gl_network.h
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#ifndef STIM_GL_NETWORK
#define STIM_GL_NETWORK
#include <stim/biomodels/network.h>
#include <stim/visualization/aaboundingbox.h>
namespace stim{
template <typename T>
class gl_network : public stim::network<T>{
protected:
using stim::network<T>::E;
using stim::network<T>::V;
GLuint dlist;
public:
/// Default constructor
gl_network() : stim::network<T>(){
dlist = 0;
}
/// Constructor creates a gl_network from a stim::network
gl_network(stim::network<T> N) : stim::network<T>(N){
dlist = 0;
}
/// Fills the parameters with the minimum and maximum spatial positions in the network,
/// specifying a bounding box for the network geometry
aaboundingbox<T> boundingbox(){
aaboundingbox<T> bb; //create a bounding box
//loop through every edge
for(unsigned e = 0; e < E.size(); e++){
//loop through every point
for(unsigned p = 0; p < E[e].size(); p++)
bb.expand(E[e][p]); //expand the bounding box to include the point
}
return bb; //return the bounding box
}
/// Render the network centerline as a series of line strips.
/// @param m specifies the magnitude value used as the vertex weight (radius, error, etc.)
void glCenterline(unsigned m = 0){
if(!glIsList(dlist)){ //if dlist isn't a display list, create it
dlist = glGenLists(1); //generate a display list
glNewList(dlist, GL_COMPILE); //start a new display list
for(unsigned e = 0; e < E.size(); e++){ //for each edge in the network
glBegin(GL_LINE_STRIP);
for(unsigned p = 0; p < E[e].size(); p++){ //for each point on that edge
glVertex3f(E[e][p][0], E[e][p][1], E[e][p][2]); //set the vertex position based on the current point
glTexCoord1f(E[e].ri(p, m)); //set the texture coordinate based on the specified magnitude index
}
glEnd();
}
glEndList(); //end the display list
}
glCallList(dlist); // render the display list
}
}; //end stim::gl_network class
}; //end stim namespace
#endif