vtkChacoReader Class Reference

#include <vtkChacoReader.h>

Inheritance diagram for vtkChacoReader:

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Collaboration diagram for vtkChacoReader:

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List of all members.


Detailed Description

Read a Chaco file and create a vtkUnstructuredGrid.

vtkChacoReader is an unstructured grid source object that reads Chaco files. The reader DOES NOT respond to piece requests. Chaco is a graph partitioning package developed at Sandia National Laboratories in the early 1990s. (http://www.cs.sandia.gov/~bahendr/chaco.html)

Note that the Chaco "edges" become VTK "cells", and the Chaco "vertices" become VTK "points".

Tests:
vtkChacoReader (Tests)

Definition at line 40 of file vtkChacoReader.h.


Public Types

typedef
vtkUnstructuredGridAlgorithm 
Superclass

Public Member Functions

virtual const char * GetClassName ()
virtual int IsA (const char *type)
void PrintSelf (ostream &os, vtkIndent indent)
virtual void SetBaseName (const char *)
virtual char * GetBaseName ()
virtual void SetGenerateGlobalElementIdArray (int)
virtual int GetGenerateGlobalElementIdArray ()
virtual void GenerateGlobalElementIdArrayOn ()
virtual void GenerateGlobalElementIdArrayOff ()
virtual void SetGenerateGlobalNodeIdArray (int)
virtual int GetGenerateGlobalNodeIdArray ()
virtual void GenerateGlobalNodeIdArrayOn ()
virtual void GenerateGlobalNodeIdArrayOff ()
virtual void SetGenerateVertexWeightArrays (int)
virtual int GetGenerateVertexWeightArrays ()
virtual void GenerateVertexWeightArraysOn ()
virtual void GenerateVertexWeightArraysOff ()
virtual int GetNumberOfVertexWeights ()
const char * GetVertexWeightArrayName (int weight)
virtual void SetGenerateEdgeWeightArrays (int)
virtual int GetGenerateEdgeWeightArrays ()
virtual void GenerateEdgeWeightArraysOn ()
virtual void GenerateEdgeWeightArraysOff ()
virtual int GetNumberOfEdgeWeights ()
const char * GetEdgeWeightArrayName (int weight)
virtual int GetNumberOfCellWeightArrays ()
virtual int GetNumberOfPointWeightArrays ()
virtual int GetDimensionality ()
virtual vtkIdType GetNumberOfEdges ()
virtual vtkIdType GetNumberOfVertices ()

Static Public Member Functions

static vtkChacoReaderNew ()
static int IsTypeOf (const char *type)
static vtkChacoReaderSafeDownCast (vtkObject *o)
static const char * GetGlobalElementIdArrayName ()
static const char * GetGlobalNodeIdArrayName ()

Protected Member Functions

 vtkChacoReader ()
 ~vtkChacoReader ()
int BuildOutputGrid (vtkUnstructuredGrid *gr)
void CloseCurrentFile ()
int OpenCurrentFile ()
int InputGeom (vtkIdType nvtxs, int igeom, double *x, double *y, double *z)
int InputGraph1 ()
int InputGraph2 (vtkIdType **start, vtkIdType **adjacency, double **vweights, double **eweights)
int GetCoordsMetadata ()
void GetGraphMetadata ()
int ReadFile (vtkUnstructuredGrid *output)
void AddElementIds (vtkUnstructuredGrid *output)
void AddNodeIds (vtkUnstructuredGrid *output)
void MakeWeightArrayNames (int nv, int ne)
virtual void SetCurrentBaseName (const char *)
int RequestInformation (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
int RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *)

Protected Attributes

char * BaseName
int GenerateGlobalElementIdArray
int GenerateGlobalNodeIdArray
int GenerateVertexWeightArrays
int GenerateEdgeWeightArrays
FILE * CurrentGeometryFP
FILE * CurrentGraphFP
char * CurrentBaseName
char ** VarrayName
char ** EarrayName
int Dimensionality
vtkIdType NumberOfVertices
vtkIdType NumberOfEdges
int NumberOfVertexWeights
int NumberOfEdgeWeights
int GraphFileHasVertexNumbers
int NumberOfPointWeightArrays
int NumberOfCellWeightArrays
vtkUnstructuredGridDataCache
int RemakeDataCacheFlag

Member Typedef Documentation

Reimplemented from vtkUnstructuredGridAlgorithm.

