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Added parameter invertQuality to PoissonDiskSampling in order to invert 

how quality influences density distribution
This commit is contained in:
Paolo Cignoni 2009-03-25 08:22:03 +00:00
parent 499822bc17
commit cf028b728b
1 changed files with 5 additions and 3 deletions
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8
vcg/complex/trimesh/point_sampling.h
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@ -754,9 +754,11 @@ struct PoissonDiskParam
adaptiveRadiusFlag = false;
radiusVariance =1;
MAXLEVELS = 5;
invertQuality = false;
}
bool adaptiveRadiusFlag;
float radiusVariance;
bool invertQuality;
int MAXLEVELS;
};
@ -774,7 +776,7 @@ static int ComputePoissonSampleNum(MetroMesh &origMesh, ScalarType diskRadius)
return sampleNum;
}
static void ComputePoissonSampleRadii(MetroMesh &sampleMesh, ScalarType diskRadius, ScalarType radiusVariance)
static void ComputePoissonSampleRadii(MetroMesh &sampleMesh, ScalarType diskRadius, ScalarType radiusVariance, bool invert)
{
VertexIterator vi;
std::pair<float,float> minmax = tri::Stat<MetroMesh>::ComputePerVertexQualityMinMax( sampleMesh);
@ -784,7 +786,7 @@ static void ComputePoissonSampleRadii(MetroMesh &sampleMesh, ScalarType diskRadi
float deltaRad = maxRad-minRad;
for (vi = sampleMesh.vert.begin(); vi != sampleMesh.vert.end(); vi++)
{
(*vi).Q() = minRad + deltaRad*(((*vi).Q() - minmax.first)/deltaQ);
(*vi).Q() = minRad + deltaRad*((invert ? minmax.second - (*vi).Q() : (*vi).Q() - minmax.first )/deltaQ);
}
}
@ -873,7 +875,7 @@ static void Poissondisk(MetroMesh &origMesh, VertexSampler &ps, MetroMesh &monte
// if we are doing variable density sampling we have to prepare the random samples quality with the correct expected radii.
if(pp.adaptiveRadiusFlag)
ComputePoissonSampleRadii(montecarloMesh, diskRadius, pp.radiusVariance);
ComputePoissonSampleRadii(montecarloMesh, diskRadius, pp.radiusVariance, pp.invertQuality);
do
{