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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) {
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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;
}
// 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) {
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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;
}
// 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
std::vector<T> v; // velocity
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 index j of edge i
T get_radius(unsigned i, unsigned j) {
return E[i].r(j);
}
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// get the pendant vertices
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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// form hilbert curves
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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]);
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glPushMatrix();
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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]);
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glutSolidSphere(get_r(i, (unsigned)(E[i].size() - 1)) * 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][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
|
826
|
glutSolidSphere(get_r(i, (unsigned)(E[i].size() - 1)) * scale, subdivision, subdivision);
|
6ea69c93
Jiaming Guo
change bus size
|
827
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glPopMatrix();
glDisable(GL_BLEND);
glEnable(GL_DEPTH_TEST);
}
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9191c39e
Jiaming Guo
first version of ...
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}
}
// draw edges as series of cylinders
|
ce1a6f5e
Jiaming Guo
add functions for...
|
835
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void glSolidCylinder(unsigned index, std::vector<unsigned char> color, GLint subdivision, T scale = 1.0f) {
|
9191c39e
Jiaming Guo
first version of ...
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839
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stim::vec3<float> tmp_d;
stim::vec3<float> center1;
stim::vec3<float> center2;
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
840
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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...
|
846
|
if (i == index) { // render in tranparency for direction indication
|
f4105b89
Jiaming Guo
add new function:...
|
847
848
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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...
|
849
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glDisable(GL_DEPTH_TEST);
|
6ea69c93
Jiaming Guo
change bus size
|
850
|
glColor4f((float)color[i * 3 + 0] / 255, (float)color[i * 3 + 1] / 255, (float)color[i * 3 + 2] / 255, 0.3f);
|
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);
|
9191c39e
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];
|
6ea69c93
Jiaming Guo
change bus size
|
859
860
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r1 = get_r(i, j) * scale;
r2 = get_r(i, j + 1) * scale;
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
861
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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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9191c39e
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...
|
912
913
914
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916
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if (i == index) {
glDisable(GL_BLEND);
glEnable(GL_DEPTH_TEST);
}
|
9191c39e
Jiaming Guo
first version of ...
|
917
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}
glFlush();
|
9191c39e
Jiaming Guo
first version of ...
|
919
920
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}
|
6ea69c93
Jiaming Guo
change bus size
|
921
|
// draw the flow direction as cone, the size of the cone depends on the length of that edge
|
ce1a6f5e
Jiaming Guo
add functions for...
|
922
|
void glSolidCone(unsigned i, GLint subdivision, T scale = 1.0f, T threshold = 0.01f) {
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
923
924
925
926
927
|
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
|
928
|
T h; // height base of the cone
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
929
930
931
|
std::vector<typename stim::vec3<T> > cp;
T radius;
|
6332d1e7
Jiaming Guo
fixed warnings
|
932
|
glColor3f(0.0f, 0.0f, 0.0f); // lime color
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
933
|
|
6332d1e7
Jiaming Guo
fixed warnings
|
934
|
size_t index = E[i].size() / 2 - 1;
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
935
|
tmp_d = E[i][index + 1] - E[i][index];
|
6332d1e7
Jiaming Guo
fixed warnings
|
936
|
h = tmp_d.len() / 3.0f; // get the height base by factor 3
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
937
938
939
|
tmp_d = tmp_d.norm();
center = (E[i][index + 1] + E[i][index]) / 2;
tmp_c.rotate(tmp_d);
|
6332d1e7
Jiaming Guo
fixed warnings
|
940
941
|
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...
|
942
|
if (v[i] > threshold)
|
6ea69c93
Jiaming Guo
change bus size
|
943
|
head = center + tmp_d * h;
|
ce1a6f5e
Jiaming Guo
add functions for...
|
944
|
else if (v[i] < -threshold)
|
6ea69c93
Jiaming Guo
change bus size
|
945
|
head = center - tmp_d * h;
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
946
947
948
949
|
stim::circle<float> c(center, radius, tmp_d, tmp_c.U);
cp = c.glpoints(subdivision);
|
ce1a6f5e
Jiaming Guo
add functions for...
|
950
951
952
953
954
955
956
957
|
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...
|
958
959
960
961
962
963
964
965
966
967
968
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972
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980
|
// 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...
|
981
|
void glSolidCone(GLint subdivision, T scale = 1.0f, T threhold = 0.01f) {
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
982
|
|
9191c39e
Jiaming Guo
first version of ...
|
983
984
985
986
987
|
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
|
988
|
T h;
|
9191c39e
Jiaming Guo
first version of ...
|
989
990
|
T radius;
|
6ea69c93
Jiaming Guo
change bus size
|
991
|
glColor3f(0.600f, 0.847f, 0.788f);
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
992
|
// draw a cone for every edge to indicate
|
9191c39e
Jiaming Guo
first version of ...
