mitk::ACVD Namespace Reference

Classes
class	RemeshFilter
	Encapsulates mitk::ACVD::Remesh function as filter. More...

Functions
MITKREMESHING_EXPORT Surface::Pointer	Remesh (Surface::ConstPointer surface, unsigned int t, int numVertices, double gradation, int subsampling=10, double edgeSplitting=0.0, int optimizationLevel=1, bool forceManifold=false, bool boundaryFixing=false)
	Remesh a surface and store the result in a new surface. More...

Function Documentation

mitk::Surface::Pointer mitk::ACVD::Remesh	(	Surface::ConstPointer	surface,
		unsigned int	t,
		int	numVertices,
		double	gradation,
		int	subsampling = 10,
		double	edgeSplitting = 0.0,
		int	optimizationLevel = 1,
		bool	forceManifold = false,
		bool	boundaryFixing = false
	)

Remesh a surface and store the result in a new surface.

The ACVD library is used for remeshing which is based on the paper "Approximated Centroidal Voronoi Diagrams for Uniform Polygonal Mesh Coarsening" by S. Valette, and J. M. Chassery. There are a few rules of thumbs regarding the ranges of parameters to gain high quality remeshed surfaces:

• numVertices is exact, however, if boundaryFixing is enabled, additional vertices are generated at boundaries
• Set gradation to zero in case you want polygons of roughly the same size all over the remeshed surface; start with 1 otherwise
• subsampling has direct influence on the quality of the remeshed surface (higher values take more time)
• edgeSplitting is useful for surfaces that contain long and thin triangles but takes a long time
• Leave optimizationLevel set to 1 as greater values result in degenerated polygons
• Irregular shrinking of boundaries during remeshing can be avoided by boundaryFixing, however this results in additional, lower quality polygons at boundaries

Parameters

[in]	surface	Input surface.
[in]	t	Time step of a four-dimensional input surface, zero otherwise.
[in]	numVertices	Desired number of vertices in the remeshed surface, set to zero to keep original vertex count.
[in]	gradation	Influence of surface curvature on polygon size.
[in]	subsampling	Subsample input surface until number of vertices exceeds initial count times this parameter.
[in]	edgeSplitting	Recursively split edges that are longer than the average edge length times this parameter.
[in]	optimizationLevel	Minimize distance between input surface and remeshed surface.
[in]	boundaryFixing	Keep original surface boundaries by adding additional polygons.

Returns

Returns the remeshed surface or NULL if input surface is invalid.

Definition at line 74 of file mitkACVD.cpp.

References MITK_INFO, mitk::New(), and ValidateSurface().

Referenced by mitk::ACVD::RemeshFilter::GenerateData().