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/*=========================================================================
Program: Visualization Toolkit
Module: vtkVolumeRayCastIsosurfaceFunction.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 vtkVolumeRayCastIsosurfaceFunction - An isosurface ray caster for volumes
//
// .SECTION Description
// vtkVolumeRayCastIsosurfaceFunction is a volume ray cast function that
// intersects a ray with an analytic isosurface in a scalar field. The color
// and shading parameters are defined in the vtkVolumeProperty of the
// vtkVolume, as well as the interpolation type to use when locating the
// surface (either a nearest neighbor approach or a tri-linear interpolation
// approach)
//
// .SECTION See Also
// vtkVolumeRayCastFunction vtkVolumeRayCastMapper vtkVolumeProperty
// vtkVolumeRayCastCompositeFunction vtkVolumeRayCastMIPFunction
// vtkVolume vtkVolumeProperty
#ifndef vtkVolumeRayCastIsosurfaceFunction_h
#define vtkVolumeRayCastIsosurfaceFunction_h
#include "vtkRenderingVolumeModule.h" // For export macro
#include "vtkVolumeRayCastFunction.h"
class VTKRENDERINGVOLUME_EXPORT vtkVolumeRayCastIsosurfaceFunction : public vtkVolumeRayCastFunction
{
public:
vtkTypeMacro(vtkVolumeRayCastIsosurfaceFunction,vtkVolumeRayCastFunction);
void PrintSelf( ostream& os, vtkIndent indent );
// Description:
// Construct a new vtkVolumeRayCastIsosurfaceFunction
static vtkVolumeRayCastIsosurfaceFunction *New();
// Description:
// Get the scalar value below which all scalar values have 0 opacity
float GetZeroOpacityThreshold( vtkVolume *vol );
// Description:
// Set/Get the value of IsoValue.
vtkSetMacro( IsoValue, double );
vtkGetMacro( IsoValue, double );
// Description:
// This is the isovalue at which to view a surface
double IsoValue;
// Description:
// These variables are filled in by SpecificFunctionInitialize
float Color[3];
//BTX
void CastRay( vtkVolumeRayCastDynamicInfo *dynamicInfo,
vtkVolumeRayCastStaticInfo *staticInfo);
//ETX
protected:
vtkVolumeRayCastIsosurfaceFunction();
~vtkVolumeRayCastIsosurfaceFunction();
//BTX
void SpecificFunctionInitialize( vtkRenderer *ren,
vtkVolume *vol,
vtkVolumeRayCastStaticInfo *staticInfo,
vtkVolumeRayCastMapper *mapper );
//ETX
private:
vtkVolumeRayCastIsosurfaceFunction(const vtkVolumeRayCastIsosurfaceFunction&); // Not implemented.
void operator=(const vtkVolumeRayCastIsosurfaceFunction&); // Not implemented.
};
#endif
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