dox/Rendering/vtkAbstractVolumeMapper.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkAbstractVolumeMapper.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.

=========================================================================*/
#ifndef __vtkAbstractVolumeMapper_h
#define __vtkAbstractVolumeMapper_h

#include "vtkAbstractMapper3D.h"

class vtkRenderer;
class vtkVolume;
class vtkWindow;
class vtkDataSet;

class VTK_RENDERING_EXPORT vtkAbstractVolumeMapper : public vtkAbstractMapper3D
{
public:
  vtkTypeMacro(vtkAbstractVolumeMapper,vtkAbstractMapper3D);
  void PrintSelf( ostream& os, vtkIndent indent );


  virtual void SetInput( vtkDataSet * );
  vtkDataSet *GetDataSetInput();
  vtkDataObject *GetDataObjectInput();
  

  virtual double *GetBounds();
  virtual void GetBounds(double bounds[6])
    { this->vtkAbstractMapper3D::GetBounds(bounds); };
  

  vtkSetMacro(ScalarMode,int);
  vtkGetMacro(ScalarMode,int);
  void SetScalarModeToDefault() {
    this->SetScalarMode(VTK_SCALAR_MODE_DEFAULT);};
  void SetScalarModeToUsePointData() {
    this->SetScalarMode(VTK_SCALAR_MODE_USE_POINT_DATA);};
  void SetScalarModeToUseCellData() {
    this->SetScalarMode(VTK_SCALAR_MODE_USE_CELL_DATA);};
  void SetScalarModeToUsePointFieldData() {
    this->SetScalarMode(VTK_SCALAR_MODE_USE_POINT_FIELD_DATA);};
  void SetScalarModeToUseCellFieldData() {
    this->SetScalarMode(VTK_SCALAR_MODE_USE_CELL_FIELD_DATA);};
  

  virtual void SelectScalarArray(int arrayNum); 
  virtual void SelectScalarArray(const char* arrayName); 
  

  virtual char* GetArrayName() { return this->ArrayName; }
  virtual int GetArrayId() { return this->ArrayId; }
  virtual int GetArrayAccessMode() { return this->ArrayAccessMode; }

  const char *GetScalarModeAsString(); 
  
//BTX

  virtual float GetGradientMagnitudeScale() {return 1.0f;};
  virtual float GetGradientMagnitudeBias()  {return 0.0f;};
  virtual float GetGradientMagnitudeScale(int) {return 1.0f;};
  virtual float GetGradientMagnitudeBias(int)  {return 0.0f;};
  

  virtual void Render(vtkRenderer *ren, vtkVolume *vol)=0;

  virtual void ReleaseGraphicsResources(vtkWindow *) {};
  
//ETX

protected:
  vtkAbstractVolumeMapper();
  ~vtkAbstractVolumeMapper();
  
  // see algorithm for more info
  virtual int FillInputPortInformation(int port, vtkInformation* info);

  int         ScalarMode;
  char       *ArrayName;
  int         ArrayId;
  int         ArrayAccessMode;
  
private:
  vtkAbstractVolumeMapper(const vtkAbstractVolumeMapper&);  // Not implemented.
  void operator=(const vtkAbstractVolumeMapper&);  // Not implemented.
};


#endif