104 lines
4.4 KiB
C++
104 lines
4.4 KiB
C++
/****************************************************************************
|
|
* VCGLib o o *
|
|
* Visual and Computer Graphics Library o o *
|
|
* _ O _ *
|
|
* Copyright(C) 2004-2016 \/)\/ *
|
|
* Visual Computing Lab /\/| *
|
|
* ISTI - Italian National Research Council | *
|
|
* \ *
|
|
* All rights reserved. *
|
|
* *
|
|
* This program is free software; you can redistribute it and/or modify *
|
|
* it under the terms of the GNU General Public License as published by *
|
|
* the Free Software Foundation; either version 2 of the License, or *
|
|
* (at your option) any later version. *
|
|
* *
|
|
* This program is distributed in the hope that it will be useful, *
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
|
|
* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
|
|
* for more details. *
|
|
* *
|
|
****************************************************************************/
|
|
/*! \file trimesh_clustering.cpp
|
|
\ingroup code_sample
|
|
|
|
\brief a minimal example of a clustering based simplification
|
|
|
|
*/
|
|
#include<vcg/complex/complex.h>
|
|
|
|
#include <vcg/complex/algorithms/clustering.h>
|
|
|
|
#include <wrap/io_trimesh/import.h>
|
|
#include <wrap/io_trimesh/export.h>
|
|
|
|
class MyFace;
|
|
class MyVertex;
|
|
|
|
struct MyUsedTypes : public vcg::UsedTypes< vcg::Use<MyVertex>::AsVertexType, vcg::Use<MyFace>::AsFaceType>{};
|
|
|
|
class MyVertex : public vcg::Vertex< MyUsedTypes, vcg::vertex::Coord3f, vcg::vertex::Normal3f, vcg::vertex::BitFlags >{};
|
|
class MyFace : public vcg::Face < MyUsedTypes, vcg::face::VertexRef, vcg::face::Normal3f, vcg::face::BitFlags > {};
|
|
class MyMesh : public vcg::tri::TriMesh< std::vector<MyVertex>, std::vector<MyFace> > {};
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
if(argc<3)
|
|
{
|
|
printf(
|
|
"Usage: trimesh_clustering 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 (override the previous param)\n"
|
|
"-d enable the duplication of faces for double surfaces\n"
|
|
);
|
|
exit(0);
|
|
}
|
|
|
|
int CellNum=100000;
|
|
float CellSize=0;
|
|
bool DupFace=false;
|
|
|
|
int i=3;
|
|
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;
|
|
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);
|
|
vcg::tri::UpdateNormal<MyMesh>::PerFace(m);
|
|
printf("Input mesh vn:%i fn:%i\n",m.VN(),m.FN());
|
|
vcg::tri::Clustering<MyMesh, vcg::tri::AverageColorCell<MyMesh> > Grid;
|
|
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]);
|
|
|
|
Grid.AddMesh(m);
|
|
Grid.ExtractMesh(m);
|
|
printf("Output mesh vn:%i fn:%i\n",m.VN(),m.FN());
|
|
|
|
vcg::tri::io::ExporterPLY<MyMesh>::Save(m,argv[2]);
|
|
return 0;
|
|
}
|