k < n; k++) {
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2008
|
// in
|
8334680a
Jiaming Guo
add square wave c...
|
2009
2010
2011
2012
2013
|
tmp_v = tmp_v + stim::vec3<T>(0, 0, coef_z * height);
if (feeder == 1)
inlet[i].V.push_back(tmp_v);
else if (feeder == 0)
outlet[i].V.push_back(tmp_v);
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2014
|
// get the bounding box edge
|
f4105b89
Jiaming Guo
add new function:...
|
2015
2016
|
if (j == n - 1 && k == 0) // first time go "in"
tmp_bb.second = tmp_v;
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2017
|
// "down"
|
8334680a
Jiaming Guo
add square wave c...
|
2018
2019
2020
2021
2022
|
tmp_v = tmp_v + stim::vec3<T>(0, inverse * coef_up * width, 0);
if (feeder == 1)
inlet[i].V.push_back(tmp_v);
else if (feeder == 0)
outlet[i].V.push_back(tmp_v);
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2023
|
// out
|
8334680a
Jiaming Guo
add square wave c...
|
2024
2025
2026
2027
2028
|
tmp_v = tmp_v + stim::vec3<T>(0, 0, -coef_z * height);
if (feeder == 1)
inlet[i].V.push_back(tmp_v);
else if (feeder == 0)
outlet[i].V.push_back(tmp_v);
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2029
|
// "down"
|
8334680a
Jiaming Guo
add square wave c...
|
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
|
tmp_v = tmp_v + stim::vec3<T>(0, inverse * coef_up * width, 0);
if (feeder == 1)
inlet[i].V.push_back(tmp_v);
else if (feeder == 0)
outlet[i].V.push_back(tmp_v);
}
// "left"
tmp_v = tmp_v + stim::vec3<T>(-coef_left * width, 0, 0);
if (feeder == 1)
inlet[i].V.push_back(tmp_v);
else if (feeder == 0)
outlet[i].V.push_back(tmp_v);
if (inverse == 1) // revert inverse
inverse = -1;
else
inverse = 1;
}
// if use fragment to do square wave connection, need to push_back the corner vertex
|
f4105b89
Jiaming Guo
add new function:...
|
2050
|
if (ratio > 0.0f && ratio < 1.0f) {
|
8334680a
Jiaming Guo
add square wave c...
|
2051
2052
2053
2054
2055
2056
|
if (feeder == 1)
inlet[i].V.push_back(cor_v);
else if (feeder == 0)
outlet[i].V.push_back(cor_v);
}
}
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2057
|
// use 2D square-wave-like connections
|
8334680a
Jiaming Guo
add square wave c...
|
2058
|
else {
|
70c0b942
Jiaming Guo
fixed bug when he...
|
2059
2060
2061
|
if (height < times * radius) { // if height is too small, decrease n and re-calculate height and width
height = times * radius;
T need_l = desire_l - origin_l;
|
6332d1e7
Jiaming Guo
fixed warnings
|
2062
|
n = (int)(need_l / (2 * height));
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2063
|
if (n == 0) // degenerated case
|
70c0b942
Jiaming Guo
fixed bug when he...
|
2064
2065
2066
2067
|
n = 1;
height = need_l / (2 * n);
width = origin_l / (2 * n);
}
|
8334680a
Jiaming Guo
add square wave c...
|
2068
2069
|
for (int j = 0; j < n; j++) {
|
f4105b89
Jiaming Guo
add new function:...
|
2070
|
// up
|
8334680a
Jiaming Guo
add square wave c...
|
2071
2072
2073
2074
2075
2076
|
tmp_v = tmp_v + stim::vec3<T>(0, coef_up * height, 0);
if (feeder == 1)
inlet[i].V.push_back(tmp_v);
else if (feeder == 0)
outlet[i].V.push_back(tmp_v);
|
f4105b89
Jiaming Guo
add new function:...
|
2077
|
// left
|
8334680a
Jiaming Guo
add square wave c...
|
2078
2079
2080
2081
2082
|
tmp_v = tmp_v + stim::vec3<T>(-coef_left * width, 0, 0);
if (feeder == 1)
inlet[i].V.push_back(tmp_v);
else if (feeder == 0)
outlet[i].V.push_back(tmp_v);
|
f4105b89
Jiaming Guo
add new function:...
|
2083
2084
|
if (j == n - 1)
tmp_bb.second = tmp_v;
|
8334680a
Jiaming Guo
add square wave c...
|
2085
|
|
f4105b89
Jiaming Guo
add new function:...
|
2086
|
// down
|
8334680a
Jiaming Guo
add square wave c...
|
2087
2088
2089
2090
2091
2092
|
tmp_v = tmp_v + stim::vec3<T>(0, -coef_up * height, 0);
if (feeder == 1)
inlet[i].V.push_back(tmp_v);
else if (feeder == 0)
outlet[i].V.push_back(tmp_v);
|
f4105b89
Jiaming Guo
add new function:...
|
2093
|
// left
|
8334680a
Jiaming Guo
add square wave c...
|
2094
2095
2096
2097
2098
2099
|
tmp_v = tmp_v + stim::vec3<T>(-coef_left * width, 0, 0);
if (feeder == 1)
inlet[i].V.push_back(tmp_v);
else if (feeder == 0)
outlet[i].V.push_back(tmp_v);
}
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2100
2101
2102
2103
2104
2105
2106
|
// if use fragment to do square wave connection, need to push_back the corner vertex
if (ratio > 0.0f && ratio < 1.0f) {
if (feeder == 1)
inlet[i].V.push_back(cor_v);
else if (feeder == 0)
outlet[i].V.push_back(cor_v);
}
|
8334680a
Jiaming Guo
add square wave c...
|
2107
|
}
|
f4105b89
Jiaming Guo
add new function:...
|
2108
2109
2110
2111
|
if (feeder == 1)
inbb[i] = tmp_bb;
else if (feeder == 0)
outbb[i] = tmp_bb;
|
8334680a
Jiaming Guo
add square wave c...
|
2112
2113
|
}
|
9191c39e
Jiaming Guo
first version of ...
|
2114
|
// automatically modify bridge to make it feasible
|
6332d1e7
Jiaming Guo
fixed warnings
|
2115
|
void modify_synthetic_connection(T viscosity, T rou, bool H, T threshold, T &in, T &out, int times = 10, T ratio = 0.0f, T radius = 5.0f) {
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
2116
2117
2118
|
glDeleteLists(dlist, 1); // delete display list for modify
glDeleteLists(dlist + 1, 1);
|
f4105b89
Jiaming Guo
add new function:...
|
2119
|
|
8334680a
Jiaming Guo
add square wave c...
|
2120
|
// because of radius change at the port vertex, there will be a pressure drop at that port
|
9191c39e
Jiaming Guo
first version of ...
