---

Imaging/vtkGaussianSplatter.h

Go to the documentation of this file.

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkGaussianSplatter.h,v $
  Language:  C++

  Copyright (c) 1993-2002 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 __vtkGaussianSplatter_h
#define __vtkGaussianSplatter_h

#include "vtkDataSetToImageFilter.h"

#define VTK_ACCUMULATION_MODE_MIN 0
#define VTK_ACCUMULATION_MODE_MAX 1
#define VTK_ACCUMULATION_MODE_SUM 2

class vtkFloatArray;

class VTK_IMAGING_EXPORT vtkGaussianSplatter : public vtkDataSetToImageFilter 
{
public:
  vtkTypeRevisionMacro(vtkGaussianSplatter,vtkDataSetToImageFilter);
  void PrintSelf(ostream& os, vtkIndent indent);

  static vtkGaussianSplatter *New();


  void SetSampleDimensions(int i, int j, int k);
  void SetSampleDimensions(int dim[3]);
  vtkGetVectorMacro(SampleDimensions,int,3);


  vtkSetVector6Macro(ModelBounds,float);
  vtkGetVectorMacro(ModelBounds,float,6);


  vtkSetClampMacro(Radius,float,0.0,1.0);
  vtkGetMacro(Radius,float);


  vtkSetClampMacro(ScaleFactor,float,0.0,VTK_LARGE_FLOAT);
  vtkGetMacro(ScaleFactor,float);


  vtkSetMacro(ExponentFactor,float);
  vtkGetMacro(ExponentFactor,float);


  vtkSetMacro(NormalWarping,int);
  vtkGetMacro(NormalWarping,int);
  vtkBooleanMacro(NormalWarping,int);


  vtkSetClampMacro(Eccentricity,float,0.001,VTK_LARGE_FLOAT);
  vtkGetMacro(Eccentricity,float);


  vtkSetMacro(ScalarWarping,int);
  vtkGetMacro(ScalarWarping,int);
  vtkBooleanMacro(ScalarWarping,int);


  vtkSetMacro(Capping,int);
  vtkGetMacro(Capping,int);
  vtkBooleanMacro(Capping,int);
  

  vtkSetMacro(CapValue,float);
  vtkGetMacro(CapValue,float);


  vtkSetClampMacro(AccumulationMode,int,
                   VTK_ACCUMULATION_MODE_MIN,VTK_ACCUMULATION_MODE_SUM);
  vtkGetMacro(AccumulationMode,int);
  void SetAccumulationModeToMin()
    {this->SetAccumulationMode(VTK_ACCUMULATION_MODE_MIN);}
  void SetAccumulationModeToMax()
    {this->SetAccumulationMode(VTK_ACCUMULATION_MODE_MAX);}
  void SetAccumulationModeToSum()
    {this->SetAccumulationMode(VTK_ACCUMULATION_MODE_SUM);}
  const char *GetAccumulationModeAsString();


  vtkSetMacro(NullValue,float);
  vtkGetMacro(NullValue,float);

  void ComputeModelBounds();

protected:
  vtkGaussianSplatter();
  ~vtkGaussianSplatter() {};

  virtual void ExecuteInformation();
  virtual void ExecuteData(vtkDataObject *);
  void Cap(vtkFloatArray *s);

  int SampleDimensions[3]; // dimensions of volume to splat into
  float Radius; // maximum distance splat propagates (as fraction 0->1)
  float ExponentFactor; // scale exponent of gaussian function
  float ModelBounds[6]; // bounding box of splatting dimensions
  int NormalWarping; // on/off warping of splat via normal
  float Eccentricity;// elliptic distortion due to normals
  int ScalarWarping; // on/off warping of splat via scalar
  float ScaleFactor; // splat size influenced by scale factor
  int Capping; // Cap side of volume to close surfaces
  float CapValue; // value to use for capping
  int AccumulationMode; // how to combine scalar values

  float Gaussian(float x[3]);  
  float EccentricGaussian(float x[3]);  
  float ScalarSampling(float s) 
    {return this->ScaleFactor * s;}
  float PositionSampling(float) 
    {return this->ScaleFactor;}
  void SetScalar(int idx, float dist2, vtkFloatArray *newScalars);

//BTX
private:
  float Radius2;
  float (vtkGaussianSplatter::*Sample)(float x[3]);
  float (vtkGaussianSplatter::*SampleFactor)(float s);
  char *Visited;
  float Eccentricity2;
  float *P;
  float *N;
  float S;
  float Origin[3];
  float Spacing[3];
  float SplatDistance[3];
  float NullValue;
//ETX

private:
  vtkGaussianSplatter(const vtkGaussianSplatter&);  // Not implemented.
  void operator=(const vtkGaussianSplatter&);  // Not implemented.
};

#endif

Generated on Fri Mar 7 15:40:17 2003 for VTK by Doxygen 1.2.18