|
993
|
for (unsigned i = 0; i < num_edge; i++) { // for every edge
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
994
995
996
|
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
|
997
|
h = tmp_d.len() / 3.0f; // get the height base by factor 3
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
998
999
1000
|
tmp_d = tmp_d.norm();
center = (E[i][k2] + E[i][k1]) / 2;
tmp_c.rotate(tmp_d);
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1001
|
radius = (E[i].r(k2) + E[i].r(k1)) / 2 * scale;
|
6ea69c93
Jiaming Guo
change bus size
|
1002
|
radius = (h / sqrt(3) < radius) ? h / sqrt(3) : radius; // update radius by height base if necessary
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1003
|
if (v[i] > threhold) // if flow flows from k1 to k2
|
6ea69c93
Jiaming Guo
change bus size
|
1004
|
head = center + tmp_d * h;
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1005
|
else if(v[i] < -threhold)
|
6ea69c93
Jiaming Guo
change bus size
|
1006
|
head = center - tmp_d * h;
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
1007
1008
1009
|
stim::circle<float> c(center, radius, tmp_d, tmp_c.U);
cp = c.glpoints(subdivision);
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1010
1011
1012
1013
1014
1015
1016
|
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...
|
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
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1030
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1036
|
//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 ...
|
1037
1038
1039
1040
1041
|
}
glFlush();
}
// draw main feeder as solid cube
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1042
|
void glSolidCuboid(GLint subdivision, bool manufacture = false, T length = 40.0f, T height = 10.0f) {
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
1043
|
|
9191c39e
Jiaming Guo
first version of ...
|
1044
|
T width;
|
4bb615eb
Jiaming Guo
fixed generating ...
|
1045
1046
1047
|
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 ...
|
1048
1049
|
width = U[2] - L[2] + 10.0f;
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1050
1051
1052
1053
|
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 ...
|
1054
1055
1056
1057
1058
1059
1060
1061
1062
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1102
|
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 ...
|
1103
1104
|
}
|
057ea93b
Jiaming Guo
add flow velocity...
|
1105
|
// draw flow velocity field, glyph
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1106
|
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...
|
1107
1108
1109
1110
1111
1112
1113
1114
1115
|
// 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...
|
1116
|
// rendering the arrows
|
057ea93b
Jiaming Guo
add flow velocity...
|
1117
1118
1119
1120
1121
|
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...
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1122
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if (v[i] > threshold) { // positive, from start point to end point
|
057ea93b
Jiaming Guo
add flow velocity...
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v1 = E[i][j];
v3 = E[i][j + 1];
}
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1126
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else if (v[i] < -threshold) { // negative, from end point to start point
|
057ea93b
Jiaming Guo
add flow velocity...
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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...
|
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}
|
ce1a6f5e
Jiaming Guo
add functions for...
|
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}
}
|
057ea93b
Jiaming Guo
add flow velocity...
|
1164
|
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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();
}
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Jiaming Guo
add flow velocity...
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}
}
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057ea93b
Jiaming Guo
add flow velocity...
|
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}
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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
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1251
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glRasterPos2f((GLfloat)(X / 2), (GLfloat)5.0f); // hard coded position!!!!!
|
b61addd8
Jiaming Guo
add adjustment fe...
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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...
|
1265
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// draw the bridge as lines or arrows
|
ce1a6f5e
Jiaming Guo
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1266
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void line_bridge(bool &redisplay, T r = 4.0f) {
|
f4105b89
Jiaming Guo
add new function:...
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1267
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Jiaming Guo
add functions for...
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if (redisplay) { // check to see whether the display list needs to be updated
|
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Jiaming Guo
add new function:...
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1269
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glDeleteLists(dlist, 1);
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ce1a6f5e
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redisplay = false;
}
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Jiaming Guo
add diplay list t...
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1272
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1275
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if (!glIsList(dlist)) {
dlist = glGenLists(1);
glNewList(dlist, GL_COMPILE);
|
f4105b89
Jiaming Guo
add new function:...
|
1276
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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...
|
1373
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glLineWidth(5);
for (unsigned i = 0; i < inlet.size(); i++) {
if (inlet_feasibility[i])
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1376
1377
|
glColor3f(0.0f, 0.0f, 0.0f);
// glColor4f(0.0f, 0.0f, 0.0f, 0.2f); // feasible -> black
|
0224d2ef
Jiaming Guo
fixed square wave...
|
1378
|
else
|
ce1a6f5e
Jiaming Guo
add functions for...
|
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|
glColor3f(1.0f, 0.0f, 0.0f);
// glColor4f(1.0f, 0.0f, 0.0f, 0.2f); // nonfeasible -> red
|
0224d2ef
Jiaming Guo
fixed square wave...
|
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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...
|
1389
1390
|
glColor3f(0.0f, 0.0f, 0.0f);
// glColor4f(0.0f, 0.0f, 0.0f, 0.2f); // feasible -> black
|
0224d2ef
Jiaming Guo
fixed square wave...
|
1391
|
else
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1392
1393
|
glColor3f(1.0f, 0.0f, 0.0f);
// glColor4f(1.0f, 0.0f, 0.0f, 0.2f); // nonfeasible -> red
|
0224d2ef
Jiaming Guo
fixed square wave...
|
1394
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|
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...
|
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// glDisable(GL_BLEND);
// glEnable(GL_DEPTH_TEST);
//}
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
1402
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glEndList();
|
9191c39e
Jiaming Guo
first version of ...
