vtkCastToConcrete Class Reference

#include <vtkCastToConcrete.h>

Inheritance diagram for vtkCastToConcrete:

[legend]Collaboration diagram for vtkCastToConcrete:

[legend]List of all members.

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Detailed Description

works around type-checking limitations

vtkCastToConcrete is a filter that works around type-checking limitations in the filter classes. Some filters generate abstract types on output, and cannot be connected to the input of filters requiring a concrete input type. For example, vtkElevationFilter generates vtkDataSet for output, and cannot be connected to vtkDecimate, because vtkDecimate requires vtkPolyData as input. This is true even though (in this example) the input to vtkElevationFilter is of type vtkPolyData, and you know the output of vtkElevationFilter is the same type as its input.

vtkCastToConcrete performs run-time checking to insure that output type is of the right type. An error message will result if you try to cast an input type improperly. Otherwise, the filter performs the appropriate cast and returns the data.

Warning:

You must specify the input before you can get the output. Otherwise an error results.

See also:

vtkDataSetAlgorithm vtkPointSetToPointSetFilter

Examples:

vtkCastToConcrete (Examples)

Tests:

vtkCastToConcrete (Tests)

Definition at line 51 of file vtkCastToConcrete.h.

Public Types
typedef vtkDataSetAlgorithm	Superclass
Public Member Functions
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
Static Public Member Functions
static vtkCastToConcrete *	New ()
static int	IsTypeOf (const char *type)
static vtkCastToConcrete *	SafeDownCast (vtkObject *o)
Protected Member Functions
	vtkCastToConcrete ()
	~vtkCastToConcrete ()
virtual int	RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
virtual int	RequestInformation (vtkInformation *, vtkInformationVector **, vtkInformationVector *)

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Member Typedef Documentation

typedef vtkDataSetAlgorithm vtkCastToConcrete::Superclass

Reimplemented from vtkDataSetAlgorithm. Definition at line 56 of file vtkCastToConcrete.h.

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Constructor & Destructor Documentation

vtkCastToConcrete::vtkCastToConcrete (   )  [inline, protected]

Definition at line 60 of file vtkCastToConcrete.h.

vtkCastToConcrete::~vtkCastToConcrete (   )  [inline, protected]

Definition at line 61 of file vtkCastToConcrete.h.

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Member Function Documentation

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

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

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

Reimplemented from vtkDataSetAlgorithm.

static int vtkCastToConcrete::IsTypeOf (  const char *  type  )  [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 vtkTypeRevisionMacro found in vtkSetGet.h. Reimplemented from vtkDataSetAlgorithm.

virtual int vtkCastToConcrete::IsA (  const char *  type  )  [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 vtkTypeRevisionMacro found in vtkSetGet.h. Reimplemented from vtkDataSetAlgorithm.

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

Reimplemented from vtkDataSetAlgorithm.

void vtkCastToConcrete::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 vtkDataSetAlgorithm.

virtual int vtkCastToConcrete::RequestData (  vtkInformation *  , vtkInformationVector **  , vtkInformationVector *  )  [protected, virtual]

This is called by the superclass. This is the method you should override. Reimplemented from vtkDataSetAlgorithm.

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

This is called by the superclass. This is the method you should override. Reimplemented from vtkDataSetAlgorithm.

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

• dox/Filtering/vtkCastToConcrete.h

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