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uniform edge resampling: added option to force inter-sample distance to be less than the radius

This commit is contained in:
Luigi Malomo 2015-11-06 17:32:29 +00:00
parent 757039f2b8
commit 35ed4897f6
1 changed files with 5 additions and 3 deletions
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8
vcg/complex/algorithms/point_sampling.h
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@ -639,9 +639,10 @@ static void VertexUniform(MeshType & m, VertexSampler &ps, int sampleNum)
/// ///
/// It assumes that the mesh is 1-manifold. /// It assumes that the mesh is 1-manifold.
/// each connected component is sampled in a independent way. /// each connected component is sampled in a independent way.
/// For each component of lenght <L> we place on it floor(L/radius) samples. /// For each component of lenght <L> we place on it floor(L/radius)+1 samples.
/// (if conservative argument is false we place ceil(L/radius)+1 samples)
/// ///
static void EdgeMeshUniform(MeshType &m, VertexSampler &ps, float radius) static void EdgeMeshUniform(MeshType &m, VertexSampler &ps, float radius, bool conservative = true)
{ {
tri::RequireEEAdjacency(m); tri::RequireEEAdjacency(m);
tri::RequireCompactness(m); tri::RequireCompactness(m);
@ -696,7 +697,8 @@ static void EdgeMeshUniform(MeshType &m, VertexSampler &ps, float radius)
totalLen += Distance(ep.V()->cP(), ep.VFlip()->cP()); totalLen += Distance(ep.V()->cP(), ep.VFlip()->cP());
// Third loop actually perform the sampling. // Third loop actually perform the sampling.
int sampleNum = floor(totalLen / radius); int sampleNum = conservative ? floor(totalLen / radius) : ceil(totalLen / radius);
ScalarType sampleDist = totalLen / sampleNum; ScalarType sampleDist = totalLen / sampleNum;
// printf("Found a chain of %f with %i samples every %f (%f)\n", totalLen, sampleNum, sampleDist, radius); // printf("Found a chain of %f with %i samples every %f (%f)\n", totalLen, sampleNum, sampleDist, radius);