|
1403
|
}
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
1404
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glCallList(dlist);
|
9191c39e
Jiaming Guo
first version of ...
|
1405
1406
1407
|
}
// draw the bridge as tubes
|
6332d1e7
Jiaming Guo
fixed warnings
|
1408
|
void tube_bridge(bool &redisplay, GLint subdivision, T scale = 1.0f, T radius = 5.0f) {
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1409
1410
1411
1412
1413
|
if (redisplay) {
glDeleteLists(dlist + 1, 1);
redisplay = false;
}
|
9191c39e
Jiaming Guo
first version of ...
|
1414
|
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
1415
1416
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|
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...
|
1422
|
glColor3f(0.0f, 0.0f, 0.0f);
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
1423
1424
1425
1426
1427
1428
|
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...
|
1429
|
glutSolidSphere(radius * scale, subdivision, subdivision);
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
1430
1431
1432
1433
1434
1435
1436
|
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...
|
1437
1438
|
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...
|
1439
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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();
|
9191c39e
Jiaming Guo
first version of ...
|
1448
|
}
|
9191c39e
Jiaming Guo
first version of ...
|
1449
|
}
|
9191c39e
Jiaming Guo
first version of ...
|
1450
|
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
1451
1452
1453
1454
1455
|
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]);
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1456
|
glutSolidSphere(radius * scale, subdivision, subdivision);
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
1457
1458
1459
1460
1461
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1463
|
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);
|
ce1a6f5e
Jiaming Guo
add functions for...
|
1464
1465
|
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);
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
1466
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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();
|
9191c39e
Jiaming Guo
first version of ...
|
1475
|
}
|
9191c39e
Jiaming Guo
first version of ...
|
1476
|
}
|
9b69bb4c
Jiaming Guo
add diplay list t...
|
1477
|
glEndList();
|
9191c39e
Jiaming Guo
first version of ...
|
1478
|
}
|
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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(T scale = 1.0f) {
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glColor3f(0.0f, 0.0f, 0.0f);
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for (unsigned i = 0; i < num_vertex; i++) {
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change bus size
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glRasterPos3f(V[i][0], V[i][1] + get_radius(i) * scale, V[i][2]);
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std::stringstream ss;
ss << i;
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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Jiaming Guo
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// inner network
|
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Jiaming Guo
fixed minor bug i...
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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
change bus size
|
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|
if (tmp_d <= 0.0 || tmp_d >= std::pow(v1.len(), 2) && !online) // projection lies outside the line-segment
|
9e60c6a7
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;
}
}
}
}
|
9e60c6a7
Jiaming Guo
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;
}
|
9e60c6a7
Jiaming Guo
fixed minor bug i...
|
1722
|
|
9191c39e
Jiaming Guo
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
|
1725
|
void set_main_feeder(T border = 120.0f) {
|
9191c39e
Jiaming Guo
first version of ...
|
1726
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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]);
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1734
|
main_feeder.push_back(inlet_main_feeder); // 0->inlet, 1->outlet
|
9191c39e
Jiaming Guo
first version of ...
|
1735
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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
|
1739
|
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...
|
1784
|
void build_synthetic_connection(T viscosity, T radius = 5.0f) {
|
9191c39e
Jiaming Guo
first version of ...
|
1785
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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
|
1794
|
x0 = main_feeder[0][0] + 15.0f; // assume bus length is 40.0f
|
9191c39e
Jiaming Guo
first version of ...
|
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for (unsigned i = 0; i < input.size(); i++) {
tmp_v = V[input[i].first];
|
6ea69c93
Jiaming Guo
change bus size
|
1798
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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();
|
8334680a
Jiaming Guo
add square wave c...
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1809
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tmp_b.r = radius;
|
9191c39e
Jiaming Guo
first version of ...
|
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inlet.push_back(tmp_b);
}
|
6ea69c93
Jiaming Guo
change bus size
|
1814
|
x0 = main_feeder[1][0] - 15.0f;
|
9191c39e
Jiaming Guo
first version of ...
|
1815
1816
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for (unsigned i = 0; i < output.size(); i++) {
tmp_v = V[output[i].first];
|
6ea69c93
Jiaming Guo
change bus size
|
1818
|
dx = 30.0f * ((U[0] - tmp_v[0]) / box_length); // the socket position depends on proximity
|
9191c39e
Jiaming Guo
first version of ...
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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...
|
1829
|
tmp_b.r = radius;
|
9191c39e
Jiaming Guo
first version of ...
|
1830
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1832
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outlet.push_back(tmp_b);
}
|
f4105b89
Jiaming Guo
add new function:...
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1833
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backup();
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Jiaming Guo
first version of ...
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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
|
1839
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int find_number_square(T origin_l, T desire_l, int times = 10, T radius = 5.0f) {
|
8334680a
Jiaming Guo
add square wave c...
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bool done = false; // flag indicates the current number of square shape structure is feasible
|
6332d1e7
Jiaming Guo
fixed warnings
|
1842
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int n = (int)(origin_l / (times * 4 * radius)); // number of square shape structure
|
8334680a
Jiaming Guo
add square wave c...
|
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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...
|
1860
|
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
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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
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std::pair<stim::vec3<T>, stim::vec3<T>> tmp_bb;
|
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add square wave c...
