vtkImageStencilRaster Class Reference

#include <vtkImageStencilData.h>

List of all members.

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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 192 of file vtkImageStencilData.h.

Public Member Functions
	vtkImageStencilRaster (const int wholeExtent[2])
	~vtkImageStencilRaster ()
void	PrepareForNewData (const int allocateExtent[2]=0)
void	InsertLine (const double p1[2], const double p2[2], bool inflect1, bool inflect2)
void	FillStencilData (vtkImageStencilData *data, const int extent[6], int xj=0, int yj=1)
void	SetTolerance (double tol)
double	GetTolerance ()
Protected Member Functions
void	PrepareExtent (int ymin, int ymax)
void	InsertPoint (int y, double x)
Protected Attributes
int	Extent [2]
int	UsedExtent [2]
double **	Raster
double	Tolerance

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Constructor & Destructor Documentation

vtkImageStencilRaster::vtkImageStencilRaster

(

const int

wholeExtent[2]

)

vtkImageStencilRaster::~vtkImageStencilRaster

(

)

Destructor.

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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],
		bool	inflect1,
		bool	inflect2
	)

Insert a line into the raster, given the two end points. The "inflect1" and "inflect2" should be set if you want to add a small vertical tolerance to either endpoints.

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 225 of file vtkImageStencilData.h.

double vtkImageStencilRaster::GetTolerance

(

)

[inline]

The tolerance for float-to-int conversions.

Definition at line 226 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
	)			[protected]

Insert an x point into the raster. If the y value is larger than the y extent, the extent will grow automatically.

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Member Data Documentation

int vtkImageStencilRaster::Extent[2] [protected]

Definition at line 238 of file vtkImageStencilData.h.

int vtkImageStencilRaster::UsedExtent[2] [protected]

Definition at line 239 of file vtkImageStencilData.h.

double** vtkImageStencilRaster::Raster [protected]

Definition at line 240 of file vtkImageStencilData.h.

double vtkImageStencilRaster::Tolerance [protected]

Definition at line 241 of file vtkImageStencilData.h.

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

• dox/Imaging/vtkImageStencilData.h