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slightly changed the trivial sampler to make simpler to use all the sampling strategies to just get a coord vector.

This commit is contained in:
Paolo Cignoni 2009-07-22 05:59:03 +00:00
parent 7396c30640
commit 44fd7bb2ba
1 changed files with 33 additions and 4 deletions
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37
vcg/complex/trimesh/point_sampling.h
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@ -48,6 +48,15 @@ namespace tri
/// Trivial Sampler, an example sampler object that show the required interface used by the sampling class. /// Trivial Sampler, an example sampler object that show the required interface used by the sampling class.
/// Most of the sampling classes call the AddFace method with the face containing the sample and its barycentric coord. /// Most of the sampling classes call the AddFace method with the face containing the sample and its barycentric coord.
/// Beside being an example of how to write a sampler it provides a simple way to use the various sampling classes.
// For example if you just want to get a vector with positions over the surface You have just to write
//
// vector<Point3f> myVec;
// TrivialSampler<MyMesh> ts(myVec)
// SurfaceSampling<MyMesh, TrivialSampler<MyMesh> >::Montecarlo(M, ts, SampleNum);
//
//
template <class MeshType> template <class MeshType>
class TrivialSampler class TrivialSampler
{ {
@ -56,16 +65,36 @@ class TrivialSampler
typedef typename MeshType::VertexType VertexType; typedef typename MeshType::VertexType VertexType;
typedef typename MeshType::FaceType FaceType; typedef typename MeshType::FaceType FaceType;
TrivialSampler(){}; TrivialSampler()
std::vector<CoordType> sampleVec; {
sampleVec = new std::vector<CoordType>();
vectorOwner=true;
};
TrivialSampler(std::vector<CoordType> &Vec)
{
sampleVec = &Vec;
sampleVec->clear();
vectorOwner=false;
};
~TrivialSampler()
{
if(vectorOwner) delete sampleVec;
}
private:
std::vector<CoordType> *sampleVec;
bool vectorOwner;
public:
void AddVert(const VertexType &p) void AddVert(const VertexType &p)
{ {
sampleVec.push_back(p.cP()); sampleVec->push_back(p.cP());
} }
void AddFace(const FaceType &f, const CoordType &p) void AddFace(const FaceType &f, const CoordType &p)
{ {
sampleVec.push_back(f.P(0)*p[0] + f.P(1)*p[1] +f.P(2)*p[2] ); sampleVec->push_back(f.P(0)*p[0] + f.P(1)*p[1] +f.P(2)*p[2] );
} }
void AddTextureSample(const FaceType &, const CoordType &, const Point2i &) void AddTextureSample(const FaceType &, const CoordType &, const Point2i &)