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improved the disk coloring filter to better manage the variable radius disk sampling

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This commit is contained in:
Paolo Cignoni cignoni 2009-01-29 01:06:01 +00:00
parent e31c3b25aa
commit 70f06bdbae
1 changed files with 30 additions and 7 deletions
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37
src/meshlabplugins/filter_sampling/filter_sampling.cpp
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@ -557,6 +557,7 @@ void FilterDocSampling::initParameterSet(QAction *action, MeshDocument & md, Fil
float Diag = md.mm()->cm.bbox.Diag();
parlst.addDynamicFloat("Radius", Diag/10.0f, 0.0f, Diag/3.0f, MeshModel::MM_VERTCOLOR, tr("Radius"),
"the radius of the spheres centered in the VertexMesh seeds ");
parlst.addBool("SampleRadius", false, "Use sample radius", "Use the radius that is stored in each sample of the vertex mesh. Useful for displaing the variable disk sampling results");
} else {
parlst.addBool ("backward", false, "BackDistance",
"If true the mesh is colored according the distance from the frontier of the voonoi diagram induced by the VertexMesh seeds.");
@ -884,18 +885,40 @@ bool FilterDocSampling::applyFilter(QAction *action, MeshDocument &md, FilterPar
MeshModel* mmV = par.getMesh("VertexMesh"); // surface that is sought for the closest point to each sample.
typedef vcg::SpatialHashTable<CMeshO::VertexType, float> SampleSHT;
SampleSHT sht;
sht.Set(mmV->cm.vert.begin(),mmV->cm.vert.end(),mmV->cm.bbox);
tri::VertTmark<CMeshO> markerFunctor;
tri::VertTmark<CMeshO> markerFunctor;
typedef vcg::vertex::PointDistanceFunctor<float> VDistFunct;
VDistFunct distFunctor;
Point3f closestPt;
tri::UpdateColor<CMeshO>::VertexConstant(mmM->cm, Color4b::LightGray);
float dist, dist_upper_bound= par.getDynamicFloat("Radius");
for(CMeshO::VertexIterator vim = mmM->cm.vert.begin(); vim!= mmM->cm.vert.end(); ++vim) if(!(*vim).IsD())
if(par.getBool("SampleRadius"))
{
CMeshO::VertexPointer nearestV = sht.GetClosest(distFunctor,markerFunctor,(*vim).cP(),dist_upper_bound,dist,closestPt);
if(nearestV) vim->C()=Color4b::Red;
sht.Set(mmM->cm.vert.begin(),mmM->cm.vert.end(),mmM->cm.bbox);
std::vector<CMeshO::VertexType*> closests;
for(CMeshO::VertexIterator viv = mmV->cm.vert.begin(); viv!= mmV->cm.vert.end(); ++viv) if(!(*viv).IsD())
{
Point3f p = viv->cP();
float radius = viv->Q();
Box3f bb(p-Point3f(radius,radius,radius),p+Point3f(radius,radius,radius));
GridGetInBox(sht, markerFunctor, bb, closests);
for(int i=0; i<closests.size(); ++i)
{
float dist = Distance(p,closests[i]->cP());
if(dist < radius)
closests[i]->C().lerp(Color4b::White,Color4b::Red,dist/radius);
}
}
}
else // use fixed radius
{
sht.Set(mmV->cm.vert.begin(),mmV->cm.vert.end(),mmV->cm.bbox);
float dist, dist_upper_bound= par.getDynamicFloat("Radius");
for(CMeshO::VertexIterator vim = mmM->cm.vert.begin(); vim!= mmM->cm.vert.end(); ++vim) if(!(*vim).IsD())
{
CMeshO::VertexPointer nearestV = sht.GetClosest(distFunctor,markerFunctor,(*vim).cP(),dist_upper_bound,dist,closestPt);
if(nearestV) vim->C()=Color4b::Red;
}
}
} break;