|
2121
2122
2123
2124
2125
2126
2127
2128
|
// it follows the bernoulli equation
// p1 + 1/2*rou*v1^2 + rou*g*h1 = p2 + 1/2*rou*v2^2 + rou*g*h2
// Q1 = Q2 -> v1*r1^2 = v2*r2^2
std::vector<T> new_pressure = pressure;
unsigned idx;
for (unsigned i = 0; i < pendant_vertex.size(); i++) {
idx = pendant_vertex[i];
T tmp_v = get_velocity(idx); // velocity at that pendant vertex
|
8334680a
Jiaming Guo
add square wave c...
|
2129
|
T ar = get_radius(idx) / radius;
|
9191c39e
Jiaming Guo
first version of ...
|
2130
2131
2132
2133
2134
2135
2136
2137
2138
|
new_pressure[idx] = pressure[idx] + 1.0f / 2.0f * rou * std::pow(tmp_v, 2) * (1.0f - std::pow(ar, 4));
}
// increase r -> increase Q -> decrease l
// find maximum pressure inlet port
T source_pressure = FLT_MIN; // source pressure
unsigned inlet_index;
T tmp_p;
for (unsigned i = 0; i < inlet.size(); i++) {
|
8334680a
Jiaming Guo
add square wave c...
|
2139
|
tmp_p = new_pressure[inlet[i].v[0]] + ((8 * viscosity * inlet[i].l * inlet[i].Q) / ((float)stim::PI * std::pow(radius, 4)));
|
9191c39e
Jiaming Guo
first version of ...
|
2140
2141
2142
2143
2144
|
if (tmp_p > source_pressure) {
source_pressure = tmp_p;
inlet_index = i;
}
}
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2145
|
Ps = source_pressure;
|
9191c39e
Jiaming Guo
first version of ...
|
2146
|
|
8334680a
Jiaming Guo
add square wave c...
|
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
|
// find minimum pressure outlet port
T end_pressure = FLT_MAX;
unsigned outlet_index;
for (unsigned i = 0; i < outlet.size(); i++) {
tmp_p = new_pressure[outlet[i].v[0]] - ((8 * viscosity * outlet[i].l * outlet[i].Q) / ((float)stim::PI * std::pow(radius, 4)));
if (tmp_p < end_pressure) {
end_pressure = tmp_p;
outlet_index = i;
}
}
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2157
|
Pe = end_pressure;
|
9191c39e
Jiaming Guo
first version of ...
|
2158
|
|
8334680a
Jiaming Guo
add square wave c...
|
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
|
// automatically modify inlet bridge using Hilbert curves
if (H) {
bool upper = false; // flag indicates the whether the port is upper than main feeder
bool invert = false; // there are two version of hilbert curve depends on starting position with respect to the cup
T new_l;
stim::vec3<T> bus_v; // the port point on the bus
stim::vec3<T> mid_v; // the original corner point
stim::vec3<T> tmp_v; // the pendant point
int order = 0; // order of hilbert curve (iteration)
for (unsigned i = 0; i < inlet.size(); i++) {
if (i != inlet_index) {
new_l = (source_pressure - new_pressure[inlet[i].v[0]]) * ((float)stim::PI * std::pow(radius, 4)) / (8 * viscosity * inlet[i].Q);
|
9191c39e
Jiaming Guo
first version of ...
|
2171
|
|
8334680a
Jiaming Guo
add square wave c...
|
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
|
if (inlet[i].V[2][1] > main_feeder[0][1]) { // check out upper side of lower side
upper = true;
invert = false;
}
else {
upper = false;
invert = true;
}
T origin_l = (inlet[i].V[1] - inlet[i].V[2]).len();
T desire_l = new_l - (inlet[i].V[0] - inlet[i].V[1]).len();
find_hilbert_order(origin_l, desire_l, order);
bus_v = inlet[i].V[0];
mid_v = inlet[i].V[1];
tmp_v = inlet[i].V[2];
inlet[i].V.clear();
inlet[i].V.push_back(tmp_v);
inlet[i].l = new_l;
if (desire_l - origin_l < 2 * radius) { // do not need to use hilbert curve, just increase the length by draging out
T d = new_l - inlet[i].l;
stim::vec3<T> corner = stim::vec3<T>(tmp_v[0], tmp_v[1] + d / 2.0f * (tmp_v[1] > main_feeder[0][1] ? 1 : -1), tmp_v[2]);
inlet[i].V.push_back(corner);
corner = stim::vec3<T>(mid_v[0], mid_v[1] + d / 2.0f * (tmp_v[1] > main_feeder[0][1] ? 1 : -1), mid_v[2]);
inlet[i].V.push_back(corner);
|
6765b32b
Jiaming Guo
add hilbert curve
|
2198
2199
|
inlet[i].V.push_back(bus_v);
}
|
8334680a
Jiaming Guo
add square wave c...
|
2200
|
else {
|
6332d1e7
Jiaming Guo
fixed warnings
|
2201
2202
|
T fragment = (T)((desire_l - origin_l) / ((std::pow(4, order) - 1) / (std::pow(2, order) - 1) - 1)); // the length of the opening of cup
T dl = (T)(fragment / (std::pow(2, order) - 1)); // unit cup length
|
6765b32b
Jiaming Guo
add hilbert curve
|
2203
|
|
8334680a
Jiaming Guo
add square wave c...
|
2204
2205
2206
2207
2208
|
if (dl > 2 * radius) { // if the radius is feasible
if (upper)
hilbert_curve(i, &tmp_v[0], order, dl, 1, invert, DOWN);
else
hilbert_curve(i, &tmp_v[0], order, dl, 1, invert, UP);
|
6765b32b
Jiaming Guo
add hilbert curve
|
2209
|
|
8334680a
Jiaming Guo
add square wave c...
|
2210
2211
2212
2213
2214
2215
2216
|
if (tmp_v[0] != mid_v[0])
inlet[i].V.push_back(mid_v);
inlet[i].V.push_back(bus_v);
}
else { // if the radius is not feasible
int count = 1;
while (dl <= 2 * radius) {
|
6332d1e7
Jiaming Guo
fixed warnings
|
2217
|
dl = (T)(origin_l / (std::pow(2, order - count) - 1));
|
8334680a
Jiaming Guo
add square wave c...
|
2218
2219
2220
2221
2222
2223
2224
2225
2226
|
count++;
}
count--;
if (upper)
hilbert_curve(i, &tmp_v[0], order - count, dl, 1, invert, DOWN);
else
hilbert_curve(i, &tmp_v[0], order - count, dl, 1, invert, UP);
|
6332d1e7
Jiaming Guo
fixed warnings
|
2227
|
desire_l -= (T)(origin_l * ((std::pow(4, order - count) - 1) / (std::pow(2, order - count) - 1)));
|
8334680a
Jiaming Guo
add square wave c...
|
2228
2229
2230
2231
2232
|
origin_l = (bus_v - mid_v).len();
desire_l += origin_l;
find_hilbert_order(origin_l, desire_l, order);
|
6332d1e7
Jiaming Guo
fixed warnings
|
2233
2234
|
fragment = (T)((desire_l - origin_l) / ((std::pow(4, order) - 1) / (std::pow(2, order) - 1) - 1));
dl = (T)(fragment / (std::pow(2, order) - 1));
|
8334680a
Jiaming Guo
add square wave c...
