97 lines
4.3 KiB
C++
97 lines
4.3 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) 2004-2016 \/)\/ *
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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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#include<vcg/complex/complex.h>
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#include<wrap/io_trimesh/import.h>
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#include<wrap/io_trimesh/export.h>
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#include<vcg/complex/algorithms/point_sampling.h>
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#include<vcg/complex/algorithms/clustering.h>
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using namespace vcg;
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using namespace std;
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class MyEdge;
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class MyFace;
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class MyVertex;
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struct MyUsedTypes : public UsedTypes< Use<MyVertex> ::AsVertexType,
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Use<MyEdge> ::AsEdgeType,
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Use<MyFace> ::AsFaceType>{};
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class MyVertex : public Vertex<MyUsedTypes, vertex::Coord3f, vertex::Normal3f, vertex::BitFlags >{};
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class MyFace : public Face< MyUsedTypes, face::FFAdj, face::Normal3f, face::VertexRef, face::BitFlags > {};
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class MyEdge : public Edge<MyUsedTypes>{};
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class MyMesh : public tri::TriMesh< vector<MyVertex>, vector<MyFace> , vector<MyEdge> > {};
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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("Usage trimesh_base <meshfilename> radius (as perc) (\n");
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return -1;
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}
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MyMesh m;
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MyMesh subM;
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MyMesh cluM;
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MyMesh rndM;
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tri::MeshSampler<MyMesh> mps(subM);
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tri::MeshSampler<MyMesh> mrs(rndM);
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if(tri::io::Importer<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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tri::SurfaceSampling<MyMesh,tri::TrivialSampler<MyMesh> >::SamplingRandomGenerator().initialize(time(0));
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float perc = atof(argv[2]);
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float radius = m.bbox.Diag() * perc;
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printf("Subsampling a PointCloud of %i vert with %f radius\n",m.VN(),radius);
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tri::SurfaceSampling<MyMesh,tri::MeshSampler<MyMesh> >::PoissonDiskParam pp;
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pp.bestSampleChoiceFlag=false;
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tri::SurfaceSampling<MyMesh,tri::MeshSampler<MyMesh> >::PoissonDiskPruning(mps, m, radius, pp);
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tri::io::ExporterPLY<MyMesh>::Save(subM,"PoissonMesh.ply");
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printf("Sampled %i vertices in %5.2f\n",subM.VN(), float(pp.pds.pruneTime+pp.pds.gridTime)/float(CLOCKS_PER_SEC));
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int t0=clock();
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tri::Clustering<MyMesh, vcg::tri::AverageColorCell<MyMesh> > ClusteringGrid;
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ClusteringGrid.Init(m.bbox,100000,radius*sqrt(2.0f));
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ClusteringGrid.AddPointSet(m);
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ClusteringGrid.ExtractMesh(cluM);
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int t1=clock();
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tri::io::ExporterPLY<MyMesh>::Save(cluM,"ClusterMesh.ply");
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printf("Sampled %i vertices in %5.2f\n",cluM.VN(), float(t1-t0)/float(CLOCKS_PER_SEC));
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int t2=clock();
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int sampleNum = (cluM.VN()+subM.VN())/2;
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tri::SurfaceSampling<MyMesh,tri::MeshSampler<MyMesh> >::VertexUniform(m, mrs,sampleNum);
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int t3=clock();
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tri::io::ExporterPLY<MyMesh>::Save(rndM,"RandomMesh.ply");
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printf("Sampled %i vertices in %5.2f\n",rndM.VN(), float(t3-t2)/float(CLOCKS_PER_SEC));
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return 0;
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}
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