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1868
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stim::vec3<T> tmp_v;
|
f4105b89
Jiaming Guo
add new function:...
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1869
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if (feeder == 1)
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70c0b942
Jiaming Guo
fixed bug when he...
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1870
|
tmp_v = inlet[i].V[inlet[i].V.size() - 1];
|
f4105b89
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add new function:...
|
1871
|
else if (feeder == 0)
|
70c0b942
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fixed bug when he...
|
1872
|
tmp_v = outlet[i].V[outlet[i].V.size() - 1];
|
f4105b89
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add new function:...
|
1873
|
tmp_bb.first = tmp_v;
|
8334680a
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add square wave c...
|
1874
|
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1875
1876
1877
1878
1879
1880
1881
1882
1883
|
// 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...
|
1884
|
n = find_number_square(origin_l, desire_l, times);
|
b61addd8
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add adjustment fe...
|
1885
1886
1887
1888
|
width = (T)origin_l / (2 * n); // updates
height = (desire_l - origin_l) / (2 * n);
|
057ea93b
Jiaming Guo
add flow velocity...
|
1889
1890
|
// 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 ...
|
1891
1892
|
ratio = 1.0f; // load original lengths
desire_l = tmp_d; // loading back-ups
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1893
1894
1895
|
origin_l = tmp_l;
std::cout << "Warning: current ratio is not feasible, use full original line." << std::endl;
|
b710cea4
Jiaming Guo
fixed saving imag...
|
1896
|
n = find_number_square(origin_l, desire_l, times);
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1897
1898
1899
|
width = (T)origin_l / (2 * n); // updates
height = (desire_l - origin_l) / (2 * n);
|
8334680a
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add square wave c...
|
1900
|
}
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1901
1902
1903
1904
1905
|
}
// check whether it needs 3D square-wave-like connections
if (height > threshold) { // enbale 3D connections
|
6332d1e7
Jiaming Guo
fixed warnings
|
1906
|
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...
|
1907
|
while (height > threshold) { // increase order to decrease height
|
8334680a
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add square wave c...
|
1908
1909
|
n++;
width = (T)(origin_l) / (2 * n);
|
6332d1e7
Jiaming Guo
fixed warnings
|
1910
|
height = (T)((desire_l - (1 + 2 * n) * origin_l) / std::pow(2 * n, 2));
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1911
|
// check whether it appears overlap, if it appears we choose last time height even if it is larger than threshold
|
8334680a
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add square wave c...
|
1912
1913
1914
|
if (width < times * radius) {
n--;
width = (T)(origin_l) / (2 * n);
|
6332d1e7
Jiaming Guo
fixed warnings
|
1915
|
height = (T)((desire_l - (1 + 2 * n) * origin_l) / std::pow(2 * n, 2));
|
8334680a
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|
1916
1917
1918
|
break;
}
}
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1919
1920
|
// check overlap in terms of height, has potential risk when both height and width are less than times * radius.
|
8334680a
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add square wave c...
|
1921
1922
1923
|
while (height < times * radius) {
n--;
width = (T)(origin_l) / (2 * n);
|
6332d1e7
Jiaming Guo
fixed warnings
|
1924
|
height = (T)((desire_l - (1 + 2 * n) * origin_l) / std::pow(2 * n, 2));
|
8334680a
Jiaming Guo
add square wave c...
|
1925
1926
|
}
|
4bb615eb
Jiaming Guo
fixed generating ...
|
1927
|
/// degenerated case, use original extending method
|
b61addd8
Jiaming Guo
add adjustment fe...
|
1928
|
if (n == 0) {
|
4bb615eb
Jiaming Guo
fixed generating ...
|
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
|
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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|
1942
1943
|
}
|
8334680a
Jiaming Guo
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|
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
|
// 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...
|
1966
|
// "up"
|
8334680a
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|
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
|
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...
|
1988
|
// in
|
8334680a
Jiaming Guo
add square wave c...
|
1989
1990
1991
1992
1993
|
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...
|
1994
|
// get the bounding box edge
|
f4105b89
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|
1995
1996
|
if (j == n - 1 && k == 0) // first time go "in"
tmp_bb.second = tmp_v;
|
b61addd8
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add adjustment fe...
|
1997
|
// "down"
|
8334680a
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|
1998
1999
2000
2001
2002
|
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...
|
2003
|
// out
|
8334680a
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add square wave c...
|
2004
2005
2006
2007
2008
|
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...
|
2009
|
// "down"
|
8334680a
Jiaming Guo
add square wave c...
|
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
|
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:...
|
2030
|
if (ratio > 0.0f && ratio < 1.0f) {
|
8334680a
Jiaming Guo
add square wave c...
|
2031
2032
2033
2034
2035
2036
|
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...
|
2037
|
// use 2D square-wave-like connections
|
8334680a
Jiaming Guo
add square wave c...
|
2038
|
else {
|
70c0b942
Jiaming Guo
fixed bug when he...
|
2039
2040
2041
|
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
|
2042
|
n = (int)(need_l / (2 * height));
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2043
|
if (n == 0) // degenerated case
|
70c0b942
Jiaming Guo
fixed bug when he...