|
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
|
if (dl < 2 * radius)
std::cout << "infeasible connection between inlets!" << std::endl;
if (upper)
hilbert_curve(i, &tmp_v[0], order, dl, 1, !invert, LEFT);
else
hilbert_curve(i, &tmp_v[0], order, dl, 1, !invert, RIGHT);
if (tmp_v[1] != bus_v[1])
inlet[i].V.push_back(bus_v);
}
}
std::reverse(inlet[i].V.begin(), inlet[i].V.end()); // from bus to pendant vertex
}
}
|
6765b32b
Jiaming Guo
add hilbert curve
|
2250
|
|
8334680a
Jiaming Guo
add square wave c...
|
2251
2252
2253
2254
|
// automatically modify outlet bridge to make it feasible
for (unsigned i = 0; i < outlet.size(); i++) {
if (i != outlet_index) {
new_l = (new_pressure[outlet[i].v[0]] - end_pressure) * ((float)stim::PI * std::pow(radius, 4)) / (8 * viscosity * outlet[i].Q);
|
6765b32b
Jiaming Guo
add hilbert curve
|
2255
|
|
8334680a
Jiaming Guo
add square wave c...
|
2256
2257
2258
2259
2260
2261
2262
2263
|
if (outlet[i].V[2][1] > main_feeder[1][1]) {
upper = true;
invert = true;
}
else {
upper = false;
invert = false;
}
|
6765b32b
Jiaming Guo
add hilbert curve
|
2264
|
|
8334680a
Jiaming Guo
add square wave c...
|
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
|
T origin_l = (outlet[i].V[1] - outlet[i].V[2]).len();
T desire_l = new_l - (outlet[i].V[0] - outlet[i].V[1]).len();
find_hilbert_order(origin_l, desire_l, order);
bus_v = outlet[i].V[0];
mid_v = outlet[i].V[1];
tmp_v = outlet[i].V[2];
outlet[i].V.clear();
outlet[i].V.push_back(tmp_v);
outlet[i].l = new_l;
if (desire_l - origin_l < 2 * radius) { // do not need to use hilbert curve, just increase the length by draging out
T d = new_l - outlet[i].l;
stim::vec3<T> corner = stim::vec3<T>(tmp_v[0], tmp_v[1] + d / 2.0f * (tmp_v[1] > main_feeder[0][1] ? 1 : -1), tmp_v[2]);
outlet[i].V.push_back(corner);
corner = stim::vec3<T>(mid_v[0], mid_v[1] + d / 2.0f * (tmp_v[1] > main_feeder[0][1] ? 1 : -1), mid_v[2]);
outlet[i].V.push_back(corner);
outlet[i].V.push_back(bus_v);
}
else {
|
6332d1e7
Jiaming Guo
fixed warnings
|
2285
2286
|
T fragment = (T)((desire_l - origin_l) / ((std::pow(4, order) - 1) / (std::pow(2, order) - 1) - 1)); // the length of the opening of cup
T dl = (T)(fragment / (std::pow(2, order) - 1)); // unit cup length
|
6765b32b
Jiaming Guo
add hilbert curve
|
2287
|
|
8334680a
Jiaming Guo
add square wave c...
|
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
|
if (dl > 2 * radius) { // if the radius is feasible
if (upper)
hilbert_curve(i, &tmp_v[0], order, dl, 0, invert, DOWN);
else
hilbert_curve(i, &tmp_v[0], order, dl, 0, invert, UP);
if (tmp_v[0] != mid_v[0])
outlet[i].V.push_back(mid_v);
outlet[i].V.push_back(bus_v);
}
else { // if the radius is not feasible
int count = 1;
while (dl <= 2 * radius) {
|
6332d1e7
Jiaming Guo
fixed warnings
|
2301
|
dl = (T)(origin_l / (std::pow(2, order - count) - 1));
|
8334680a
Jiaming Guo
add square wave c...
|
2302
2303
2304
2305
2306
2307
2308
2309
2310
|
count++;
}
count--;
if (upper)
hilbert_curve(i, &tmp_v[0], order - count, dl, 0, invert, DOWN);
else
hilbert_curve(i, &tmp_v[0], order - count, dl, 0, invert, UP);
|
6332d1e7
Jiaming Guo
fixed warnings
|
2311
|
desire_l -= (T)(origin_l * ((std::pow(4, order - count) - 1) / (std::pow(2, order - count) - 1)));
|
8334680a
Jiaming Guo
add square wave c...
|
2312
2313
2314
2315
2316
|
origin_l = (bus_v - mid_v).len();
desire_l += origin_l;
find_hilbert_order(origin_l, desire_l, order);
|
6332d1e7
Jiaming Guo
fixed warnings
|
2317
2318
|
fragment = (T)((desire_l - origin_l) / ((std::pow(4, order) - 1) / (std::pow(2, order) - 1) - 1));
dl = (T)(fragment / (std::pow(2, order) - 1));
|
8334680a
Jiaming Guo
add square wave c...
|
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
|
if (dl < 2 * radius)
std::cout << "infeasible connection between outlets!" << std::endl;
if (upper)
hilbert_curve(i, &tmp_v[0], order, dl, 0, !invert, LEFT);
else
hilbert_curve(i, &tmp_v[0], order, dl, 0, !invert, RIGHT);
if (tmp_v[1] != bus_v[1])
outlet[i].V.push_back(bus_v);
}
|
6765b32b
Jiaming Guo
add hilbert curve
|
2330
|
}
|
8334680a
Jiaming Guo
add square wave c...
|
2331
|
std::reverse(outlet[i].V.begin(), outlet[i].V.end());
|
6765b32b
Jiaming Guo
add hilbert curve
|
2332
|
}
|
9191c39e
Jiaming Guo
first version of ...
|
2333
2334
|
}
}
|
8334680a
Jiaming Guo
add square wave c...
|
2335
2336
2337
|
// automatically modify inlet bridge using square shape constructions
else {
bool upper; // flag indicates the connection is upper than the bus
|
f4105b89
Jiaming Guo
add new function:...
|
2338
|
bool z; // flag indicates the connection direction along z-axis
|
8334680a
Jiaming Guo
add square wave c...
|
2339
2340
2341
2342
2343
2344
|
T new_l; // new length
stim::vec3<T> bus_v; // the port point on the bus
stim::vec3<T> mid_v; // the original corner point
stim::vec3<T> tmp_v; // the pendant point
int n;
T width, height; // width and height of the square
|
f4105b89
Jiaming Guo
add new function:...
|
2345
2346
|
inbb.resize(inlet.size()); // resize bounding box of inlets/outlets connections
outbb.resize(outlet.size());
|
9191c39e
Jiaming Guo
first version of ...
|
2347
|
|
8334680a
Jiaming Guo
add square wave c...
|
2348
2349
2350
|
for (unsigned i = 0; i < inlet.size(); i++) {
if (i != inlet_index) {
new_l = (source_pressure - new_pressure[inlet[i].v[0]]) * ((float)stim::PI * std::pow(radius, 4)) / (8 * viscosity * inlet[i].Q); // calculate the new length of the connection
|
9191c39e
Jiaming Guo
first version of ...
