vcglib/apps/sample/trimesh_clustering/trimesh_clustering.cpp

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// mesh definition
//#include <vcg/simplex/vertex/with/vn.h>
//#include <vcg/simplex/face/with/af.h>
//#include <vcg/complex/trimesh/base.h>
#include<vcg/simplex/vertexplus/base.h>
#include<vcg/simplex/faceplus/base.h>
#include<vcg/simplex/face/topology.h>
#include<vcg/complex/trimesh/base.h>
#include <vcg/complex/trimesh/update/bounding.h>
#include <vcg/complex/trimesh/update/topology.h>
#include <vcg/complex/trimesh/update/normal.h>
#include <vcg/complex/trimesh/update/flag.h>
#include <vcg/complex/trimesh/clustering.h>
// input output
#include <wrap/io_trimesh/import_ply.h>
#include <wrap/io_trimesh/export_ply.h>
// std
#include <vector>
#include <time.h>
using namespace vcg;
using namespace std;
class MyEdge; // dummy prototype never used
class MyFace;
class MyVertex;
class MyVertex : public VertexSimp2< MyVertex, MyEdge, MyFace, vert::Coord3f, vert::Normal3f, vert::BitFlags >{};
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class MyFace : public FaceSimp2 < MyVertex, MyEdge, MyFace, face::VertexRef, face::Normal3f, face::BitFlags > {};
class MyMesh : public vcg::tri::TriMesh< vector<MyVertex>, vector<MyFace> > {};
int main(int argc, char **argv)
{
if(argc<3)
{
printf(
"\n trimesh_clustering ("__DATE__")\n"
" Visual Computing Group I.S.T.I. C.N.R.\n"
"Usage: PlyRefine filein.ply fileout.ply [opt] \n"
"options: \n"
"-k cellnum approx number of cluster that should be defined; (default 10e5)\n"
"-s size in absolute units the size of the clustering cell\n"
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"-d enable the duplication of faces for double surfaces\n"
);
exit(0);
}
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int i=3;
int CellNum=100000;
float CellSize=0;
bool DupFace=false;
while(i<argc)
{
if(argv[i][0]!='-')
{printf("Error unable to parse option '%s'\n",argv[i]); exit(0);}
switch(argv[i][1])
{
case 'k' : CellNum=atoi(argv[i+1]); ++i; printf("Using %i clustering cells\n",CellNum); break;
case 's' : CellSize=atof(argv[i+1]); ++i; printf("Using %5f as clustering cell size\n",CellSize); break;
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case 'd' : DupFace=true; printf("Enabling the duplication of faces for double surfaces\n"); break;
default : {printf("Error unable to parse option '%s'\n",argv[i]); exit(0);}
}
++i;
}
MyMesh m;
if(vcg::tri::io::ImporterPLY<MyMesh>::Open(m,argv[1])!=0)
{
printf("Error reading file %s\n",argv[1]);
exit(0);
}
vcg::tri::UpdateBounding<MyMesh>::Box(m);
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//vcg::tri::UpdateNormals<MyMesh>::PerVertexNormalized(m);
vcg::tri::UpdateNormals<MyMesh>::PerFace(m);
printf("Input mesh vn:%i fn:%i\n",m.vn,m.fn);
vcg::tri::Clustering<MyMesh, vcg::tri::AverageCell<MyMesh> > Grid;
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Grid.DuplicateFaceParam=DupFace;
Grid.Init(m.bbox,CellNum,CellSize);
printf("Clustering to %i cells\n",Grid.Grid.siz[0]*Grid.Grid.siz[1]*Grid.Grid.siz[2] );
printf("Grid of %i x %i x %i cells\n",Grid.Grid.siz[0],Grid.Grid.siz[1],Grid.Grid.siz[2]);
printf("with cells size of %.2f x %.2f x %.2f units\n",Grid.Grid.voxel[0],Grid.Grid.voxel[1],Grid.Grid.voxel[2]);
int t0=clock();
Grid.Add(m);
int t1=clock();
Grid.Extract(m);
int t2=clock();
printf("Output mesh vn:%i fn:%i\n",m.vn,m.fn);
printf("Simplified in :%i msec (%i+%i)\n",t2-t0,t1-t0,t2-t1);
vcg::tri::io::PlyInfo pi;
vcg::tri::io::ExporterPLY<MyMesh>::Save(m,argv[2],pi.mask);
return 0;
}