Reimplemented in vtkPChacoReader.

Definition at line 44 of file vtkChacoReader.h.


Constructor & Destructor Documentation

vtkChacoReader::vtkChacoReader (  )  [protected]

vtkChacoReader::~vtkChacoReader (  )  [protected]


Member Function Documentation

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

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

Reimplemented from vtkUnstructuredGridAlgorithm.

Reimplemented in vtkPChacoReader.

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

Reimplemented from vtkUnstructuredGridAlgorithm.

Reimplemented in vtkPChacoReader.

static int vtkChacoReader::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 vtkUnstructuredGridAlgorithm.

Reimplemented in vtkPChacoReader.

virtual int vtkChacoReader::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 vtkUnstructuredGridAlgorithm.

Reimplemented in vtkPChacoReader.

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

Reimplemented from vtkUnstructuredGridAlgorithm.

Reimplemented in vtkPChacoReader.

void vtkChacoReader::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 vtkUnstructuredGridAlgorithm.

Reimplemented in vtkPChacoReader.

virtual void vtkChacoReader::SetBaseName ( const char *   )  [virtual]

Specify the base name of the Chaco files. The reader will try to open BaseName.coords and BaseName.graph.

virtual char* vtkChacoReader::GetBaseName (  )  [virtual]

virtual void vtkChacoReader::SetGenerateGlobalElementIdArray ( int   )  [virtual]

Indicate whether this reader should create a cell array containing global IDs for the cells in the output vtkUnstructuredGrid. These cells represent the edges that were in the Chaco file. Each edge is a vtkLine. Default is ON.

virtual int vtkChacoReader::GetGenerateGlobalElementIdArray (  )  [virtual]

virtual void vtkChacoReader::GenerateGlobalElementIdArrayOn (  )  [virtual]

virtual void vtkChacoReader::GenerateGlobalElementIdArrayOff (  )  [virtual]

static const char* vtkChacoReader::GetGlobalElementIdArrayName (  )  [inline, static]

Definition at line 62 of file vtkChacoReader.h.

virtual void vtkChacoReader::SetGenerateGlobalNodeIdArray ( int   )  [virtual]

Indicate whether this reader should create a point array of global IDs for the points in the output vtkUnstructuredGrid. These points are the vertices that were in the Chaco file. Global point IDs start at "1" for the first vertex in BaseName.coords and go up from there. Default is ON.

virtual int vtkChacoReader::GetGenerateGlobalNodeIdArray (  )  [virtual]

virtual void vtkChacoReader::GenerateGlobalNodeIdArrayOn (  )  [virtual]

virtual void vtkChacoReader::GenerateGlobalNodeIdArrayOff (  )  [virtual]

static const char* vtkChacoReader::GetGlobalNodeIdArrayName (  )  [inline, static]

Definition at line 74 of file vtkChacoReader.h.

virtual void vtkChacoReader::SetGenerateVertexWeightArrays ( int   )  [virtual]

Indicate whether this reader should create a point array for each vertex weight in the Chaco file. Default is OFF.

virtual int vtkChacoReader::GetGenerateVertexWeightArrays (  )  [virtual]

virtual void vtkChacoReader::GenerateVertexWeightArraysOn (  )  [virtual]

virtual void vtkChacoReader::GenerateVertexWeightArraysOff (  )  [virtual]

virtual int vtkChacoReader::GetNumberOfVertexWeights (  )  [virtual]

Returns the number of weights per vertex in the Chaco file, whether or not GenerateVertexWeightArrays is ON.

const char* vtkChacoReader::GetVertexWeightArrayName ( int  weight  ) 

This method returns the name of the selected Vertex weight point array. If you did not turn on GenerateVertexWeightArrays, or if the weight you requested is invalid, it returns NULL. Weights begin at one and go up to NumberOfVertexWeights. This is a pointer to our copy of the name, so don't "delete" it.

virtual void vtkChacoReader::SetGenerateEdgeWeightArrays ( int   )  [virtual]

Each edge in the Chaco file connects two vertices. The file may specify one or more weights for each edge. (The weight for an edge from vertex A to vertex B equals the weight from B to A.) Indicate with the following parameter whether this reader should create a cell array for each weight for every edge. Default is OFF.

