本文整理汇总了C++中GeometryPtr::beginTriangles方法的典型用法代码示例。如果您正苦于以下问题：C++ GeometryPtr::beginTriangles方法的具体用法？C++ GeometryPtr::beginTriangles怎么用？C++ GeometryPtr::beginTriangles使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类GeometryPtr的用法示例。
在下文中一共展示了GeometryPtr::beginTriangles方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: renderScene
void renderScene(void) {
//open file
fstream file;
stringstream filename;
filename << "ProjectionData_"<< time(0)<<".dat";
file.open(filename.str().c_str(),ios::out);
for(int q(100);q>=50;--q)
{
file << "FRAME NO. "<<q<<endl;
for(int fu(0);fu<2;++fu){
/*if(_m[0]<1)
_m[0] += 0.1;
else
_m[0] = 0.99;*/
/*
if(_m[4]<1)
_m[4] += 0.10;
else
_m[4] = 0.99;
if(_m[8]<1)
_m[8] += 0.10;
else
_m[8] = 0.99;*/
int window_w = 1280;
int window_h = 1024;
cout << "render scene... "<<endl;
TriangleIterator ti;
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glBegin(GL_TRIANGLES);
//map<int, vector<Pnt3f> > _COLORS;
map<int, int> _COLORS;
for(ti = TEST->beginTriangles();ti != TEST->endTriangles();++ti)
{
int rgb_index = 0;
int r(0),g(0),b(0);
while(_COLORS[rgb_index] != NULL)
{
// create random color
r = (int)rand() % 255;
g = (int)rand() % 255;
b = (int)rand() % 255;
// calculate index
rgb_index = 256 * g + 256 * 256 * r + b;
//cout << rgb_index << endl;
}
// SAVE ALL _USED_ COLORS
vector<Pnt3f> v;
v.push_back(ti.getPosition(0));
v.push_back(ti.getPosition(1));
v.push_back(ti.getPosition(2));
_COLORS[rgb_index] = ti.getIndex();
//cout << "r " << r << " g "<<g << " b "<<b<<endl;
// get points from triangle
Pnt3f p1 = ti.getPosition(0);
Pnt3f p2 = ti.getPosition(1);
Pnt3f p3 = ti.getPosition(2);
//set color and add vertices
//glColor3f(r,g,b);
glColor3ub(r,g,b);
glVertex3f(p1[0],p1[1],p1[2]);
glVertex3f(p2[0],p2[1],p2[2]);
glVertex3f(p3[0],p3[1],p3[2]);
}
glEnd();
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glEnable(GL_POLYGON_OFFSET_FILL);
glPolygonOffset(1.0, 1.0);
glBegin(GL_TRIANGLES);
// set background color
glColor3f(0,0,0);
for(ti = TEST->beginTriangles();ti != TEST->endTriangles();++ti)
{
Pnt3f p1 = ti.getPosition(0);
Pnt3f p2 = ti.getPosition(1);
Pnt3f p3 = ti.getPosition(2);
glVertex3f(p1[0],p1[1],p1[2]);
glVertex3f(p2[0],p2[1],p2[2]);
//.........这里部分代码省略.........
示例2: enter
Action::ResultE OOCOSGFeeder::enter(NodePtr& node)
{
GeometryPtr geo = GeometryPtr::dcast(node->getCore());
if(geo == NullFC)
return Action::Continue;
GeoPositionsPtr pos = geo->getPositions();
UInt32 pntindexbase;
if(_poss.find(pos) != _poss.end())
{
pntindexbase = _poss[pos];
pos = NullFC;
}
else
{
pntindexbase = _pntindexbase;
_poss[pos] = _pntindexbase;
_pntindexbase += pos->getSize();
}
UInt32 matind = MaterialPool::addMaterial(geo->getMaterial());
if(pos != NullFC)
{
if(_pfunc != NULL)
{
Pnt3f p;
UInt32 s = pos->getSize();
for(UInt32 i = 0; i < s; ++i)
{
if(_npts != 0)
{
++_pntprog;
Real32 prog = _pntprog / (Real32)_npts;
if(prog > _nextpntprog)
{
PLOG << _nextpntprog * 100 << "%..";
_nextpntprog += 0.1;
}
}
pos->getValue(p, i);
_pfunc(_rec, p);
}
}
}
if(_tfunc != NULL)
{
TriangleIterator it, end = geo->endTriangles();
for(it = geo->beginTriangles();
it != end;
++it)
{
if(_ntris != 0)
{
++_triprog;
Real32 prog = _triprog / (Real32)_ntris;
if(prog > _nexttriprog)
{
PLOG << _nexttriprog * 100 << "%..";
_nexttriprog += 0.1;
}
}
_tfunc(_rec, it.getPositionIndex(0) + pntindexbase,
it.getPositionIndex(1) + pntindexbase,
it.getPositionIndex(2) + pntindexbase,
matind);
}
}
return Action::Continue;
}