|
2044
2045
2046
2047
|
n = 1;
height = need_l / (2 * n);
width = origin_l / (2 * n);
}
|
8334680a
Jiaming Guo
add square wave c...
|
2048
2049
|
for (int j = 0; j < n; j++) {
|
f4105b89
Jiaming Guo
add new function:...
|
2050
|
// up
|
8334680a
Jiaming Guo
add square wave c...
|
2051
2052
2053
2054
2055
2056
|
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:...
|
2057
|
// left
|
8334680a
Jiaming Guo
add square wave c...
|
2058
2059
2060
2061
2062
|
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:...
|
2063
2064
|
if (j == n - 1)
tmp_bb.second = tmp_v;
|
8334680a
Jiaming Guo
add square wave c...
|
2065
|
|
f4105b89
Jiaming Guo
add new function:...
|
2066
|
// down
|
8334680a
Jiaming Guo
add square wave c...
|
2067
2068
2069
2070
2071
2072
|
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:...
|
2073
|
// left
|
8334680a
Jiaming Guo
add square wave c...
|
2074
2075
2076
2077
2078
2079
|
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...
|
2080
2081
2082
2083
2084
2085
2086
|
// 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...
|
2087
|
}
|
f4105b89
Jiaming Guo
add new function:...
|
2088
2089
2090
2091
|
if (feeder == 1)
inbb[i] = tmp_bb;
else if (feeder == 0)
outbb[i] = tmp_bb;
|
8334680a
Jiaming Guo
add square wave c...
|
2092
2093
|
}
|
9191c39e
Jiaming Guo
first version of ...
|
2094
|
// automatically modify bridge to make it feasible
|
6332d1e7
Jiaming Guo
fixed warnings
|
2095
|
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...
|
2096
2097
2098
|
glDeleteLists(dlist, 1); // delete display list for modify
glDeleteLists(dlist + 1, 1);
|
f4105b89
Jiaming Guo
add new function:...
|
2099
|
|
8334680a
Jiaming Guo
add square wave c...
|
2100
|
// because of radius change at the port vertex, there will be a pressure drop at that port
|
9191c39e
Jiaming Guo
first version of ...
|
2101
2102
2103
2104
2105
2106
2107
2108
|
// 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...
|
2109
|
T ar = get_radius(idx) / radius;
|
9191c39e
Jiaming Guo
first version of ...
|
2110
2111
2112
2113
2114
2115
2116
2117
2118
|
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...
|
2119
|
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 ...
|
2120
2121
2122
2123
2124
|
if (tmp_p > source_pressure) {
source_pressure = tmp_p;
inlet_index = i;
}
}
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2125
|
Ps = source_pressure;
|
9191c39e
Jiaming Guo
first version of ...
|
2126
|
|
8334680a
Jiaming Guo
add square wave c...
|
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
|
// 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...
|
2137
|
Pe = end_pressure;
|
9191c39e
Jiaming Guo
first version of ...
|
2138
|
|
8334680a
Jiaming Guo
add square wave c...
|
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
|
// 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 ...
|
2151
|
|
8334680a
Jiaming Guo
add square wave c...
|
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
|
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
|
2178
2179
|
inlet[i].V.push_back(bus_v);
}
|
8334680a
Jiaming Guo
add square wave c...
|
2180
|
else {
|
6332d1e7
Jiaming Guo
fixed warnings
|
2181
2182
|
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
|
2183
|
|
8334680a
Jiaming Guo
add square wave c...
|
2184
2185
2186
2187
2188
|
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
|
2189
|
|
8334680a
Jiaming Guo
add square wave c...
|
2190
2191
2192
2193
2194
2195
2196
|
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
|
2197
|
dl = (T)(origin_l / (std::pow(2, order - count) - 1));
|
8334680a
Jiaming Guo
add square wave c...
|
2198
2199
2200
2201
2202
2203
2204
2205
2206
|
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
|
2207
|
desire_l -= (T)(origin_l * ((std::pow(4, order - count) - 1) / (std::pow(2, order - count) - 1)));
|
8334680a
Jiaming Guo
add square wave c...
|
2208
2209
2210
2211
2212
|
origin_l = (bus_v - mid_v).len();
desire_l += origin_l;
find_hilbert_order(origin_l, desire_l, order);
|
6332d1e7
Jiaming Guo
fixed warnings
|
2213
2214
|
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...
|
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
|
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
|
2230
|
|
8334680a
Jiaming Guo
add square wave c...
|
2231
2232
2233
2234
|
// 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
|
2235
|
|
8334680a
Jiaming Guo
add square wave c...
|
2236
2237
2238
2239
2240
2241
2242
2243
|
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
|
2244
|
|
8334680a
Jiaming Guo
add square wave c...
|
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
|
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
|
2265
2266
|
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
|
2267
|
|
8334680a
Jiaming Guo
add square wave c...
|
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
|
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
|
2281
|
dl = (T)(origin_l / (std::pow(2, order - count) - 1));
|
8334680a
Jiaming Guo
add square wave c...
|
2282
2283
2284
2285
2286
2287
2288
2289
2290
|
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
|
2291
|
desire_l -= (T)(origin_l * ((std::pow(4, order - count) - 1) / (std::pow(2, order - count) - 1)));
|
8334680a
Jiaming Guo
add square wave c...
