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vtkImageCityBlockDistance Class Reference

#include <vtkImageCityBlockDistance.h>

Inheritance diagram for vtkImageCityBlockDistance:

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Collaboration diagram for vtkImageCityBlockDistance:

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List of all members.

Detailed Description

1,2 or 3D distance map.

vtkImageCityBlockDistance creates a distance map using the city block (Manhatten) distance measure. The input is a mask. Zero values are considered boundaries. The output pixel is the minimum of the input pixel and the distance to a boundary (or neighbor value + 1 unit). distance values are calculated in pixels. The filter works by taking 6 passes (for 3d distance map): 2 along each axis (forward and backward). Each pass keeps a running minimum distance. For some reason, I preserve the sign if the distance. If the input mask is initially negative, the output distances will be negative. Distances maps can have inside (negative regions) and outsides (positive regions).

Tests:
vtkImageCityBlockDistance (Tests)

Definition at line 40 of file vtkImageCityBlockDistance.h.

Public Types

typedef vtkImageDecomposeFilter Superclass

Public Member Functions

virtual const char * GetClassName ()
virtual int IsA (const char *type)

Static Public Member Functions

static vtkImageCityBlockDistanceNew ()
static int IsTypeOf (const char *type)
static vtkImageCityBlockDistanceSafeDownCast (vtkObject *o)

Protected Member Functions

 vtkImageCityBlockDistance ()
 ~vtkImageCityBlockDistance ()
virtual int IterativeRequestUpdateExtent (vtkInformation *in, vtkInformation *out)
virtual int IterativeRequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
void AllocateOutputScalars (vtkImageData *outData, int *updateExtent, int *wholeExtent)


Member Typedef Documentation

typedef vtkImageDecomposeFilter vtkImageCityBlockDistance::Superclass
 

Construct an instance of vtkImageDecomposeFilter filter with default dimensionality 3.

Reimplemented from vtkImageDecomposeFilter.

Definition at line 44 of file vtkImageCityBlockDistance.h.


Constructor & Destructor Documentation

vtkImageCityBlockDistance::vtkImageCityBlockDistance  )  [protected]
 

vtkImageCityBlockDistance::~vtkImageCityBlockDistance  )  [inline, protected]
 

Definition at line 48 of file vtkImageCityBlockDistance.h.


Member Function Documentation

static vtkImageCityBlockDistance* vtkImageCityBlockDistance::New  )  [static]
 

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

Reimplemented from vtkAlgorithm.

virtual const char* vtkImageCityBlockDistance::GetClassName  )  [virtual]
 

Construct an instance of vtkImageDecomposeFilter filter with default dimensionality 3.

Reimplemented from vtkImageDecomposeFilter.

static int vtkImageCityBlockDistance::IsTypeOf const char *  type  )  [static]
 

Construct an instance of vtkImageDecomposeFilter filter with default dimensionality 3.

Reimplemented from vtkImageDecomposeFilter.

virtual int vtkImageCityBlockDistance::IsA const char *  type  )  [virtual]
 

Construct an instance of vtkImageDecomposeFilter filter with default dimensionality 3.

Reimplemented from vtkImageDecomposeFilter.

static vtkImageCityBlockDistance* vtkImageCityBlockDistance::SafeDownCast vtkObject o  )  [static]
 

Construct an instance of vtkImageDecomposeFilter filter with default dimensionality 3.

Reimplemented from vtkImageDecomposeFilter.

virtual int vtkImageCityBlockDistance::IterativeRequestUpdateExtent vtkInformation in,
vtkInformation out
[protected, virtual]
 

Reimplemented from vtkImageIterateFilter.

virtual int vtkImageCityBlockDistance::IterativeRequestData vtkInformation ,
vtkInformationVector **  ,
vtkInformationVector
[protected, virtual]
 

Reimplemented from vtkImageIterateFilter.

void vtkImageCityBlockDistance::AllocateOutputScalars vtkImageData outData,
int *  updateExtent,
int *  wholeExtent
[protected]
 


The documentation for this class was generated from the following file:
Generated on Mon Jan 21 23:48:49 2008 for VTK by  doxygen 1.4.3-20050530