vtkGenericClip.h

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkGenericClip.h,v $

  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 __vtkGenericClip_h
#define __vtkGenericClip_h

#include "vtkUnstructuredGridAlgorithm.h"

class vtkImplicitFunction;

class vtkPointLocator;
class vtkPointData;
class vtkCellData;

class VTK_GENERIC_FILTERING_EXPORT vtkGenericClip : public vtkUnstructuredGridAlgorithm
{
public:
  vtkTypeRevisionMacro(vtkGenericClip,vtkUnstructuredGridAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);

  static vtkGenericClip *New();


  vtkSetMacro(Value,double);
  vtkGetMacro(Value,double);
  

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


  virtual void SetClipFunction(vtkImplicitFunction*);
  vtkGetObjectMacro(ClipFunction,vtkImplicitFunction);


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


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


  vtkSetClampMacro(MergeTolerance,double,0.0001,0.25);
  vtkGetMacro(MergeTolerance,double);
  

  vtkUnstructuredGrid *GetClippedOutput();
  virtual int GetNumberOfOutputs();


  void SetLocator(vtkPointLocator *locator);
  vtkGetObjectMacro(Locator,vtkPointLocator);

  void CreateDefaultLocator();

  unsigned long GetMTime();


  vtkGetStringMacro(InputScalarsSelection);
  void SelectInputScalars(const char *fieldName) 
    {this->SetInputScalarsSelection(fieldName);}

protected:
  vtkGenericClip(vtkImplicitFunction *cf=NULL);
  ~vtkGenericClip();

  int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
  int FillInputPortInformation(int, vtkInformation*);
  
  vtkImplicitFunction *ClipFunction;
  
  vtkPointLocator *Locator;
  int InsideOut;
  double Value;
  int GenerateClipScalars;

  int GenerateClippedOutput;
  double MergeTolerance;

  char *InputScalarsSelection;
  vtkSetStringMacro(InputScalarsSelection);

  // Used internal by vtkGenericAdaptorCell::Clip()
  vtkPointData *internalPD;
  vtkPointData *secondaryPD;
  vtkCellData *secondaryCD;
  
private:
  vtkGenericClip(const vtkGenericClip&);  // Not implemented.
  void operator=(const vtkGenericClip&);  // Not implemented.
};

#endif

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