void ofxPoly2Tri::doTriangulation(vector<p2t::Point*> bound) {
CDT *cdt = new CDT(bound);
vector<p2t::Point*> cdtPoints;
if (steinerpoints.size()>0) {
//ADD POINTS
for (int i=0;i<steinerpoints.size();++i) {
p2t::Point *point = new p2t::Point(steinerpoints[i].x,steinerpoints[i].y);
cdtPoints.push_back(point);
cdt->AddPoint(point);
}
}
vector<p2t::Point*> cdtHolePoints;
if (holes.size()>0) {
//ADD HOLES
for (int i=0;i<holes.size();++i) {
vector<p2t::Point*> hole;
vector<ofPoint>holepoints = holes[i].getVertices();
for (int i=0;i<holepoints.size();++i) {
p2t::Point *p = new p2t::Point();
p->set(holepoints[i].x, holepoints[i].y);
cdtHolePoints.push_back(p);
hole.push_back(p);
}
cdt->AddHole(hole);
}
}
cdt->Triangulate();
if (bUseVboMesh) {
vboMesh.clear();
vboMesh.setUsage(GL_DYNAMIC_DRAW);
vboMesh.setMode(OF_PRIMITIVE_TRIANGLES);
for (int i = 0; i < cdt->GetTriangles().size(); i++){
p2t::Triangle *ortriangle = cdt->GetTriangles()[i];
if (ortriangle->IsInterior()) {
vboMesh.addVertex(ofVec3f(ortriangle->GetPoint(0)->x,ortriangle->GetPoint(0)->y,0));
vboMesh.addVertex(ofVec3f(ortriangle->GetPoint(1)->x,ortriangle->GetPoint(1)->y,0));
vboMesh.addVertex(ofVec3f(ortriangle->GetPoint(2)->x,ortriangle->GetPoint(2)->y,0));
float val =ofRandom(220,255);
vboMesh.addColor(ofColor(val,val,val));
vboMesh.addColor(ofColor(val,val,val));
vboMesh.addColor(ofColor(val,val,val));
vboMesh.addNormal(ofVec3f(0,0,1));
vboMesh.addNormal(ofVec3f(0,0,1));
vboMesh.addNormal(ofVec3f(0,0,1));
float xval = ((ortriangle->GetPoint(0)->x+scalex)/(scalex*2))*512;
float yval = ((ortriangle->GetPoint(0)->y+scaley)/(scaley*2))*512;
float xvala = ((ortriangle->GetPoint(1)->x+scalex)/(scalex*2))*512;
float yvala = ((ortriangle->GetPoint(1)->y+scaley)/(scaley*2))*512;
float xvalb = ((ortriangle->GetPoint(2)->x+scalex)/(scalex*2))*512;
float yvalb = ((ortriangle->GetPoint(2)->y+scaley)/(scaley*2))*512;
vboMesh.addTexCoord(ofVec2f(xval,yval));
vboMesh.addTexCoord(ofVec2f(xvala,yvala));
vboMesh.addTexCoord(ofVec2f(xvalb,yvalb));
}
}
} else {
triangulatedMesh.clear();
triangulatedMesh.setMode(OF_PRIMITIVE_TRIANGLES);
for (int i = 0; i < cdt->GetTriangles().size(); i++){
p2t::Triangle *ortriangle = cdt->GetTriangles()[i];
if (ortriangle->IsInterior()) {
//ofColor randomColor = ofColor(ofRandom(255),ofRandom(255),ofRandom(255));
triangulatedMesh.addVertex(ofVec3f(ortriangle->GetPoint(0)->x,ortriangle->GetPoint(0)->y));
triangulatedMesh.addVertex(ofVec3f(ortriangle->GetPoint(1)->x,ortriangle->GetPoint(1)->y));
triangulatedMesh.addVertex(ofVec3f(ortriangle->GetPoint(2)->x,ortriangle->GetPoint(2)->y));
float val =ofRandom(220,255);
triangulatedMesh.addColor(ofColor(val,val,val));
triangulatedMesh.addColor(ofColor(val,val,val));
triangulatedMesh.addColor(ofColor(val,val,val));
triangulatedMesh.addNormal(ofVec3f(0,0,1));
triangulatedMesh.addNormal(ofVec3f(0,0,1));
triangulatedMesh.addNormal(ofVec3f(0,0,1));
float xval = ((ortriangle->GetPoint(0)->x+scalex)/(scalex*2))*512;
float yval = ((ortriangle->GetPoint(0)->y+scaley)/(scaley*2))*512;
float xvala = ((ortriangle->GetPoint(1)->x+scalex)/(scalex*2))*512;
float yvala = ((ortriangle->GetPoint(1)->y+scaley)/(scaley*2))*512;
float xvalb = ((ortriangle->GetPoint(2)->x+scalex)/(scalex*2))*512;
float yvalb = ((ortriangle->GetPoint(2)->y+scaley)/(scaley*2))*512;
triangulatedMesh.addTexCoord(ofVec2f(xval,yval));
triangulatedMesh.addTexCoord(ofVec2f(xvala,yvala));
triangulatedMesh.addTexCoord(ofVec2f(xvalb,yvalb));
}
}
}
//free the memory again
for (vector<p2t::Point*>::iterator it = cdtPoints.begin(); it != cdtPoints.end(); ++it) {
delete *it;
}
for (vector<p2t::Point*>::iterator it = cdtHolePoints.begin(); it != cdtHolePoints.end(); ++it) {
delete *it;
}
delete cdt;
cdt=NULL;
}