|
2351
|
|
8334680a
Jiaming Guo
add square wave c...
|
2352
2353
|
bus_v = inlet[i].V[0];
mid_v = inlet[i].V[1];
|
70c0b942
Jiaming Guo
fixed bug when he...
|
2354
|
tmp_v = inlet[i].V[2]; // not always pendant vertex
|
6765b32b
Jiaming Guo
add hilbert curve
|
2355
|
|
8334680a
Jiaming Guo
add square wave c...
|
2356
2357
2358
2359
|
if (inlet[i].V[2][1] > main_feeder[0][1]) // check out upper side of lower side
upper = true;
else
upper = false;
|
9191c39e
Jiaming Guo
first version of ...
|
2360
|
|
8334680a
Jiaming Guo
add square wave c...
|
2361
2362
2363
2364
2365
2366
2367
|
if (inlet[i].V[2][2] > main_feeder[0][2])
z = true;
else
z = false;
T origin_l = (inlet[i].V[1] - inlet[i].V[2]).len();
T desire_l = new_l - (inlet[i].V[0] - inlet[i].V[1]).len();
|
70c0b942
Jiaming Guo
fixed bug when he...
|
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
|
if (inlet[i].V.size() != 3) {
desire_l = new_l - (inlet[i].V[0] - inlet[i].V[1]).len() - (inlet[i].V[2] - inlet[i].V[3]).len();
stim::vec3<T> tmp = inlet[i].V[3];
inlet[i].V.clear();
inlet[i].V.push_back(tmp);
inlet[i].V.push_back(tmp_v);
}
else {
inlet[i].V.clear();
inlet[i].V.push_back(tmp_v);
}
|
8334680a
Jiaming Guo
add square wave c...
|
2379
2380
|
inlet[i].l = new_l;
|
6332d1e7
Jiaming Guo
fixed warnings
|
2381
|
n = find_number_square(origin_l, desire_l, times);
|
8334680a
Jiaming Guo
add square wave c...
|
2382
2383
2384
2385
|
width = (T)origin_l / (2 * n);
height = (desire_l - origin_l) / (2 * n);
|
0224d2ef
Jiaming Guo
fixed square wave...
|
2386
|
build_square_connection(i, width, height, origin_l, desire_l, n, 1, threshold, z, true, upper, 2, ratio);
|
8334680a
Jiaming Guo
add square wave c...
|
2387
2388
2389
|
inlet[i].V.push_back(bus_v);
std::reverse(inlet[i].V.begin(), inlet[i].V.end()); // from bus to pendant vertex
|
6765b32b
Jiaming Guo
add hilbert curve
|
2390
|
}
|
f4105b89
Jiaming Guo
add new function:...
|
2391
2392
2393
2394
|
else {
inbb[i].first = inlet[i].V[2];
inbb[i].second = inlet[i].V[1];
}
|
8334680a
Jiaming Guo
add square wave c...
|
2395
2396
2397
2398
2399
|
}
for (unsigned i = 0; i < outlet.size(); i++) {
if (i != outlet_index) {
new_l = (new_pressure[outlet[i].v[0]] - end_pressure) * ((float)stim::PI * std::pow(radius, 4)) / (8 * viscosity * outlet[i].Q); // calculate the new length of the connection
|
6765b32b
Jiaming Guo
add hilbert curve
|
2400
|
|
8334680a
Jiaming Guo
add square wave c...
|
2401
2402
2403
|
bus_v = outlet[i].V[0];
mid_v = outlet[i].V[1];
tmp_v = outlet[i].V[2];
|
6765b32b
Jiaming Guo
add hilbert curve
|
2404
|
|
8334680a
Jiaming Guo
add square wave c...
|
2405
2406
2407
2408
|
if (outlet[i].V[2][1] > main_feeder[1][1]) // check out upper side of lower side
upper = true;
else
upper = false;
|
6765b32b
Jiaming Guo
add hilbert curve
|
2409
|
|
8334680a
Jiaming Guo
add square wave c...
|
2410
2411
2412
2413
|
if (outlet[i].V[2][2] > main_feeder[1][2])
z = true;
else
z = false;
|
6765b32b
Jiaming Guo
add hilbert curve
|
2414
|
|
8334680a
Jiaming Guo
add square wave c...
|
2415
2416
|
T origin_l = (outlet[i].V[1] - outlet[i].V[2]).len();
T desire_l = new_l - (outlet[i].V[0] - outlet[i].V[1]).len();
|
70c0b942
Jiaming Guo
fixed bug when he...
|
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
|
if (outlet[i].V.size() != 3) {
desire_l = new_l - (outlet[i].V[0] - outlet[i].V[1]).len() - (outlet[i].V[2] - outlet[i].V[3]).len();
stim::vec3<T> tmp = outlet[i].V[3];
outlet[i].V.clear();
outlet[i].V.push_back(tmp);
outlet[i].V.push_back(tmp_v);
}
else {
outlet[i].V.clear();
outlet[i].V.push_back(tmp_v);
}
|
8334680a
Jiaming Guo
add square wave c...
|
2428
|
outlet[i].l = new_l;
|
6765b32b
Jiaming Guo
add hilbert curve
|
2429
|
|
6332d1e7
Jiaming Guo
fixed warnings
|
2430
|
n = find_number_square(origin_l, desire_l, times);
|
6765b32b
Jiaming Guo
add hilbert curve
|
2431
|
|
8334680a
Jiaming Guo
add square wave c...
|
2432
2433
2434
|
width = (T)origin_l / (2 * n);
height = (desire_l - origin_l) / (2 * n);
|
0224d2ef
Jiaming Guo
fixed square wave...
|
2435
|
build_square_connection(i, width, height, origin_l, desire_l, n, 0, threshold, z, false, upper, 2, ratio);
|
8334680a
Jiaming Guo
add square wave c...
|
2436
2437
2438
|
outlet[i].V.push_back(bus_v);
std::reverse(outlet[i].V.begin(), outlet[i].V.end()); // from bus to pendant vertex
|
6765b32b
Jiaming Guo
add hilbert curve
|
2439
|
}
|
f4105b89
Jiaming Guo
add new function:...
|
2440
2441
2442
2443
|
else {
outbb[i].first = outlet[i].V[2];
outbb[i].second = outlet[i].V[1];
}
|
9191c39e
Jiaming Guo
first version of ...
|
2444
2445
|
}
}
|
f4105b89
Jiaming Guo
add new function:...
|
2446
|
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2447
2448
2449
2450
2451
2452
2453
|
// save in-/out- volume flow rate
in = out = 0.0f;
for (unsigned i = 0; i < inlet.size(); i++)
in += inlet[i].Q;
for (unsigned i = 0; i < outlet.size(); i++)
out += outlet[i].Q;
|
f4105b89
Jiaming Guo
add new function:...
|
2454
|
check_special_connection(); // check special connections
|
9191c39e
Jiaming Guo
first version of ...
