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vtkMeanValueCoordinatesInterpolator Class Reference

compute interpolation computes for closed triangular mesh More...

#include <vtkMeanValueCoordinatesInterpolator.h>

Inherits vtkObject.

Static Public Member Functions

static void ComputeInterpolationWeights (double x[3], vtkPoints *pts, vtkIdList *tris, double *weights)
 

Static Protected Member Functions

static void ComputeInterpolationWeightsForTriangleMesh (double x[3], vtkPoints *pts, vtkMVCTriIterator &iter, double *weights)
 
static void ComputeInterpolationWeightsForPolygonMesh (double x[3], vtkPoints *pts, vtkMVCPolyIterator &iter, double *weights)
 
typedef vtkObject Superclass
 
static
vtkMeanValueCoordinatesInterpolator
New ()
 
static int IsTypeOf (const char *type)
 
static
vtkMeanValueCoordinatesInterpolator
SafeDownCast (vtkObjectBase *o)
 
virtual int IsA (const char *type)
 
vtkMeanValueCoordinatesInterpolatorNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent)
 
virtual vtkObjectBase * NewInstanceInternal () const
 
static void ComputeInterpolationWeights (double x[3], vtkPoints *pts, vtkCellArray *tris, double *weights)
 
 vtkMeanValueCoordinatesInterpolator ()
 
 ~vtkMeanValueCoordinatesInterpolator ()
 

Detailed Description

compute interpolation computes for closed triangular mesh

vtkMeanValueCoordinatesInterpolator computes interpolation weights for a closed, manifold polyhedron mesh. Once computed, the interpolation weights can be used to interpolate data anywhere interior or exterior to the mesh. This work implements two MVC algorithms. The first one is for triangular meshes which is documented in the Siggraph 2005 paper by Tao Ju, Scot Schaefer and Joe Warren from Rice University "Mean Value Coordinates for Closed Triangular Meshes". The second one is for general polyhedron mesh which is documented in the Eurographics Symposium on Geometry Processing 2006 paper by Torsten Langer, Alexander Belyaev and Hans-Peter Seidel from MPI Informatik "Spherical Barycentric Coordinates". The filter will automatically choose which algorithm to use based on whether the input mesh is triangulated or not.

In VTK this class was initially created to interpolate data across polyhedral cells. In addition, the class can be used to interpolate data values from a polyhedron mesh, and to smoothly deform a mesh from an associated control mesh.

See Also
vtkPolyhedralCell

Definition at line 57 of file vtkMeanValueCoordinatesInterpolator.h.

Member Typedef Documentation

Standard instantiable class methods.

Definition at line 63 of file vtkMeanValueCoordinatesInterpolator.h.

Constructor & Destructor Documentation

vtkMeanValueCoordinatesInterpolator::vtkMeanValueCoordinatesInterpolator ( )
protected

Method to generate interpolation weights for a point x[3] from a list of polygonal faces. In this version of the method, the faces are defined by a vtkPoints array plus a vtkCellArray, where the vtkCellArray contains all faces and is of format [nFace0Pts, pid1, pid2, pid3,..., nFace1Pts, pid1, pid2, pid3,...]. Note: the number of weights must equal the number of points.

vtkMeanValueCoordinatesInterpolator::~vtkMeanValueCoordinatesInterpolator ( )
protected

Method to generate interpolation weights for a point x[3] from a list of polygonal faces. In this version of the method, the faces are defined by a vtkPoints array plus a vtkCellArray, where the vtkCellArray contains all faces and is of format [nFace0Pts, pid1, pid2, pid3,..., nFace1Pts, pid1, pid2, pid3,...]. Note: the number of weights must equal the number of points.

Member Function Documentation

static vtkMeanValueCoordinatesInterpolator* vtkMeanValueCoordinatesInterpolator::New ( )
static

Standard instantiable class methods.

static int vtkMeanValueCoordinatesInterpolator::IsTypeOf ( const char *  type)
static

Standard instantiable class methods.

virtual int vtkMeanValueCoordinatesInterpolator::IsA ( const char *  type)
virtual

Standard instantiable class methods.

static vtkMeanValueCoordinatesInterpolator* vtkMeanValueCoordinatesInterpolator::SafeDownCast ( vtkObjectBase *  o)
static

Standard instantiable class methods.

virtual vtkObjectBase* vtkMeanValueCoordinatesInterpolator::NewInstanceInternal ( ) const
protectedvirtual

Standard instantiable class methods.

vtkMeanValueCoordinatesInterpolator* vtkMeanValueCoordinatesInterpolator::NewInstance ( ) const

Standard instantiable class methods.

void vtkMeanValueCoordinatesInterpolator::PrintSelf ( ostream &  os,
vtkIndent  indent 
)

Standard instantiable class methods.

static void vtkMeanValueCoordinatesInterpolator::ComputeInterpolationWeights ( double  x[3],
vtkPoints *  pts,
vtkIdList *  tris,
double *  weights 
)
static

Method to generate interpolation weights for a point x[3] from a list of triangles. In this version of the method, the triangles are defined by a vtkPoints array plus a vtkIdList, where the vtkIdList is organized such that three ids in order define a triangle. Note that number of weights must equal the number of points.

static void vtkMeanValueCoordinatesInterpolator::ComputeInterpolationWeights ( double  x[3],
vtkPoints *  pts,
vtkCellArray tris,
double *  weights 
)
static

Method to generate interpolation weights for a point x[3] from a list of polygonal faces. In this version of the method, the faces are defined by a vtkPoints array plus a vtkCellArray, where the vtkCellArray contains all faces and is of format [nFace0Pts, pid1, pid2, pid3,..., nFace1Pts, pid1, pid2, pid3,...]. Note: the number of weights must equal the number of points.

static void vtkMeanValueCoordinatesInterpolator::ComputeInterpolationWeightsForTriangleMesh ( double  x[3],
vtkPoints *  pts,
vtkMVCTriIterator &  iter,
double *  weights 
)
staticprotected

Internal method that sets up the processing of triangular meshes.

static void vtkMeanValueCoordinatesInterpolator::ComputeInterpolationWeightsForPolygonMesh ( double  x[3],
vtkPoints *  pts,
vtkMVCPolyIterator &  iter,
double *  weights 
)
staticprotected

Internal method that sets up the processing of general polyhedron meshes.


The documentation for this class was generated from the following file: