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Improved documentation, templates a point3f as coordtype, added a function for returning the sampled vector

This commit is contained in:
Paolo Cignoni 2016-12-16 23:19:37 +01:00
parent 237ff6f591
commit 6e63061a5a
1 changed files with 19 additions and 9 deletions
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28
vcg/complex/algorithms/point_sampling.h
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@ -105,6 +105,11 @@ private:
std::vector<CoordType> *sampleVec;
bool vectorOwner;
public:
std::vector<CoordType> &SampleVec()
{
return *sampleVec;
}
void AddVert(const VertexType &p)
{
@ -839,11 +844,11 @@ static void EdgeMeshUniform(MeshType &m, VertexSampler &ps, float radius, bool c
/// \brief Sample all the border corner vertices
///
/// It assumes that the border flag have been set over the mesh both for vertex and for faces.
/// All the vertices on the border where the surface forms an angle smaller than the given threshold are sampled.
/// All the vertices on the border where the edges of the boundary of the surface forms an angle smaller than the given threshold are sampled.
///
static void VertexBorderCorner(MeshType & m, VertexSampler &ps, float angleRad)
{
typename MeshType::template PerVertexAttributeHandle <float> angleSumH = tri::Allocator<MeshType>:: template GetPerVertexAttribute<float> (m);
typename MeshType::template PerVertexAttributeHandle<float> angleSumH = tri::Allocator<MeshType>:: template GetPerVertexAttribute<float> (m);
for(VertexIterator vi=m.vert.begin();vi!=m.vert.end();++vi)
angleSumH[vi]=0;
@ -1846,9 +1851,14 @@ static void PoissonDiskPruningByNumber(VertexSampler &ps, MeshType &m,
/// This is the main function that is used to build a poisson distribuition
/// starting from a dense sample cloud.
/// Trivial approach that puts all the samples in a hashed UG and randomly choose a sample
/// starting from a dense sample cloud (the montecarloMesh) by 'pruning' it.
/// it puts all the samples in a hashed UG and randomly choose a sample
/// and remove all the points in the sphere centered on the chosen sample
///
/// You can impose some constraint: all the vertices in the montecarloMesh
/// that are marked with a bool attribute called "fixed" are surely chosen
/// (if you also set the preGenFlag option)
///
static void PoissonDiskPruning(VertexSampler &ps, MeshType &montecarloMesh,
ScalarType diskRadius, PoissonDiskParam &pp)
{
@ -2256,18 +2266,18 @@ void PoissonPruning(MeshType &m, // the mesh that has to be pruned
/// \brief Low level wrapper for Poisson Disk Pruning
///
/// This function simply takes a mesh and a radius and returns a vector
/// of vertex pointers listing the "surviving" points.
//
/// This function simply takes a mesh containing a point cloud to be pruned and a radius
/// It returns a vector of CoordType listing the "surviving" points.
///
template <class MeshType>
void PoissonPruning(MeshType &m, // the mesh that has to be pruned
std::vector<Point3f> &poissonSamples, // the vector that will contain the chosen set of points
std::vector<typename MeshType::CoordType> &poissonSamples, // the vector that will contain the chosen set of points
float radius, unsigned int randSeed=0)
{
std::vector<typename MeshType::VertexPointer> poissonSamplesVP;
PoissonPruning(m,poissonSamplesVP,radius,randSeed);
poissonSamples.resize(poissonSamplesVP.size());
for(size_t i=0;i<poissonSamplesVP.size();++i)
for(size_t i=0;i<poissonSamplesVP.size();++i)
poissonSamples[i]=poissonSamplesVP[i]->P();
}