virtual int vtkChacoReader::GetGenerateEdgeWeightArrays (  )  [virtual]

virtual void vtkChacoReader::GenerateEdgeWeightArraysOn (  )  [virtual]

virtual void vtkChacoReader::GenerateEdgeWeightArraysOff (  )  [virtual]

virtual int vtkChacoReader::GetNumberOfEdgeWeights (  )  [virtual]

Returns the number of weights per edge in the Chaco file, whether or not GenerateEdgeWeightArrays is ON.

const char* vtkChacoReader::GetEdgeWeightArrayName ( int  weight  ) 

This method returns the name of the selected Edge weight cell array. If you did not turn on GenerateEdgeWeightArrays, or if the weight you requested is invalid, it returns NULL. Weights begin at one and go up to NumberOfEdgeWeights. This is a pointer to our copy of the name, so don't "delete" it.

virtual int vtkChacoReader::GetDimensionality (  )  [virtual]

Access to meta data generated by RequestInformation.

virtual vtkIdType vtkChacoReader::GetNumberOfEdges (  )  [virtual]

Access to meta data generated by RequestInformation.

virtual vtkIdType vtkChacoReader::GetNumberOfVertices (  )  [virtual]

Access to meta data generated by RequestInformation.

virtual int vtkChacoReader::GetNumberOfCellWeightArrays (  )  [virtual]

After this filter executes, this method returns the number of cell arrays that were created to hold the edge weights. It is equal to NumberOfEdgeWeights if GenerateEdgeWeightArrays was ON.

virtual int vtkChacoReader::GetNumberOfPointWeightArrays (  )  [virtual]

After this filter executes, this method returns the number of point arrays that were created to hold the vertex weights. It is equal to NumberOfVertexWeights if GenerateVertexWeightArrays was ON.

int vtkChacoReader::BuildOutputGrid ( vtkUnstructuredGrid gr  )  [protected]

void vtkChacoReader::CloseCurrentFile (  )  [protected]

int vtkChacoReader::OpenCurrentFile (  )  [protected]

int vtkChacoReader::InputGeom ( vtkIdType  nvtxs,
int  igeom,
double *  x,
double *  y,
double *  z 
) [protected]

int vtkChacoReader::InputGraph1 (  )  [protected]

int vtkChacoReader::InputGraph2 ( vtkIdType **  start,
vtkIdType **  adjacency,
double **  vweights,
double **  eweights 
) [protected]

int vtkChacoReader::GetCoordsMetadata (  )  [protected]

void vtkChacoReader::GetGraphMetadata (  )  [protected]

int vtkChacoReader::ReadFile ( vtkUnstructuredGrid output  )  [protected]

void vtkChacoReader::AddElementIds ( vtkUnstructuredGrid output  )  [protected]

void vtkChacoReader::AddNodeIds ( vtkUnstructuredGrid output  )  [protected]

void vtkChacoReader::MakeWeightArrayNames ( int  nv,
int  ne 
) [protected]

virtual void vtkChacoReader::SetCurrentBaseName ( const char *   )  [protected, virtual]

int vtkChacoReader::RequestInformation ( vtkInformation ,
vtkInformationVector **  ,
vtkInformationVector  
) [protected, virtual]

Reimplemented from vtkUnstructuredGridAlgorithm.

Reimplemented in vtkPChacoReader.

int vtkChacoReader::RequestData ( vtkInformation request,
vtkInformationVector **  inputVector,
vtkInformationVector outputVector 
) [protected, virtual]

This is called by the superclass. This is the method you should override.

Reimplemented from vtkUnstructuredGridAlgorithm.

Reimplemented in vtkPChacoReader.


Member Data Documentation

char* vtkChacoReader::BaseName [protected]

Definition at line 165 of file vtkChacoReader.h.

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Definition at line 172 of file vtkChacoReader.h.

FILE* vtkChacoReader::CurrentGraphFP [protected]

Definition at line 173 of file vtkChacoReader.h.

Definition at line 174 of file vtkChacoReader.h.

char** vtkChacoReader::VarrayName [protected]

Definition at line 175 of file vtkChacoReader.h.

char** vtkChacoReader::EarrayName [protected]

Definition at line 178 of file vtkChacoReader.h.

Definition at line 185 of file vtkChacoReader.h.

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Definition at line 187 of file vtkChacoReader.h.

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Definition at line 203 of file vtkChacoReader.h.


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

Generated on Mon Sep 27 18:19:37 2010 for VTK by  doxygen 1.5.6