|
2455
2456
|
}
|
f4105b89
Jiaming Guo
add new function:...
|
2457
2458
2459
|
/// check current connections to find overlapping
// phase 1 check -> direct connection intersection
void check_direct_connection() {
|
9191c39e
Jiaming Guo
first version of ...
|
2460
|
|
6332d1e7
Jiaming Guo
fixed warnings
|
2461
|
size_t num;
|
f4105b89
Jiaming Guo
add new function:...
|
2462
|
// check inlet
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2463
2464
|
num = inlet.size(); // get the number of inlets
inlet_feasibility.resize(num, true); // initialization
|
f4105b89
Jiaming Guo
add new function:...
|
2465
2466
2467
|
for (unsigned i = 0; i < num; i++) {
for (unsigned j = 0; j < num; j++) {
if (i != j) {
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2468
|
if (inlet[i].V[0][1] == inlet[j].V[0][1]) {
|
ce1a6f5e
Jiaming Guo
add functions for...
|
2469
|
if ((inlet[i].V[1][0] >= inlet[j].V[1][0]) && (fabs(inlet[i].V[1][1]) >= fabs(inlet[j].V[1][1])) && (((inlet[i].V[1][1] - main_feeder[0][1]) * (inlet[j].V[1][1] - main_feeder[0][1])) > 0 ? 1 : 0) && inlet[i].V[1][2] == inlet[j].V[1][2]) {
|
f4105b89
Jiaming Guo
add new function:...
|
2470
2471
2472
|
inlet_feasibility[i] = false;
break;
}
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2473
2474
|
else
inlet_feasibility[i] = true;
|
f4105b89
Jiaming Guo
add new function:...
|
2475
|
}
|
f4105b89
Jiaming Guo
add new function:...
|
2476
|
}
|
9191c39e
Jiaming Guo
first version of ...
|
2477
2478
|
}
}
|
f4105b89
Jiaming Guo
add new function:...
|
2479
2480
2481
2482
2483
2484
2485
|
// check outlet
num = outlet.size();
outlet_feasibility.resize(num, true);
for (unsigned i = 0; i < num; i++) {
for (unsigned j = 0; j < num; j++) {
if (i != j) {
if (outlet[i].V[0][2] == outlet[j].V[0][2]) {
|
ce1a6f5e
Jiaming Guo
add functions for...
|
2486
|
if ((outlet[i].V[1][0] <= outlet[j].V[1][0]) && (fabs(outlet[i].V[1][1]) >= fabs(outlet[j].V[1][1])) && (((outlet[i].V[1][1] - main_feeder[1][1]) * (outlet[j].V[1][1] - main_feeder[1][1])) > 0 ? 1 : 0) && outlet[i].V[1][2] == outlet[j].V[1][2]) {
|
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|
outlet_feasibility[i] = false;
break;
}
}
else
outlet_feasibility[i] = true;
}
}
}
}
// phase 2 check -> special connection intersection
void check_special_connection(T radius = 5.0f) {
// temp AABB centers and halfwidths
stim::vec3<T> c1, c2;
stim::vec3<T> r1, r2;
// inlets' special connections checking
for (unsigned i = 0; i < inbb.size(); i++) {
for (unsigned j = 0; j < inbb.size(); j++) {
if (j != i) {
c1 = stim::vec3<T>((inbb[i].first + inbb[i].second) / 2);
c2 = stim::vec3<T>((inbb[j].first + inbb[j].second) / 2);
for (unsigned k = 0; k < 3; k++) {
r1[k] = fabs(inbb[i].first[k] - inbb[i].second[k]) / 2;
r2[k] = fabs(inbb[j].first[k] - inbb[j].second[k]) / 2;
}
// test AABBAABB
if (fabs(c1[0] - c2[0]) > (r1[0] + r2[0] + 2 * radius) || fabs(c1[1] - c2[1]) > (r1[1] + r2[1] + 2 * radius) || fabs(c1[2] - c2[2]) > (r1[2] + r2[2] + 2 * radius))
inlet_feasibility[i] = true;
else
inlet_feasibility[i] = false;
}
}
}
// outlets' special connections checking
for (unsigned i = 0; i < outbb.size(); i++) {
for (unsigned j = 0; j < outbb.size(); j++) {
if (j != i) {
c1 = stim::vec3<T>((outbb[i].first + outbb[i].second) / 2);
c2 = stim::vec3<T>((outbb[j].first + outbb[j].second) / 2);
for (unsigned k = 0; k < 3; k++) {
r1[k] = fabs(outbb[i].first[k] - outbb[i].second[k]) / 2;
r2[k] = fabs(outbb[j].first[k] - outbb[j].second[k]) / 2;
}
// test AABBAABB
if (fabs(c1[0] - c2[0]) > (r1[0] + r2[0] + 2 * radius) || fabs(c1[1] - c2[1]) > (r1[1] + r2[1] + 2 * radius) || fabs(c1[2] - c2[2]) > (r1[2] + r2[2] + 2 * radius))
outlet_feasibility[i] = true;
else
outlet_feasibility[i] = false;
}
}
}
}
// clear synthetic connections
void clear_synthetic_connection() {
// restore direct synthetic connecions
T l = 0.0f;
for (unsigned i = 0; i < inlet.size(); i++) {
inlet[i].V.clear();
for (unsigned j = 0; j < in_backup[i].size(); j++) {
inlet[i].V.push_back(in_backup[i][j]);
if (j != in_backup[i].size() - 1)
l += (in_backup[i][j + 1] - in_backup[i][j]).len();
}
inlet[i].l = l;
l = 0.0f;
}
for (unsigned i = 0; i < outlet.size(); i++) {
outlet[i].V.clear();
for (unsigned j = 0; j < out_backup[i].size(); j++) {
outlet[i].V.push_back(out_backup[i][j]);
if (j != out_backup[i].size() - 1)
l += (out_backup[i][j + 1] - out_backup[i][j]).len();
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|
}
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outlet[i].l = l;
l = 0.0f;
|
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|
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|
}
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|
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|
// clear up inlets/outlets connection bounding box
inbb.clear();
outbb.clear();
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|
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|
}
|
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Jiaming Guo
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|
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|
// back up direct synthetic connection whenever modified
void backup() {
in_backup.clear();
out_backup.clear();
// back up direct synthetic connecions
std::vector<typename stim::vec3<T> > V;
for (unsigned i = 0; i < inlet.size(); i++) {
for (unsigned j = 0; j < inlet[i].V.size(); j++) {
V.push_back(inlet[i].V[j]);
}
in_backup.push_back(V);
V.clear();
}
for (unsigned i = 0; i < outlet.size(); i++) {
for (unsigned j = 0; j < outlet[i].V.size(); j++) {
V.push_back(outlet[i].V[j]);
}
out_backup.push_back(V);
V.clear();
}
}
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Jiaming Guo
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|
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|
/// adjustment in order to match microfluidics experiments
void adjust(T in, T out, T &Rt, T nQ, T viscosity, T radius = 5.0f) {
// compute total resistance
Rt = (Ps - Pe) / in;
Pe = 0.0f;
Ps = Rt * nQ;
|
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|
2606
|
|
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Jiaming Guo
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|
2607
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|
// adjust synthetic connections velocity flow rate. (linear scale)
T k = nQ / in; // linear factor
for (unsigned i = 0; i < inlet.size(); i++) {
inlet[i].Q *= k;
input[i].third *= k;
}
for (unsigned i = 0; i < outlet.size(); i++) {
outlet[i].Q *= k;
output[i].third *= k;
}
/// simulate inner network flow
// clear up initialized pressure
P.resize(num_vertex);
for (unsigned i = 0; i < pendant_vertex.size(); i++) {
unsigned index = UINT_MAX;
for (unsigned j = 0; j < inlet.size(); j++) {
if (inlet[j].v[0] == pendant_vertex[i]) {
index = j;
break;
}
}
if (index != UINT_MAX) {
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Jiaming Guo
fixed warnings
|
2630
|
