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vtkImageMapper.h
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vtkImageMapper.h
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkImageMapper.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/**
* @class vtkImageMapper
* @brief 2D image display
*
* vtkImageMapper provides 2D image display support for vtk.
* It is a Mapper2D subclass that can be associated with an Actor2D
* and placed within a RenderWindow or ImageWindow.
* The vtkImageMapper is a 2D mapper, which means that it displays images
* in display coordinates. In display coordinates, one image pixel is
* always one screen pixel.
*
* @sa
* vtkMapper2D vtkActor2D
*/
#ifndef vtkImageMapper_h
#define vtkImageMapper_h
#include "vtkRenderingCoreModule.h" // For export macro
#include "vtkMapper2D.h"
class vtkWindow;
class vtkViewport;
class vtkActor2D;
class vtkImageData;
class VTKRENDERINGCORE_EXPORT vtkImageMapper : public vtkMapper2D
{
public:
vtkTypeMacro(vtkImageMapper, vtkMapper2D);
static vtkImageMapper *New();
void PrintSelf(ostream& os, vtkIndent indent);
/**
* Override Modifiedtime as we have added a lookuptable
*/
vtkMTimeType GetMTime();
//@{
/**
* Set/Get the window value for window/level
*/
vtkSetMacro(ColorWindow, double);
vtkGetMacro(ColorWindow, double);
//@}
//@{
/**
* Set/Get the level value for window/level
*/
vtkSetMacro(ColorLevel, double);
vtkGetMacro(ColorLevel, double);
//@}
//@{
/**
* Set/Get the current slice number. The axis Z in ZSlice does not
* necessarily have any relation to the z axis of the data on disk.
* It is simply the axis orthogonal to the x,y, display plane.
* GetWholeZMax and Min are convenience methods for obtaining
* the number of slices that can be displayed. Again the number
* of slices is in reference to the display z axis, which is not
* necessarily the z axis on disk. (due to reformatting etc)
*/
vtkSetMacro(ZSlice, int);
vtkGetMacro(ZSlice, int);
int GetWholeZMin();
int GetWholeZMax();
//@}
/**
* Draw the image to the screen.
*/
void RenderStart(vtkViewport* viewport, vtkActor2D* actor);
/**
* Function called by Render to actually draw the image to to the screen
*/
virtual void RenderData(vtkViewport*, vtkImageData*, vtkActor2D* )=0;
//@{
/**
* Methods used internally for performing the Window/Level mapping.
*/
double GetColorShift();
double GetColorScale();
//@}
// Public for templated functions. * * Should remove this * *
int DisplayExtent[6];
//@{
/**
* Set the Input of a filter.
*/
virtual void SetInputData(vtkImageData *input);
vtkImageData *GetInput();
//@}
//@{
/**
* If RenderToRectangle is set (by default not), then the imagemapper
* will render the image into the rectangle supplied by the Actor2D's
* PositionCoordinate and Position2Coordinate
*/
vtkSetMacro(RenderToRectangle, int);
vtkGetMacro(RenderToRectangle, int);
vtkBooleanMacro(RenderToRectangle, int);
//@}
//@{
/**
* Usually, the entire image is displayed, if UseCustomExtents
* is set (by default not), then the region supplied in the
* CustomDisplayExtents is used in preference.
* Note that the Custom extents are x,y only and the zslice is still
* applied
*/
vtkSetMacro(UseCustomExtents, int);
vtkGetMacro(UseCustomExtents, int);
vtkBooleanMacro(UseCustomExtents, int);
//@}
//@{
/**
* The image extents which should be displayed with UseCustomExtents
* Note that the Custom extents are x,y only and the zslice is still
* applied
*/
vtkSetVectorMacro(CustomDisplayExtents, int, 4);
vtkGetVectorMacro(CustomDisplayExtents, int, 4);
//@}
protected:
vtkImageMapper();
~vtkImageMapper();
double ColorWindow;
double ColorLevel;
int PositionAdjustment[2];
int ZSlice;
int UseCustomExtents;
int CustomDisplayExtents[4];
int RenderToRectangle;
virtual int FillInputPortInformation(int, vtkInformation*);
private:
vtkImageMapper(const vtkImageMapper&) VTK_DELETE_FUNCTION;
void operator=(const vtkImageMapper&) VTK_DELETE_FUNCTION;
};
#endif