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Added sample for point cloud subsampling

This commit is contained in:
Paolo Cignoni 2013-09-11 11:08:23 +00:00
parent 0263e6df9d
commit e04875d33d
2 changed files with 92 additions and 0 deletions
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89
apps/sample/trimesh_pointcloud_sampling/trimesh_pointcloud_sampling.cpp Normal file
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/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004-2012 \/)\/ *
* 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. *
* *
****************************************************************************/
#include<vcg/complex/complex.h>
#include<wrap/io_trimesh/import.h>
#include<wrap/io_trimesh/export.h>
#include<vcg/complex/algorithms/point_sampling.h>
#include<vcg/complex/algorithms/create/platonic.h>
#include<vcg/complex/algorithms/clustering.h>
using namespace vcg;
using namespace std;
class MyEdge;
class MyFace;
class MyVertex;
struct MyUsedTypes : public UsedTypes< Use<MyVertex> ::AsVertexType,
Use<MyEdge> ::AsEdgeType,
Use<MyFace> ::AsFaceType>{};
class MyVertex : public Vertex<MyUsedTypes, vertex::Coord3f, vertex::Normal3f, vertex::BitFlags >{};
class MyFace : public Face< MyUsedTypes, face::FFAdj, face::Normal3f, face::VertexRef, face::BitFlags > {};
class MyEdge : public Edge<MyUsedTypes>{};
class MyMesh : public tri::TriMesh< vector<MyVertex>, vector<MyFace> , vector<MyEdge> > {};
int main( int argc, char **argv )
{
if(argc<3)
{
printf("Usage trimesh_base <meshfilename> radius (as perc) (\n");
return -1;
}
MyMesh m;
MyMesh subM;
MyMesh cluM;
MyMesh rndM;
tri::MeshSampler<MyMesh> mps(subM);
if(tri::io::Importer<MyMesh>::Open(m,argv[1])!=0)
{
printf("Error reading file %s\n",argv[1]);
exit(0);
}
tri::SurfaceSampling<MyMesh,tri::TrivialSampler<MyMesh> >::SamplingRandomGenerator().initialize(time(0));
float perc = atof(argv[2]);
float radius = m.bbox.Diag() * perc;
printf("Subsampling a PointCloud of %i vert with %f radius\n",m.VN(),radius);
tri::SurfaceSampling<MyMesh,tri::MeshSampler<MyMesh> >::PoissonDiskParam pp;
tri::SurfaceSampling<MyMesh,tri::MeshSampler<MyMesh> >::PoissonDiskParam::Stat pds; pp.pds=&pds;
pp.bestSampleChoiceFlag=false;
tri::SurfaceSampling<MyMesh,tri::MeshSampler<MyMesh> >::PoissonDiskPruning(mps, m, radius, pp);
tri::io::ExporterPLY<MyMesh>::Save(subM,"PoissonMesh.ply");
printf("Sampled %i vertices in %5.2f\n",subM.VN(), float(pds.pruneTime+pds.gridTime)/float(CLOCKS_PER_SEC));
int t0=clock();
tri::Clustering<MyMesh, vcg::tri::AverageColorCell<MyMesh> > ClusteringGrid;
ClusteringGrid.Init(m.bbox,100000,radius);
ClusteringGrid.AddPointSet(m);
ClusteringGrid.ExtractMesh(cluM);
int t1=clock();
tri::io::ExporterPLY<MyMesh>::Save(cluM,"ClusterMesh.ply");
printf("Sampled %i vertices in %5.2f\n",cluM.VN(), float(t1-t0)/float(CLOCKS_PER_SEC));
return 0;
}

3
apps/sample/trimesh_pointcloud_sampling/trimesh_pointcloud_sampling.pro Normal file
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include(../common.pri)
TARGET = trimesh_pointcloud_sampling
SOURCES += trimesh_pointcloud_sampling.cpp ../../../wrap/ply/plylib.cpp