|
2292
2293
2294
2295
2296
|
origin_l = (bus_v - mid_v).len();
desire_l += origin_l;
find_hilbert_order(origin_l, desire_l, order);
|
6332d1e7
Jiaming Guo
fixed warnings
|
2297
2298
|
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...
|
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
|
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
|
2310
|
}
|
8334680a
Jiaming Guo
add square wave c...
|
2311
|
std::reverse(outlet[i].V.begin(), outlet[i].V.end());
|
6765b32b
Jiaming Guo
add hilbert curve
|
2312
|
}
|
9191c39e
Jiaming Guo
first version of ...
|
2313
2314
|
}
}
|
8334680a
Jiaming Guo
add square wave c...
|
2315
2316
2317
|
// 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:...
|
2318
|
bool z; // flag indicates the connection direction along z-axis
|
8334680a
Jiaming Guo
add square wave c...
|
2319
2320
2321
2322
2323
2324
|
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:...
|
2325
2326
|
inbb.resize(inlet.size()); // resize bounding box of inlets/outlets connections
outbb.resize(outlet.size());
|
9191c39e
Jiaming Guo
first version of ...
|
2327
|
|
8334680a
Jiaming Guo
add square wave c...
|
2328
2329
2330
|
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 ...
|
2331
|
|
8334680a
Jiaming Guo
add square wave c...
|
2332
2333
|
bus_v = inlet[i].V[0];
mid_v = inlet[i].V[1];
|
70c0b942
Jiaming Guo
fixed bug when he...
|
2334
|
tmp_v = inlet[i].V[2]; // not always pendant vertex
|
6765b32b
Jiaming Guo
add hilbert curve
|
2335
|
|
8334680a
Jiaming Guo
add square wave c...
|
2336
2337
2338
2339
|
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 ...
|
2340
|
|
8334680a
Jiaming Guo
add square wave c...
|
2341
2342
2343
2344
2345
2346
2347
|
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...
|
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
|
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...
|
2359
2360
|
inlet[i].l = new_l;
|
6332d1e7
Jiaming Guo
fixed warnings
|
2361
|
n = find_number_square(origin_l, desire_l, times);
|
8334680a
Jiaming Guo
add square wave c...
|
2362
2363
2364
2365
|
width = (T)origin_l / (2 * n);
height = (desire_l - origin_l) / (2 * n);
|
0224d2ef
Jiaming Guo
fixed square wave...
|
2366
|
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...
|
2367
2368
2369
|
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
|
2370
|
}
|
f4105b89
Jiaming Guo
add new function:...
|
2371
2372
2373
2374
|
else {
inbb[i].first = inlet[i].V[2];
inbb[i].second = inlet[i].V[1];
}
|
8334680a
Jiaming Guo
add square wave c...
|
2375
2376
2377
2378
2379
|
}
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
|
2380
|
|
8334680a
Jiaming Guo
add square wave c...
|
2381
2382
2383
|
bus_v = outlet[i].V[0];
mid_v = outlet[i].V[1];
tmp_v = outlet[i].V[2];
|
6765b32b
Jiaming Guo
add hilbert curve
|
2384
|
|
8334680a
Jiaming Guo
add square wave c...
|
2385
2386
2387
2388
|
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
|
2389
|
|
8334680a
Jiaming Guo
add square wave c...
|
2390
2391
2392
2393
|
if (outlet[i].V[2][2] > main_feeder[1][2])
z = true;
else
z = false;
|
6765b32b
Jiaming Guo
add hilbert curve
|
2394
|
|
8334680a
Jiaming Guo
add square wave c...
|
2395
2396
|
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...
|
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
|
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...
|
2408
|
outlet[i].l = new_l;
|
6765b32b
Jiaming Guo
add hilbert curve
|
2409
|
|
6332d1e7
Jiaming Guo
fixed warnings
|
2410
|
n = find_number_square(origin_l, desire_l, times);
|
6765b32b
Jiaming Guo
add hilbert curve
|
2411
|
|
8334680a
Jiaming Guo
add square wave c...
|
2412
2413
2414
|
width = (T)origin_l / (2 * n);
height = (desire_l - origin_l) / (2 * n);
|
0224d2ef
Jiaming Guo
fixed square wave...
|
2415
|
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...
|
2416
2417
2418
|
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
|
2419
|
}
|
f4105b89
Jiaming Guo
add new function:...
|
2420
2421
2422
2423
|
else {
outbb[i].first = outlet[i].V[2];
outbb[i].second = outlet[i].V[1];
}
|
9191c39e
Jiaming Guo
first version of ...
|
2424
2425
|
}
}
|
f4105b89
Jiaming Guo
add new function:...
|
2426
|
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2427
2428
2429
2430
2431
2432
2433
|
// 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:...
|
2434
|
check_special_connection(); // check special connections
|
9191c39e
Jiaming Guo
first version of ...
|
2435
2436
|
}
|
f4105b89
Jiaming Guo
add new function:...
