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Added Feature edge sampling

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This commit is contained in:
Paolo Cignoni cignoni 2013-06-24 09:36:16 +00:00
parent 8c797abc34
commit 0db5490e37
1 changed files with 16 additions and 7 deletions
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23
src/meshlabplugins/filter_sampling/filter_sampling.cpp
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@ -477,6 +477,9 @@ void FilterDocSampling::initParameterSet(QAction *action, MeshDocument & md, Ric
"Exact Sample Num",
"If the required total number of samples is not a strict exact requirement we can exploit a different algorithm"
"based on the choice of the number of samples inside each triangle by a random Poisson-distributed number with mean equal to the expected number of samples times the area of the triangle over the surface of the whole mesh."));
parlst.addParam(new RichBool("EdgeSampling", true,
"Sample CreaseEdge Only",
"Restrict the sampling process to the crease edges only. Useful to sample in a more accurate way the feature edges of a mechanical mesh."));
break;
case FP_STRATIFIED_SAMPLING :
parlst.addParam(new RichInt ("SampleNum", std::max(100000,md.mm()->cm.vn),
@ -519,7 +522,6 @@ void FilterDocSampling::initParameterSet(QAction *action, MeshDocument & md, Ric
parlst.addParam(new RichInt("SampleNum", md.mm()->cm.vn/10, "Number of samples", "The desired number of elements that must be chosen. Being a subsampling of the original elements if this number should not be larger than the number of elements of the original mesh."));
break;
case FP_POISSONDISK_SAMPLING :
parlst.addParam(new RichInt("SampleNum", 1000, "Number of samples", "The desired number of samples. The ray of the disk is calculated according to the sampling density."));
parlst.addParam(new RichAbsPerc("Radius", 0, 0, md.mm()->cm.bbox.Diag(), "Explicit Radius", "If not zero this parameter override the previous parameter to allow exact radius specification"));
parlst.addParam(new RichInt("MontecarloRate", 20, "MonterCarlo OverSampling", "The over-sampling rate that is used to generate the intial Montecarlo samples (e.g. if this parameter is <i>K</i> means that<i>K</i> x <i>poisson sample</i> points will be used). The generated Poisson-disk samples are a subset of these initial Montecarlo samples. Larger this number slows the process but make it a bit more accurate."));
@ -688,7 +690,7 @@ bool FilterDocSampling::applyFilter(QAction *action, MeshDocument &md, RichParam
switch(par.getEnum("Sampling"))
{
case 0 : tri::SurfaceSampling<CMeshO,BaseSampler>::VertexUniform(curMM->cm,mps,par.getInt("SampleNum")); break;
case 1 : tri::SurfaceSampling<CMeshO,BaseSampler>::EdgeUniform(curMM->cm,mps,false); break;
case 1 : tri::SurfaceSampling<CMeshO,BaseSampler>::EdgeUniform(curMM->cm,mps,par.getInt("SampleNum"),true); break;
case 2 : tri::SurfaceSampling<CMeshO,BaseSampler>::AllFace(curMM->cm,mps); break;
}
vcg::tri::UpdateBounding<CMeshO>::Box(mm->cm);
@ -728,12 +730,19 @@ bool FilterDocSampling::applyFilter(QAction *action, MeshDocument &md, RichParam
MeshModel *curMM= md.mm();
MeshModel *mm= md.addNewMesh("","Montecarlo Samples"); // After Adding a mesh to a MeshDocument the new mesh is the current one
mm->updateDataMask(curMM);
BaseSampler mps(&(mm->cm));
if(par.getBool("Weighted"))
tri::SurfaceSampling<CMeshO,BaseSampler>::WeightedMontecarlo(curMM->cm,mps,par.getInt("SampleNum"));
else if(par.getBool("ExactNum")) tri::SurfaceSampling<CMeshO,BaseSampler>::Montecarlo(curMM->cm,mps,par.getInt("SampleNum"));
else tri::SurfaceSampling<CMeshO,BaseSampler>::MontecarloPoisson(curMM->cm,mps,par.getInt("SampleNum"));
if(par.getBool("EdgeSampling"))
{
tri::SurfaceSampling<CMeshO,BaseSampler>::EdgeMontecarlo(curMM->cm,mps,par.getInt("SampleNum"),false);
}
else
{
if(par.getBool("Weighted"))
tri::SurfaceSampling<CMeshO,BaseSampler>::WeightedMontecarlo(curMM->cm,mps,par.getInt("SampleNum"));
else if(par.getBool("ExactNum")) tri::SurfaceSampling<CMeshO,BaseSampler>::Montecarlo(curMM->cm,mps,par.getInt("SampleNum"));
else tri::SurfaceSampling<CMeshO,BaseSampler>::MontecarloPoisson(curMM->cm,mps,par.getInt("SampleNum"));
}
vcg::tri::UpdateBounding<CMeshO>::Box(mm->cm);
Log("Sampling created a new mesh of %i points",md.mm()->cm.vn);