P[inlet[index].v[0]] = (T)(Ps - (8 * viscosity * inlet[index].l * inlet[index].Q / (stim::PI * std::pow(radius, 4))));
|
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Jiaming Guo
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|
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|
}
}
for (unsigned i = 0; i < pendant_vertex.size(); i++) {
unsigned index = UINT_MAX;
for (unsigned j = 0; j < outlet.size(); j++) {
if (outlet[j].v[0] == pendant_vertex[i]) {
index = j;
break;
}
}
if (index != UINT_MAX) {
|
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Jiaming Guo
fixed warnings
|
2643
|
P[outlet[index].v[0]] = (T)(Pe + (8 * viscosity * outlet[index].l * outlet[index].Q / (stim::PI * std::pow(radius, 4))));
|
b61addd8
Jiaming Guo
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|
2644
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2660
|
}
}
// clear up previous simulation except synthetic connection parts
for (unsigned i = 0; i < num_vertex; i++) {
QQ[i] = 0;
pressure[i] = 0;
for (unsigned j = 0; j < num_vertex; j++) {
C[i][j] = 0;
}
}
// re-simulation
solve_flow(viscosity);
}
/// make full-synthetic binary image stack
|
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|
2661
|
// prepare for image stack
|
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Jiaming Guo
fixed generating ...
|
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|
void preparation(T &Xl, T &Xr, T &Yt, T &Yb, T &Z, bool prototype = false, T length = 40.0f, T height = 10.0f, T radius = 5.0f, T scale = 1.0f) {
|
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first version of ...
|
2663
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|
8334680a
Jiaming Guo
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|
2664
|
T max_radius = 0.0f;
|
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|
2665
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|
T top = FLT_MIN;
T bottom = FLT_MAX;
// clear up last time result
A.clear();
B.clear();
CU.clear();
// firstly push back the original network
stim::sphere<T> new_sphere;
stim::cone<T> new_cone;
stim::cuboid<T> new_cuboid;
// take every source bus as cuboid
new_cuboid.c = main_feeder[0];
new_cuboid.l = length;
new_cuboid.w = bb.B[2] - bb.A[2] + 10.0f;
new_cuboid.h = height;
CU.push_back(new_cuboid);
new_cuboid.c = main_feeder[1];
CU.push_back(new_cuboid);
// take every point as sphere, every line as cone
|
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Jiaming Guo
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|
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|
if (!prototype) {
for (unsigned i = 0; i < num_edge; i++) {
for (unsigned j = 0; j < E[i].size(); j++) {
new_sphere.c = E[i][j];
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2692
|
new_sphere.r = E[i].r(j) * scale;
|
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Jiaming Guo
add adjustment fe...
|
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|
A.push_back(new_sphere);
if (j != E[i].size() - 1) {
new_cone.c1 = E[i][j];
new_cone.c2 = E[i][j + 1];
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2697
2698
|
new_cone.r1 = E[i].r(j) * scale;
new_cone.r2 = E[i].r(j + 1) * scale;
|
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Jiaming Guo
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|
2699
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|
B.push_back(new_cone);
}
|
9191c39e
Jiaming Guo
first version of ...
|
2701
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|
}
}
}
|
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Jiaming Guo
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|
2704
|
|
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|
2705
2706
|
// secondly push back outside connection
for (unsigned i = 0; i < inlet.size(); i++) {
|
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Jiaming Guo
add hilbert curve
|
2707
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|
for (unsigned j = 1; j < inlet[i].V.size() - 1; j++) {
new_sphere.c = inlet[i].V[j];
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2709
|
new_sphere.r = inlet[i].r * scale;
|
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Jiaming Guo
first version of ...
|
2710
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|
A.push_back(new_sphere);
}
|
9191c39e
Jiaming Guo
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|
2712
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|
}
for (unsigned i = 0; i < outlet.size(); i++) {
|
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Jiaming Guo
add hilbert curve
|
2714
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|
for (unsigned j = 1; j < outlet[i].V.size() - 1; j++) {
new_sphere.c = outlet[i].V[j];
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2716
|
new_sphere.r = outlet[i].r * scale;
|
9191c39e
Jiaming Guo
first version of ...
|
2717
|
A.push_back(new_sphere);
|
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Jiaming Guo
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|
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|
}
}
for (unsigned i = 0; i < inlet.size(); i++) {
for (unsigned j = 0; j < inlet[i].V.size() - 1; j++) {
new_cone.c1 = inlet[i].V[j];
new_cone.c2 = inlet[i].V[j + 1];
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2725
2726
|
new_cone.r1 = inlet[i].r * scale;
new_cone.r2 = inlet[i].r * scale;
|
9191c39e
Jiaming Guo
first version of ...
|
2727
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2729
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|
B.push_back(new_cone);
}
}
for (unsigned i = 0; i < outlet.size(); i++) {
for (unsigned j = 0; j < outlet[i].V.size() - 1; j++) {
new_cone.c1 = outlet[i].V[j];
new_cone.c2 = outlet[i].V[j + 1];
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2734
2735
|
new_cone.r1 = outlet[i].r * scale;
new_cone.r2 = outlet[i].r * scale;
|
9191c39e
Jiaming Guo
first version of ...
|
2736
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2738
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2740
|
B.push_back(new_cone);
}
}
// find out the image stack size
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2741
2742
|
Xl = main_feeder[0][0] - length / 2 - 2 * radius; // left bound x coordinate
Xr = main_feeder[1][0] + length / 2 + 2 * radius; // right bound x coordinate
|
9191c39e
Jiaming Guo
first version of ...
|
2743
2744
2745
2746
2747
2748
|
for (unsigned i = 0; i < A.size(); i++) {
if (A[i].c[1] > top)
top = A[i].c[1];
if (A[i].c[1] < bottom)
bottom = A[i].c[1];
|
ce1a6f5e
Jiaming Guo
add functions for...
|
2749
2750
2751
2752
2753
|
// extend the network boundingbox if the additional connections are outside
if (A[i].c[2] > bb.B[2])
bb.B[2] = A[i].c[2];
if (A[i].c[2] < bb.A[2])
bb.A[2] = A[i].c[2];
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2754
2755
|
if (A[i].r * scale > max_radius)
max_radius = A[i].r * scale;
|
9191c39e
Jiaming Guo
first version of ...
