vcglib/apps/sample/trimesh_optional/trimesh_optional.cpp

93 lines
2.3 KiB
C++

#include <stdio.h>
#include <time.h>
#include "mesh_definition.h"
#include<vcg/complex/allocate.h>
#include<vcg/complex/algorithms/create/platonic.h>
#include<vcg/complex/algorithms/update/topology.h>
#include<vcg/complex/algorithms/update/flag.h>
#include<vcg/complex/algorithms/update/normal.h>
#include<vcg/complex/algorithms/update/bounding.h>
#include <vcg/complex/algorithms/refine.h>
using namespace vcg;
using namespace std;
int main(int , char **)
{
CMesh cm;
CMeshOcf cmof;
tri::Tetrahedron(cm);
tri::Tetrahedron(cmof);
printf("Generated mesh has %i vertices and %i triangular faces\n",cm.vn,cm.fn);
/// Calculates both vertex and face normals.
/// The normal of a vertex v is the weigthed average of the normals of the faces incident on v.
/// normals are not normalized
cmof.face.EnableFFAdjacency();
vcg::tri::UpdateTopology<CMesh >::FaceFace(cm);
vcg::tri::UpdateTopology<CMeshOcf>::FaceFace(cmof);
vcg::tri::UpdateFlags<CMesh >::FaceBorderFromFF(cm);
vcg::tri::UpdateFlags<CMeshOcf>::FaceBorderFromFF(cmof);
vcg::tri::UpdateNormals<CMesh >::PerVertexNormalized(cm);
vcg::tri::UpdateNormals<CMeshOcf>::PerVertexNormalized(cmof);
printf("Normal of face 0 is %f %f %f\n\n",cm.face[0].N()[0],cm.face[0].N()[1],cm.face[0].N()[2]);
int t0=0,t1=0;
while(t1-t0<200)
{
t0=clock();
Refine(cm,MidPointButterfly<CMesh>(),0);
t1=clock();
Refine(cmof,MidPointButterfly<CMeshOcf>(),0);
}
cmof.vert.EnableRadius();
cmof.vert.EnableQuality();
unsigned int hh = 0;
for(CMeshOcf::VertexIterator vi = cmof.vert.begin(); vi!=cmof.vert.end();++vi,++hh){
if(hh%3==0)
vcg::tri::Allocator<CMeshOcf>::DeleteVertex(cmof,*vi);
}
for(CMeshOcf::VertexIterator vi = cmof.vert.begin(); vi!=cmof.vert.end();++vi)
{
if(!(*vi).IsD())
{
float q =vi->Q();
float r =vi->R();
// int ii = vcg::tri::Index(cmof, *vi);
assert(q==r);
}
}
tri::Allocator<CMeshOcf>::CompactVertexVector(cmof);
tri::UpdateBounding<CMeshOcf>::Box(cmof);
for(CMeshOcf::VertexIterator vi = cmof.vert.begin(); vi!=cmof.vert.end();++vi)
{
if(!(*vi).IsD())
{
float q =vi->Q();
float r =vi->R();
// int ii = vcg::tri::Index(cmof, *vi);
assert(q==r);
}
}
return 0;
}