|
2437
2438
2439
|
/// check current connections to find overlapping
// phase 1 check -> direct connection intersection
void check_direct_connection() {
|
9191c39e
Jiaming Guo
first version of ...
|
2440
|
|
6332d1e7
Jiaming Guo
fixed warnings
|
2441
|
size_t num;
|
f4105b89
Jiaming Guo
add new function:...
|
2442
|
// check inlet
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2443
2444
|
num = inlet.size(); // get the number of inlets
inlet_feasibility.resize(num, true); // initialization
|
f4105b89
Jiaming Guo
add new function:...
|
2445
2446
2447
|
for (unsigned i = 0; i < num; i++) {
for (unsigned j = 0; j < num; j++) {
if (i != j) {
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2448
|
if (inlet[i].V[0][1] == inlet[j].V[0][1]) {
|
ce1a6f5e
Jiaming Guo
add functions for...
|
2449
|
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:...
|
2450
2451
2452
|
inlet_feasibility[i] = false;
break;
}
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2453
2454
|
else
inlet_feasibility[i] = true;
|
f4105b89
Jiaming Guo
add new function:...
|
2455
|
}
|
f4105b89
Jiaming Guo
add new function:...
|
2456
|
}
|
9191c39e
Jiaming Guo
first version of ...
|
2457
2458
|
}
}
|
f4105b89
Jiaming Guo
add new function:...
|
2459
2460
2461
2462
2463
2464
2465
|
// 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...
|
2466
|
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]) {
|
f4105b89
Jiaming Guo
add new function:...
|
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
|
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();
|
9191c39e
Jiaming Guo
first version of ...
|
2544
|
}
|
f4105b89
Jiaming Guo
add new function:...
|
2545
2546
|
outlet[i].l = l;
l = 0.0f;
|
9191c39e
Jiaming Guo
first version of ...
|
2547
|
}
|
f4105b89
Jiaming Guo
add new function:...
|
2548
2549
2550
2551
|
// clear up inlets/outlets connection bounding box
inbb.clear();
outbb.clear();
|
9191c39e
Jiaming Guo
first version of ...
|
2552
2553
|
}
|
f4105b89
Jiaming Guo
add new function:...
|
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
|
// 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();
}
}
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2578
2579
2580
2581
2582
2583
2584
2585
|
/// 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;
|
f4105b89
Jiaming Guo
add new function:...
|
2586
|
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
|
// 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) {
|
6332d1e7
Jiaming Guo
fixed warnings
|
2610
|
P[inlet[index].v[0]] = (T)(Ps - (8 * viscosity * inlet[index].l * inlet[index].Q / (stim::PI * std::pow(radius, 4))));
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
|
}
}
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) {
|
6332d1e7
Jiaming Guo
fixed warnings
|
2623
|
P[outlet[index].v[0]] = (T)(Pe + (8 * viscosity * outlet[index].l * outlet[index].Q / (stim::PI * std::pow(radius, 4))));
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
|
}
}
// 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
|
9191c39e
Jiaming Guo
first version of ...
|
2641
|
// prepare for image stack
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2642
|
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) {
|
9191c39e
Jiaming Guo
first version of ...
|
2643
|
|
8334680a
Jiaming Guo
add square wave c...
|
2644
|
T max_radius = 0.0f;
|
9191c39e
Jiaming Guo
first version of ...
|
2645
2646
2647
2648
2649
2650
2651
2652
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2657
2658
2659
2660
2661
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2663
2664
2665
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2667
|
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
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2668
2669
2670
2671
|
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 ...
|
2672
|
new_sphere.r = E[i].r(j) * scale;
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2673
2674
2675
2676
|
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 ...
|
2677
2678
|
new_cone.r1 = E[i].r(j) * scale;
new_cone.r2 = E[i].r(j + 1) * scale;
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2679
2680
|
B.push_back(new_cone);
}
|
9191c39e
Jiaming Guo
first version of ...
|
2681
2682
2683
|
}
}
}
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2684
|
|
9191c39e
Jiaming Guo
first version of ...
|
2685
2686
|
// secondly push back outside connection
for (unsigned i = 0; i < inlet.size(); i++) {
|
6765b32b
Jiaming Guo
add hilbert curve
|
2687
2688
|
for (unsigned j = 1; j < inlet[i].V.size() - 1; j++) {
new_sphere.c = inlet[i].V[j];
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2689
|
new_sphere.r = inlet[i].r * scale;
|
9191c39e
Jiaming Guo
first version of ...
|
2690
2691
|
A.push_back(new_sphere);
}
|
9191c39e
Jiaming Guo
first version of ...
|
2692
2693
|
}
for (unsigned i = 0; i < outlet.size(); i++) {
|
6765b32b
Jiaming Guo
add hilbert curve
|
2694
2695
|
for (unsigned j = 1; j < outlet[i].V.size() - 1; j++) {
new_sphere.c = outlet[i].V[j];
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2696
|
new_sphere.r = outlet[i].r * scale;
|
9191c39e
Jiaming Guo
first version of ...
|
2697
|
A.push_back(new_sphere);
|
9191c39e
Jiaming Guo
first version of ...
|
2698
2699
2700
2701
2702
2703
2704
|
}
}
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 ...