|
2756
2757
|
}
|
b61addd8
Jiaming Guo
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|
2758
|
Yt = top + 2 * radius; // top bound y coordinate
|
b710cea4
Jiaming Guo
fixed saving imag...
|
2759
|
Yb = bottom - 2 * radius; // bottom bound y coordinate
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2760
|
Z = (bb.B[2] - bb.A[2] + 4 * radius); // bounding box width(along z-axis)
|
9191c39e
Jiaming Guo
first version of ...
|
2761
2762
2763
|
}
/// making image stack main function
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2764
|
void make_image_stack(stim::image_stack<unsigned char, T> &I, T dx, T dy, T dz, std::string stackdir, bool prototype = false, T radius = 5.0f, T scale = 1.0f) {
|
9191c39e
Jiaming Guo
first version of ...
|
2765
2766
2767
|
/// preparation for making image stack
T X, Xl, Xr, Y, Yt, Yb, Z;
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2768
|
preparation(Xl, Xr, Yt, Yb, Z, prototype, 40.0f, 10.0f, radius, scale);
|
9191c39e
Jiaming Guo
first version of ...
|
2769
2770
|
X = Xr - Xl; // bounding box length(along x-axis)
Y = Yt - Yb; // bounding box height(along y-axis)
|
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Jiaming Guo
first version of ...
|
2771
|
stim::vec3<T> center = bb.center(); // get the center of bounding box
|
b710cea4
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fixed saving imag...
|
2772
|
int size_x, size_y, size_z;
|
9191c39e
Jiaming Guo
first version of ...
|
2773
|
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2774
2775
|
if (!prototype) {
/// make
|
6332d1e7
Jiaming Guo
fixed warnings
|
2776
2777
|
size_x = (int)(X / dx + 1); // set the size of image
size_y = (int)(Y / dy + 1);
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2778
|
size_z = (int)(Z / dz + 1); // +3 in order to deal with reminder
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2779
2780
2781
2782
2783
|
/// initialize image stack object
I.init(1, size_x, size_y, size_z);
I.set_dim(dx, dy, dz);
}
else {
|
6332d1e7
Jiaming Guo
fixed warnings
|
2784
2785
2786
|
size_x = (int)I.nx();
size_y = (int)I.ny();
size_z = (int)I.nz();
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2787
2788
|
}
|
9191c39e
Jiaming Guo
first version of ...
|
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
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2820
2821
2822
2823
2824
|
// because of lack of memory, we have to computer one slice of stack per time
// allocate vertex, edge and bus
stim::sphere<T> *d_V;
stim::cone<T> *d_E;
stim::cuboid<T> *d_B;
HANDLE_ERROR(cudaMalloc((void**)&d_V, A.size() * sizeof(stim::sphere<T>)));
HANDLE_ERROR(cudaMalloc((void**)&d_E, B.size() * sizeof(stim::cone<T>)));
HANDLE_ERROR(cudaMalloc((void**)&d_B, CU.size() * sizeof(stim::cuboid<T>)));
HANDLE_ERROR(cudaMemcpy(d_V, &A[0], A.size() * sizeof(stim::sphere<T>), cudaMemcpyHostToDevice));
HANDLE_ERROR(cudaMemcpy(d_E, &B[0], B.size() * sizeof(stim::cone<T>), cudaMemcpyHostToDevice));
HANDLE_ERROR(cudaMemcpy(d_B, &CU[0], CU.size() * sizeof(stim::cuboid<T>), cudaMemcpyHostToDevice));
// allocate image stack information memory
size_t* d_R;
T *d_S;
size_t* R = (size_t*)malloc(4 * sizeof(size_t)); // size in 4 dimension
R[0] = 1;
R[1] = (size_t)size_x;
R[2] = (size_t)size_y;
R[3] = (size_t)size_z;
T *S = (T*)malloc(4 * sizeof(T)); // spacing in 4 dimension
S[0] = 1.0f;
S[1] = dx;
S[2] = dy;
S[3] = dz;
size_t num = size_x * size_y;
HANDLE_ERROR(cudaMalloc((void**)&d_R, 4 * sizeof(size_t)));
HANDLE_ERROR(cudaMalloc((void**)&d_S, 4 * sizeof(T)));
HANDLE_ERROR(cudaMemcpy(d_R, R, 4 * sizeof(size_t), cudaMemcpyHostToDevice));
HANDLE_ERROR(cudaMemcpy(d_S, S, 4 * sizeof(T), cudaMemcpyHostToDevice));
// for every slice of image
unsigned p = 0; // percentage of progress
|
6332d1e7
Jiaming Guo
fixed warnings
|
2825
|
for (int i = 0; i < size_z; i++) {
|
9191c39e
Jiaming Guo
first version of ...
|
2826
|
|
6765b32b
Jiaming Guo
add hilbert curve
|
2827
2828
2829
|
int x = 0 - (int)Xl; // translate whole network(including inlet/outlet) to origin
int y = 0 - (int)Yb;
int z = i + (int)center[2]; // box symmetric along z-axis
|
9191c39e
Jiaming Guo
first version of ...
|
2830
2831
2832
2833
2834
2835
|
// allocate image slice memory
unsigned char* d_ptr;
unsigned char* ptr = (unsigned char*)malloc(num * sizeof(unsigned char));
memset(ptr, 0, num * sizeof(unsigned char));
HANDLE_ERROR(cudaMalloc((void**)&d_ptr, num * sizeof(unsigned char)));
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2836
2837
|
if (prototype) // load prototype image stack if provided
HANDLE_ERROR(cudaMemcpy(d_ptr, &I.data()[i * num], num * sizeof(unsigned char), cudaMemcpyHostToDevice));
|
9191c39e
Jiaming Guo
first version of ...
|
2838
2839
2840
|
cudaDeviceProp prop;
cudaGetDeviceProperties(&prop, 0); // get cuda device properties structure
|
6332d1e7
Jiaming Guo
fixed warnings
|
2841
|
size_t max_thread = (size_t)sqrt(prop.maxThreadsPerBlock); // get the maximum number of thread per block
|
9191c39e
Jiaming Guo
first version of ...
|
2842
|
|
6332d1e7
Jiaming Guo
fixed warnings
|
2843
2844
|
dim3 block((unsigned)(size_x / max_thread + 1), (unsigned)(size_y / max_thread + 1));
dim3 thread((unsigned)max_thread, (unsigned)max_thread);
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2845
|
inside_sphere << <block, thread >> > (d_V, A.size(), Z, d_R, d_S, d_ptr, x, y, z);
|
9191c39e
Jiaming Guo
first version of ...
|
2846
|
cudaDeviceSynchronize();
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2847
|
inside_cone << <block, thread >> > (d_E, B.size(), Z, d_R, d_S, d_ptr, x, y, z);
|
9191c39e
Jiaming Guo
first version of ...
|
2848
|
cudaDeviceSynchronize();
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2849
|
inside_cuboid << <block, thread >> > (d_B, CU.size(), Z, d_R, d_S, d_ptr, x, y, z);
|
9191c39e
Jiaming Guo
first version of ...
|
2850
2851
2852
2853
2854
2855
2856
2857
2858
|
HANDLE_ERROR(cudaMemcpy(ptr, d_ptr, num * sizeof(unsigned char), cudaMemcpyDeviceToHost));
I.set(ptr, i);
free(ptr);
HANDLE_ERROR(cudaFree(d_ptr));
// print progress bar
|
6332d1e7
Jiaming Guo
fixed warnings
|
2859
|
p = (unsigned int)((i + 1) / size_z * 100);
|
9191c39e
Jiaming Guo
first version of ...
|
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
|
rtsProgressBar(p);
}
// clear up
free(R);
free(S);
HANDLE_ERROR(cudaFree(d_R));
HANDLE_ERROR(cudaFree(d_S));
HANDLE_ERROR(cudaFree(d_V));
HANDLE_ERROR(cudaFree(d_E));
HANDLE_ERROR(cudaFree(d_B));
if (stackdir == "")
I.save_images("image????.bmp");
else
I.save_images(stackdir + "/image????.bmp");
}
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
|
/// save network flow profile
void save_network() {
// save the pressure information to CSV file
std::string p_filename = "profile/pressure.csv";
std::ofstream p_file;
p_file.open(p_filename.c_str());
p_file << "Vertex, Pressure(g/" << units << "/s^2)" << std::endl;
for (unsigned i = 0; i < num_vertex; i++)
p_file << i << "," << pressure[i] << std::endl;
p_file.close();
// save the flow information to CSV file
std::string f_filename = "profile/flow_rate.csv";
std::ofstream f_file;
f_file.open(f_filename.c_str());
f_file << "Edge, Volume flow rate(" << units << "^3/s)" << std::endl;
for (unsigned i = 0; i < num_edge; i++)
f_file << Q[i].first << "->" << Q[i].second << "," << Q[i].third << std::endl;
f_file.close();
}
|
8f6c2057
Jiaming Guo
fixed index marki...
|
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
|
/// check whether current network needs to be subdivided
bool check_subdivision() {
for (size_t i = 0; i < num_edge; i++) {
if (E[i].size() > 2) {
return true;
}
}
return false;
}
/// calculate the inverse of A and store the result in C
|
9191c39e
Jiaming Guo
first version of ...
|
2912
2913
2914
2915
2916
2917
|
void inversion(T** A, int order, T* C) {
#ifdef __CUDACC__
// convert from double pointer to single pointer, make it flat
T* Aflat = (T*)malloc(order * order * sizeof(T));
|
6332d1e7
Jiaming Guo
fixed warnings
|
2918
2919
|
for (int i = 0; i < order; i++)
for (int j = 0; j < order; j++)
|
9191c39e
Jiaming Guo
first version of ...
|
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
|
Aflat[i * order + j] = A[i][j];
// create device pointer
T* d_Aflat; // flat original matrix
T* d_Cflat; // flat inverse matrix
T** d_A; // put the flat original matrix into another array of pointer
T** d_C;
int *d_P;
int *d_INFO;
// allocate memory on device
HANDLE_ERROR(cudaMalloc((void**)&d_Aflat, order * order * sizeof(T)));
HANDLE_ERROR(cudaMalloc((void**)&d_Cflat, order * order * sizeof(T)));
HANDLE_ERROR(cudaMalloc((void**)&d_A, sizeof(T*)));
HANDLE_ERROR(cudaMalloc((void**)&d_C, sizeof(T*)));
HANDLE_ERROR(cudaMalloc((void**)&d_P, order * 1 * sizeof(int)));
HANDLE_ERROR(cudaMalloc((void**)&d_INFO, 1 * sizeof(int)));
// copy matrix from host to device
HANDLE_ERROR(cudaMemcpy(d_Aflat, Aflat, order * order * sizeof(T), cudaMemcpyHostToDevice));
// copy matrix from device to device
HANDLE_ERROR(cudaMemcpy(d_A, &d_Aflat, sizeof(T*), cudaMemcpyHostToDevice));
HANDLE_ERROR(cudaMemcpy(d_C, &d_Cflat, sizeof(T*), cudaMemcpyHostToDevice));
// calculate the inverse of matrix based on cuBLAS
cublasHandle_t handle;
CUBLAS_HANDLE_ERROR(cublasCreate_v2(&handle)); // create cuBLAS handle object
CUBLAS_HANDLE_ERROR(cublasSgetrfBatched(handle, order, d_A, order, d_P, d_INFO, 1));
int INFO = 0;
HANDLE_ERROR(cudaMemcpy(&INFO, d_INFO, sizeof(int), cudaMemcpyDeviceToHost));
if (INFO == order)
{
std::cout << "Factorization Failed : Matrix is singular." << std::endl;
cudaDeviceReset();
exit(1);
}
CUBLAS_HANDLE_ERROR(cublasSgetriBatched(handle, order, (const T **)d_A, order, d_P, d_C, order, d_INFO, 1));
CUBLAS_HANDLE_ERROR(cublasDestroy_v2(handle));
// copy inverse matrix from device to device
HANDLE_ERROR(cudaMemcpy(&d_Cflat, d_C, sizeof(T*), cudaMemcpyDeviceToHost));
// copy inverse matrix from device to host
HANDLE_ERROR(cudaMemcpy(C, d_Cflat, order * order * sizeof(T), cudaMemcpyDeviceToHost));
// clear up
free(Aflat);
HANDLE_ERROR(cudaFree(d_Aflat));
HANDLE_ERROR(cudaFree(d_Cflat));
HANDLE_ERROR(cudaFree(d_A));
HANDLE_ERROR(cudaFree(d_C));
HANDLE_ERROR(cudaFree(d_P));
HANDLE_ERROR(cudaFree(d_INFO));
#else
// get the determinant of a
double det = 1.0 / determinant(A, order);
// memory allocation
T* tmp = (T*)malloc((order - 1)*(order - 1) * sizeof(T));
T** minor = (T**)malloc((order - 1) * sizeof(T*));
for (int i = 0; i < order - 1; i++)
minor[i] = tmp + (i * (order - 1));
for (int j = 0; j < order; j++) {
for (int i = 0; i < order; i++) {
// get the co-factor (matrix) of A(j,i)
get_minor(A, minor, j, i, order);
C[i][j] = det * determinant(minor, order - 1);
if ((i + j) % 2 == 1)
C[i][j] = -C[i][j];
}
}
// release memory
free(tmp);
free(minor);
#endif
}
|
8f6c2057
Jiaming Guo
fixed index marki...
|
3004
3005
3006
3007
3008
3009
3010
3011
3012
|
/// arithmetic
// assignment
flow<T> & operator= (flow<T> rhs) {
E = rhs.E;
V = rhs.V;
return *this;
}
|
9191c39e
Jiaming Guo
first version of ...
|
3013
3014
3015
3016
|
};
}
#endif
|