109 lines
4.6 KiB
C++
109 lines
4.6 KiB
C++
/****************************************************************************
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* VCGLib o o *
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* Visual and Computer Graphics Library o o *
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* _ O _ *
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* Copyright(C) 2004-2012 \/)\/ *
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* Visual Computing Lab /\/| *
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* ISTI - Italian National Research Council | *
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* \ *
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* All rights reserved. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
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* for more details. *
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* *
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****************************************************************************/
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/*! \file trimesh_clustering.cpp
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\ingroup code_sample
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\brief a minimal example of a clustering based simplification
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*/
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#include<vcg/complex/complex.h>
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#include <vcg/complex/algorithms/update/bounding.h>
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#include <vcg/complex/algorithms/update/topology.h>
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#include <vcg/complex/algorithms/update/normal.h>
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#include <vcg/complex/algorithms/update/flag.h>
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#include <vcg/complex/algorithms/clustering.h>
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// input output
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#include <wrap/io_trimesh/import.h>
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#include <wrap/io_trimesh/export.h>
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class MyFace;
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class MyVertex;
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struct MyUsedTypes : public vcg::UsedTypes< vcg::Use<MyVertex>::AsVertexType, vcg::Use<MyFace>::AsFaceType>{};
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class MyVertex : public vcg::Vertex< MyUsedTypes, vcg::vertex::Coord3f, vcg::vertex::Normal3f, vcg::vertex::BitFlags >{};
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class MyFace : public vcg::Face < MyUsedTypes, vcg::face::VertexRef, vcg::face::Normal3f, vcg::face::BitFlags > {};
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class MyMesh : public vcg::tri::TriMesh< std::vector<MyVertex>, std::vector<MyFace> > {};
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int main(int argc, char **argv)
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{
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if(argc<3)
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{
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printf(
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"Usage: trimesh_clustering filein.ply fileout.ply [opt] \n"
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"options: \n"
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"-k cellnum approx number of cluster that should be defined; (default 10e5)\n"
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"-s size in absolute units the size of the clustering cell (override the previous param)\n"
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"-d enable the duplication of faces for double surfaces\n"
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);
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exit(0);
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}
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int CellNum=100000;
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float CellSize=0;
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bool DupFace=false;
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int i=3;
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while(i<argc)
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{
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if(argv[i][0]!='-')
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{ printf("Error unable to parse option '%s'\n",argv[i]); exit(0); }
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switch(argv[i][1])
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{
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case 'k' : CellNum=atoi(argv[i+1]); ++i; printf("Using %i clustering cells\n",CellNum); break;
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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;
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default : {printf("Error unable to parse option '%s'\n",argv[i]); exit(0);}
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}
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++i;
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}
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MyMesh m;
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if(vcg::tri::io::ImporterPLY<MyMesh>::Open(m,argv[1])!=0)
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{
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printf("Error reading file %s\n",argv[1]);
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exit(0);
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}
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vcg::tri::UpdateBounding<MyMesh>::Box(m);
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vcg::tri::UpdateNormal<MyMesh>::PerFace(m);
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printf("Input mesh vn:%i fn:%i\n",m.VN(),m.FN());
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vcg::tri::Clustering<MyMesh, vcg::tri::AverageColorCell<MyMesh> > Grid;
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Grid.DuplicateFaceParam=DupFace;
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Grid.Init(m.bbox,CellNum,CellSize);
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printf("Clustering to %i cells\n",Grid.Grid.siz[0]*Grid.Grid.siz[1]*Grid.Grid.siz[2] );
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printf("Grid of %i x %i x %i cells\n",Grid.Grid.siz[0],Grid.Grid.siz[1],Grid.Grid.siz[2]);
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printf("with cells size of %.2f x %.2f x %.2f units\n",Grid.Grid.voxel[0],Grid.Grid.voxel[1],Grid.Grid.voxel[2]);
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Grid.AddMesh(m);
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Grid.ExtractMesh(m);
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printf("Output mesh vn:%i fn:%i\n",m.VN(),m.FN());
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vcg::tri::io::ExporterPLY<MyMesh>::Save(m,argv[2]);
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return 0;
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}
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