manolas
/
vcglib
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Added new sample on voronoi processing

This commit is contained in:
Paolo Cignoni 2014-03-04 00:41:54 +00:00
parent 2254e98779
commit 2744e1330f
2 changed files with 131 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

123
apps/sample/trimesh_voronoi/trimesh_voronoi.cpp Normal file
View File

@ -0,0 +1,123 @@
/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004-2009 \/)\/ *
* 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 <stdio.h>
#include<vcg/complex/complex.h>
#include<vcg/complex/algorithms/create/platonic.h>
#include<wrap/io_trimesh/import_ply.h>
#include<wrap/io_trimesh/export_off.h>
#include<wrap/io_trimesh/export_ply.h>
#include<wrap/io_trimesh/export_dxf.h>
#include<vcg/complex/algorithms/point_sampling.h>
#include<vcg/complex/algorithms/voronoi_processing.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::VFAdj, vertex::Qualityf, vertex::Color4b, vertex::BitFlags >{};
class MyFace : public Face< MyUsedTypes, face::VertexRef, face::Normal3f, face::Mark, face::BitFlags, face::VFAdj, face::FFAdj > {};
class MyEdge : public Edge< MyUsedTypes, edge::VertexRef, edge::BitFlags>{};
class MyMesh : public tri::TriMesh< vector<MyVertex>, vector<MyEdge>, vector<MyFace> > {};
int main( int argc, char **argv )
{
MyMesh baseMesh,voronoiMesh, voronoiPoly, delaunayMesh;
if(argc < 6 )
{
printf("Usage: trimesh_voronoi mesh [sampleNum] voronoiRelaxIter delaunayRefinementStep delaunayRelaxStep \n");
return -1;
}
int sampleNum = atoi(argv[2]);
int iterNum = atoi(argv[3]);
int refineStep = atoi(argv[4]);
int relaxStep = atoi(argv[5]);
int t0=clock();
int ret= tri::io::ImporterPLY<MyMesh>::Open(baseMesh,argv[1]);
if(ret!=0)
{
printf("Unable to open %s for '%s'\n",argv[1],tri::io::ImporterPLY<MyMesh>::ErrorMsg(ret));
return -1;
}
tri::VoronoiProcessingParameter vpp;
tri::io::ImporterPLY<MyMesh>::Open(baseMesh,argv[1]);
int t1=clock();
printf("Read %30s (%7i vn %7i fn) in %6.3f \n",argv[1],baseMesh.vn,baseMesh.fn,float(t1-t0)/CLOCKS_PER_SEC);
vector<Point3f> pointVec;
float radius;
tri::PoissonSampling<MyMesh>(baseMesh,pointVec,sampleNum,radius);
vector<MyVertex *> seedVec;
tri::VoronoiProcessing<MyMesh>::PreprocessForVoronoi(baseMesh,radius);
tri::VoronoiProcessing<MyMesh>::SeedToVertexConversion(baseMesh,pointVec,seedVec);
int t2=clock();
printf("Preprocessed %30s (%7i vn %7i fn) Computed %i seed (asked %i) (radius %f) in %6.3f\n",
argv[1],baseMesh.vn,baseMesh.fn, seedVec.size(), sampleNum, radius, float(t2-t1)/CLOCKS_PER_SEC);
tri::EuclideanDistance<MyMesh> df;
vpp.geodesicRelaxFlag=false;
int actualIter = tri::VoronoiProcessing<MyMesh>::VoronoiRelaxing(baseMesh, seedVec, iterNum, df, vpp);
int t3=clock();
printf("relaxed %lu seeds for %i(up to %i) iterations in %f secs\n",
seedVec.size(), actualIter, iterNum,float(t3-t2)/CLOCKS_PER_SEC);
MyMesh::PerVertexAttributeHandle<MyVertex *> sources;
sources= tri::Allocator<MyMesh>::GetPerVertexAttribute<MyVertex *> (baseMesh,"sources");
tri::Geodesic<MyMesh>::Compute(baseMesh, seedVec, df,std::numeric_limits<float>::max(),0,&sources);
tri::io::ExporterPLY<MyMesh>::Save(baseMesh,"baseMesh.ply",tri::io::Mask::IOM_VERTCOLOR | tri::io::Mask::IOM_VERTQUALITY );
if(tri::VoronoiProcessing<MyMesh>::CheckVoronoiTopology(baseMesh,seedVec))
{
tri::VoronoiProcessing<MyMesh>::ConvertVoronoiDiagramToMesh(baseMesh,voronoiMesh,voronoiPoly,seedVec, vpp);
}
else
{
printf("WARNING some voronoi region are not disk like; the resulting delaunay triangulation is not manifold.\n");
refineStep=1;
}
tri::VoronoiProcessing<MyMesh>::ConvertDelaunayTriangulationToMesh(baseMesh,delaunayMesh,seedVec,true);
tri::io::ExporterPLY<MyMesh>::Save(delaunayMesh,"delaunayBaseMesh.ply",tri::io::Mask::IOM_VERTCOLOR | tri::io::Mask::IOM_VERTFLAGS,false );
tri::VoronoiProcessing<MyMesh>::RelaxRefineTriangulationSpring(baseMesh,delaunayMesh,refineStep,relaxStep);
int t4=clock();
printf("Refined %i times and relaxed %i to a %i v %i f mesh in %f secs\n",
refineStep, relaxStep, delaunayMesh.vn,delaunayMesh.fn,float(t4-t3)/CLOCKS_PER_SEC);
tri::io::ExporterPLY<MyMesh>::Save(baseMesh,"baseMesh.ply",tri::io::Mask::IOM_VERTCOLOR | tri::io::Mask::IOM_VERTQUALITY );
tri::io::ExporterPLY<MyMesh>::Save(voronoiMesh,"voronoiMesh.ply",tri::io::Mask::IOM_VERTCOLOR );
tri::io::ExporterPLY<MyMesh>::Save(delaunayMesh,"delaunayMesh.ply",tri::io::Mask::IOM_VERTCOLOR | tri::io::Mask::IOM_VERTFLAGS,false );
tri::io::ExporterPLY<MyMesh>::Save(voronoiPoly,"voronoiPoly.ply",tri::io::Mask::IOM_VERTCOLOR | tri::io::Mask::IOM_EDGEINDEX,false);
return 0;
}

8
apps/sample/trimesh_voronoi/trimesh_voronoi.pro Normal file
View File

@ -0,0 +1,8 @@
include(../common.pri)
TARGET = trimesh_voronoi
SOURCES += trimesh_voronoi.cpp ../../../wrap/ply/plylib.cpp
CONFIG(release, debug | release){
DEFINES += NDEBUG
}