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added option to the Poisson sampling filter of using an additional mesh as source of already generated samples. 

In this way it is possible to refine existing sampling by using different sample pools
This commit is contained in:
Paolo Cignoni 2010-03-23 07:26:34 +00:00
parent b4857331f6
commit b6cb2fc881
1 changed files with 20 additions and 2 deletions
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22
vcg/complex/trimesh/point_sampling.h
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@ -955,10 +955,14 @@ struct PoissonDiskParam
radiusVariance =1;
MAXLEVELS = 5;
invertQuality = false;
}
preGenFlag = false;
preGenMesh = NULL;
}
bool adaptiveRadiusFlag;
float radiusVariance;
bool invertQuality;
bool preGenFlag; // when generating a poisson distribution, you can initialize the set pof omputed points with ALL the vertices of another mesh. Usefull for building progressive refinements.
MetroMesh *preGenMesh;
int MAXLEVELS;
};
@ -1035,9 +1039,23 @@ static void PoissonDiskPruning(MetroMesh &origMesh, VertexSampler &ps, MetroMesh
#ifdef QT_VERSION
qDebug("PDS: Completed creation of activeCells, %i cells (%i msec)", montecarloSHT.AllocatedCells.size(), tt.restart());
#endif
int removedCnt=0;
if(pp.preGenFlag)
{
// Initial pass for pruning the Hashed grid with the an eventual pre initialized set of samples
for(VertexIterator vi =pp.preGenMesh->vert.begin(); vi!=pp.preGenMesh->vert.end();++vi)
{
ps.AddVert(*vi);
removedCnt += montecarloSHT.RemoveInSphere(vi->cP(),diskRadius);
}
montecarloSHT.UpdateAllocatedCells();
#ifdef QT_VERSION
qDebug("Removed %i samples in %i",removedCnt,tt.restart());
#endif
}
while(!montecarloSHT.AllocatedCells.empty())
{
int removedCnt=0;
removedCnt=0;
for (size_t i = 0; i < montecarloSHT.AllocatedCells.size(); i++)
{
if( montecarloSHT.EmptyCell(montecarloSHT.AllocatedCells[i]) ) continue;