vtkImageStencilRaster Class Reference

This is a helper class for stencil creation. More...

#include <vtkImageStencilData.h>

Public Member Functions
	vtkImageStencilRaster (const int wholeExtent[2])
	Create a raster with the specified whole y extent. More...
	~vtkImageStencilRaster ()
	Destructor. More...
void	PrepareForNewData (const int allocateExtent[2]=0)
	Reset the raster to its original state, but keep the same whole extent. More...
void	FillStencilData (vtkImageStencilData *data, const int extent[6], int xj=0, int yj=1)
	Fill the specified extent of a vtkImageStencilData with the raster, after permuting the raster according to xj and yj. More...
void	SetTolerance (double tol)
	The tolerance for float-to-int conversions. More...
double	GetTolerance ()
void	InsertLine (const double p1[2], const double p2[2])
	Insert a line into the raster, given the two end points. More...
void	InsertLine (const double[2], const double[2], bool, bool)
	Insert a line into the raster, given the two end points. More...

Protected Member Functions
void	PrepareExtent (int ymin, int ymax)
	Ensure that the raster is initialized for the specified range of y values, which must be within the Extent. More...
void	InsertPoint (int y, double x, int i)
	Insert an x point into the raster. More...

Protected Attributes
int	Extent [2]
int	UsedExtent [2]
double **	Raster
double	Tolerance

Detailed Description

This is a helper class for stencil creation.

It is a raster with infinite resolution in the X direction (approximately, since it uses double precision). Lines that represent polygon edges can be drawn into this raster, and then filled given a tolerance.

Definition at line 250 of file vtkImageStencilData.h.

Constructor & Destructor Documentation

vtkImageStencilRaster::vtkImageStencilRaster

(

const int

wholeExtent[2]

)

Create a raster with the specified whole y extent.

vtkImageStencilRaster::~vtkImageStencilRaster

(

)

Destructor.

Member Function Documentation

void vtkImageStencilRaster::PrepareForNewData

(

const int

allocateExtent[2] = 0

)

Reset the raster to its original state, but keep the same whole extent.

Pre-allocate the specified 1D allocateExtent, which must be within the whole extent.

void vtkImageStencilRaster::InsertLine	(	const double	p1[2],
		const double	p2[2]
	)

Insert a line into the raster, given the two end points.

void vtkImageStencilRaster::InsertLine	(	const double	[2],
		const double	[2],
		bool	,
		bool
	)

Insert a line into the raster, given the two end points.

void vtkImageStencilRaster::FillStencilData	(	vtkImageStencilData *	data,
		const int	extent[6],
		int	xj = 0,
		int	yj = 1
	)

Fill the specified extent of a vtkImageStencilData with the raster, after permuting the raster according to xj and yj.

void vtkImageStencilRaster::SetTolerance ( double  tol )

inline

The tolerance for float-to-int conversions.

Definition at line 288 of file vtkImageStencilData.h.

double vtkImageStencilRaster::GetTolerance ( )

inline

Definition at line 289 of file vtkImageStencilData.h.

void vtkImageStencilRaster::PrepareExtent ( int  ymin, int  ymax  )

protected

Ensure that the raster is initialized for the specified range of y values, which must be within the Extent.

void vtkImageStencilRaster::InsertPoint ( int  y, double  x, int  i  )

protected

Insert an x point into the raster.

If the y value is larger than the y extent, the extent will grow automatically. The parameter i indicates which of the two internal rasters is to be used.

Member Data Documentation

int vtkImageStencilRaster::Extent[2]

protected

Definition at line 305 of file vtkImageStencilData.h.

int vtkImageStencilRaster::UsedExtent[2]

protected

Definition at line 306 of file vtkImageStencilData.h.

double** vtkImageStencilRaster::Raster

protected

Definition at line 307 of file vtkImageStencilData.h.

double vtkImageStencilRaster::Tolerance

protected

Definition at line 308 of file vtkImageStencilData.h.

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

• /home/demarle/Builds/VTK/release/Utilities/Doxygen/dox/Imaging/Core/vtkImageStencilData.h