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vtkVolumeRayCastMIPFunction.h
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vtkVolumeRayCastMIPFunction.h
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkVolumeRayCastMIPFunction.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.
=========================================================================*/
// .NAME vtkVolumeRayCastMIPFunction - A maximum intensity projection ray caster for volumes
//
// .SECTION Description
// vtkVolumeRayCastMIPFunction is a volume ray cast function that
// computes the maximum value encountered along the ray. This is
// either the maximum scalar value, or the maximum opacity, as
// defined by the MaximizeMethod. The color and opacity returned
// by this function is based on the color, scalar opacity, and
// gradient opacity transfer functions defined in the vtkVolumeProperty
// of the vtkVolume.
//
// .SECTION See Also
// vtkVolumeRayCastFunction vtkVolumeRayCastMapper vtkVolumeProperty
// vtkVolumeRayCastCompositeFunction vtkVolumeRayCastIsosurfaceFunction
// vtkVolume vtkVolumeProperty
#ifndef __vtkVolumeRayCastMIPFunction_h
#define __vtkVolumeRayCastMIPFunction_h
#include "vtkVolumeRayCastFunction.h"
#define VTK_MAXIMIZE_SCALAR_VALUE 0
#define VTK_MAXIMIZE_OPACITY 1
class VTK_VOLUMERENDERING_EXPORT vtkVolumeRayCastMIPFunction : public vtkVolumeRayCastFunction
{
public:
static vtkVolumeRayCastMIPFunction *New();
vtkTypeMacro(vtkVolumeRayCastMIPFunction,vtkVolumeRayCastFunction);
void PrintSelf( ostream& os, vtkIndent indent );
// Description:
// Get the scalar value below which all scalar values have zero opacity.
float GetZeroOpacityThreshold( vtkVolume *vol );
// Description:
// Set the MaximizeMethod to either ScalarValue or Opacity.
vtkSetClampMacro( MaximizeMethod, int,
VTK_MAXIMIZE_SCALAR_VALUE, VTK_MAXIMIZE_OPACITY );
vtkGetMacro(MaximizeMethod,int);
void SetMaximizeMethodToScalarValue()
{this->SetMaximizeMethod(VTK_MAXIMIZE_SCALAR_VALUE);}
void SetMaximizeMethodToOpacity()
{this->SetMaximizeMethod(VTK_MAXIMIZE_OPACITY);}
const char *GetMaximizeMethodAsString(void);
//BTX
void CastRay( vtkVolumeRayCastDynamicInfo *dynamicInfo,
vtkVolumeRayCastStaticInfo *staticInfo );
//ETX
protected:
vtkVolumeRayCastMIPFunction();
~vtkVolumeRayCastMIPFunction();
int MaximizeMethod;
//BTX
void SpecificFunctionInitialize( vtkRenderer *ren,
vtkVolume *vol,
vtkVolumeRayCastStaticInfo *staticInfo,
vtkVolumeRayCastMapper *mapper );
//ETX
private:
vtkVolumeRayCastMIPFunction(const vtkVolumeRayCastMIPFunction&); // Not implemented.
void operator=(const vtkVolumeRayCastMIPFunction&); // Not implemented.
};
#endif