vtkReebGraphSimplificationMetric Class Reference

#include <vtkReebGraphSimplificationMetric.h>

Inheritance diagram for vtkReebGraphSimplificationMetric:

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List of all members.


Detailed Description

abstract class for custom Reeb graph simplification metric design.

This class makes it possible to design customized simplification metric evaluation algorithms, enabling the user to control the definition of what should be considered as noise or signal in the topological filtering process.

References: "Topological persistence and simplification", H. Edelsbrunner, D. Letscher, and A. Zomorodian, Discrete Computational Geometry, 28:511-533, 2002.

"Extreme elevation on a 2-manifold", P.K. Agarwal, H. Edelsbrunner, J. Harer, and Y. Wang, ACM Symposium on Computational Geometry, pp. 357-365, 2004.

"Simplifying flexible isosurfaces using local geometric measures", H. Carr, J. Snoeyink, M van de Panne, IEEE Visualization, 497-504, 2004

"Loop surgery for volumetric meshes: Reeb graphs reduced to contour trees", J. Tierny, A. Gyulassy, E. Simon, V. Pascucci, IEEE Trans. on Vis. and Comp. Graph. (Proc of IEEE VIS), 15:1177-1184, 2009.

See Graphics/Testing/Cxx/TestReebGraph.cxx for an example of concrete implemetnation.

Tests:
vtkReebGraphSimplificationMetric (Tests)

Definition at line 57 of file vtkReebGraphSimplificationMetric.h.


Public Types

typedef vtkObject Superclass

Public Member Functions

virtual const char * GetClassName ()
virtual int IsA (const char *type)
void PrintSelf (ostream &os, vtkIndent indent)
virtual void SetLowerBound (double)
virtual double GetLowerBound ()
virtual void SetUpperBound (double)
virtual double GetUpperBound ()
virtual double ComputeMetric (vtkDataSet *mesh, vtkDataArray *field, vtkIdType startCriticalPoint, vtkAbstractArray *vertexList, vtkIdType endCriticalPoint)

Static Public Member Functions

static
vtkReebGraphSimplificationMetric
New ()
static int IsTypeOf (const char *type)
static
vtkReebGraphSimplificationMetric
SafeDownCast (vtkObject *o)

Protected Member Functions

 vtkReebGraphSimplificationMetric ()
 ~vtkReebGraphSimplificationMetric ()

Protected Attributes

double LowerBound
double UpperBound

Member Typedef Documentation

Reimplemented from vtkObject.

Definition at line 62 of file vtkReebGraphSimplificationMetric.h.


Constructor & Destructor Documentation

vtkReebGraphSimplificationMetric::vtkReebGraphSimplificationMetric (  )  [protected]

vtkReebGraphSimplificationMetric::~vtkReebGraphSimplificationMetric (  )  [protected]


Member Function Documentation

static vtkReebGraphSimplificationMetric* vtkReebGraphSimplificationMetric::New (  )  [static]

Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

Reimplemented from vtkObject.

virtual const char* vtkReebGraphSimplificationMetric::GetClassName (  )  [virtual]

Reimplemented from vtkObject.

static int vtkReebGraphSimplificationMetric::IsTypeOf ( const char *  name  )  [static]

Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkObject.

virtual int vtkReebGraphSimplificationMetric::IsA ( const char *  name  )  [virtual]

Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkObject.

static vtkReebGraphSimplificationMetric* vtkReebGraphSimplificationMetric::SafeDownCast ( vtkObject o  )  [static]

Reimplemented from vtkObject.

void vtkReebGraphSimplificationMetric::PrintSelf ( ostream &  os,
vtkIndent  indent 
) [virtual]

Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkObject.

virtual void vtkReebGraphSimplificationMetric::SetLowerBound ( double   )  [virtual]

Set the lowest possible value for the custom metric space. This value can be set prior to launching the Reeb graph simplification and then used inside the ComputeMetric call to make sure the returned value of ComputeMetric call is indeed between 0 and 1.

virtual double vtkReebGraphSimplificationMetric::GetLowerBound (  )  [virtual]

Set the lowest possible value for the custom metric space. This value can be set prior to launching the Reeb graph simplification and then used inside the ComputeMetric call to make sure the returned value of ComputeMetric call is indeed between 0 and 1.

virtual void vtkReebGraphSimplificationMetric::SetUpperBound ( double   )  [virtual]

Set the highest possible value for the custom metric space. This value can be set prior to launching the Reeb graph simplification and then used inside the ComputeMetric call to make sure the returned value of ComputeMetric call is indeed between 0 and 1.

virtual double vtkReebGraphSimplificationMetric::GetUpperBound (  )  [virtual]

Set the highest possible value for the custom metric space. This value can be set prior to launching the Reeb graph simplification and then used inside the ComputeMetric call to make sure the returned value of ComputeMetric call is indeed between 0 and 1.

virtual double vtkReebGraphSimplificationMetric::ComputeMetric ( vtkDataSet mesh,
vtkDataArray field,
vtkIdType  startCriticalPoint,
vtkAbstractArray vertexList,
vtkIdType  endCriticalPoint 
) [virtual]

Function to implement in your simplification metric algorithm. Given the input mesh and the Ids of the vertices living on the Reeb graph arc to consider for removal, you should return a value between 0 and 1 (the smallest the more likely the arc will be removed, depending on the user-defined simplification threshold).


Member Data Documentation

Definition at line 98 of file vtkReebGraphSimplificationMetric.h.

Definition at line 98 of file vtkReebGraphSimplificationMetric.h.


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

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