|
2705
2706
|
new_cone.r1 = inlet[i].r * scale;
new_cone.r2 = inlet[i].r * scale;
|
9191c39e
Jiaming Guo
first version of ...
|
2707
2708
2709
2710
2711
2712
2713
|
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 ...
|
2714
2715
|
new_cone.r1 = outlet[i].r * scale;
new_cone.r2 = outlet[i].r * scale;
|
9191c39e
Jiaming Guo
first version of ...
|
2716
2717
2718
2719
2720
|
B.push_back(new_cone);
}
}
// find out the image stack size
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2721
2722
|
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 ...
|
2723
2724
2725
2726
2727
2728
|
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...
|
2729
2730
2731
2732
2733
|
// 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 ...
|
2734
2735
|
if (A[i].r * scale > max_radius)
max_radius = A[i].r * scale;
|
9191c39e
Jiaming Guo
first version of ...
|
2736
2737
|
}
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2738
|
Yt = top + 2 * radius; // top bound y coordinate
|
b710cea4
Jiaming Guo
fixed saving imag...
|
2739
|
Yb = bottom - 2 * radius; // bottom bound y coordinate
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2740
|
Z = (bb.B[2] - bb.A[2] + 4 * radius); // bounding box width(along z-axis)
|
9191c39e
Jiaming Guo
first version of ...
|
2741
2742
2743
|
}
/// making image stack main function
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2744
|
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 ...
|
2745
2746
2747
|
/// preparation for making image stack
T X, Xl, Xr, Y, Yt, Yb, Z;
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2748
|
preparation(Xl, Xr, Yt, Yb, Z, prototype, 40.0f, 10.0f, radius, scale);
|
9191c39e
Jiaming Guo
first version of ...
|
2749
2750
|
X = Xr - Xl; // bounding box length(along x-axis)
Y = Yt - Yb; // bounding box height(along y-axis)
|
9191c39e
Jiaming Guo
first version of ...
|
2751
|
stim::vec3<T> center = bb.center(); // get the center of bounding box
|
b710cea4
Jiaming Guo
fixed saving imag...
|
2752
|
int size_x, size_y, size_z;
|
9191c39e
Jiaming Guo
first version of ...
|
2753
|
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2754
2755
|
if (!prototype) {
/// make
|
6332d1e7
Jiaming Guo
fixed warnings
|
2756
2757
|
size_x = (int)(X / dx + 1); // set the size of image
size_y = (int)(Y / dy + 1);
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2758
|
size_z = (int)(Z / dz + 1); // +3 in order to deal with reminder
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2759
2760
2761
2762
2763
|
/// 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
|
2764
2765
2766
|
size_x = (int)I.nx();
size_y = (int)I.ny();
size_z = (int)I.nz();
|
b61addd8
Jiaming Guo
add adjustment fe...
|
2767
2768
|
}
|
9191c39e
Jiaming Guo
first version of ...
|
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
|
// 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
|
2805
|
for (int i = 0; i < size_z; i++) {
|
9191c39e
Jiaming Guo
first version of ...
|
2806
|
|
6765b32b
Jiaming Guo
add hilbert curve
|
2807
2808
2809
|
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 ...
|
2810
2811
2812
2813
2814
2815
|
// 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...
|
2816
2817
|
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 ...
|
2818
2819
2820
|
cudaDeviceProp prop;
cudaGetDeviceProperties(&prop, 0); // get cuda device properties structure
|
6332d1e7
Jiaming Guo
fixed warnings
|
2821
|
size_t max_thread = (size_t)sqrt(prop.maxThreadsPerBlock); // get the maximum number of thread per block
|
9191c39e
Jiaming Guo
first version of ...
|
2822
|
|
6332d1e7
Jiaming Guo
fixed warnings
|
2823
2824
|
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 ...
|
2825
|
inside_sphere << <block, thread >> > (d_V, A.size(), Z, d_R, d_S, d_ptr, x, y, z);
|
9191c39e
Jiaming Guo
first version of ...
|
2826
|
cudaDeviceSynchronize();
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2827
|
inside_cone << <block, thread >> > (d_E, B.size(), Z, d_R, d_S, d_ptr, x, y, z);
|
9191c39e
Jiaming Guo
first version of ...
|
2828
|
cudaDeviceSynchronize();
|
4bb615eb
Jiaming Guo
fixed generating ...
|
2829
|
inside_cuboid << <block, thread >> > (d_B, CU.size(), Z, d_R, d_S, d_ptr, x, y, z);
|
9191c39e
Jiaming Guo
first version of ...
|
2830
2831
2832
2833
2834
2835
2836
2837
2838
|
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
|
2839
|
p = (unsigned int)((i + 1) / size_z * 100);
|
9191c39e
Jiaming Guo
first version of ...
|
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
|
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");
}
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b61addd8
Jiaming Guo
add adjustment fe...
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/// 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();
}
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9191c39e
Jiaming Guo
first version of ...
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/// Calculate the inverse of A and store the result in C
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));
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6332d1e7
Jiaming Guo
fixed warnings
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for (int i = 0; i < order; i++)
for (int j = 0; j < order; j++)
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9191c39e
Jiaming Guo
first version of ...
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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
}
};
}
#endif
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