Graphics/vtkArrayCalculator.h

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkArrayCalculator.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 __vtkArrayCalculator_h
#define __vtkArrayCalculator_h

#include "vtkDataSetToDataSetFilter.h"

class vtkFunctionParser;

#define VTK_ATTRIBUTE_MODE_DEFAULT 0
#define VTK_ATTRIBUTE_MODE_USE_POINT_DATA 1
#define VTK_ATTRIBUTE_MODE_USE_CELL_DATA 2

class VTK_GRAPHICS_EXPORT vtkArrayCalculator : public vtkDataSetToDataSetFilter 
{
public:
  vtkTypeRevisionMacro(vtkArrayCalculator,vtkDataSetToDataSetFilter);
  void PrintSelf(ostream& os, vtkIndent indent);

  static vtkArrayCalculator *New();


  void SetFunction(const char* function);
  vtkGetStringMacro(Function);
  

  void AddScalarArrayName(const char* arrayName, int component = 0);
  void AddVectorArrayName(const char* arrayName, int component0 = 0,
                          int component1 = 1, int component2 = 2);
  

  void AddScalarVariable(const char* variableName, const char* arrayName,
                         int component = 0);
  void AddVectorVariable(const char* variableName, const char* arrayName,
                         int component0 = 0, int component1 = 1,
                         int component2 = 2);
  

  void SetResultArrayName(const char* name);
  vtkGetStringMacro(ResultArrayName);
  

  vtkSetMacro(AttributeMode,int);
  vtkGetMacro(AttributeMode,int);
  void SetAttributeModeToDefault() 
    {this->SetAttributeMode(VTK_ATTRIBUTE_MODE_DEFAULT);};
  void SetAttributeModeToUsePointData() 
    {this->SetAttributeMode(VTK_ATTRIBUTE_MODE_USE_POINT_DATA);};
  void SetAttributeModeToUseCellData() 
    {this->SetAttributeMode(VTK_ATTRIBUTE_MODE_USE_CELL_DATA);};
  const char *GetAttributeModeAsString();

  void RemoveAllVariables();


  char** GetScalarArrayNames() { return this->ScalarArrayNames; }
  char* GetScalarArrayName(int i);
  char** GetVectorArrayNames() { return this->VectorArrayNames; }
  char* GetVectorArrayName(int i);
  char** GetScalarVariableNames() { return this->ScalarVariableNames; }
  char* GetScalarVariableName(int i);
  char** GetVectorVariableNames() { return this->VectorVariableNames; }
  char* GetVectorVariableName(int i);
  int* GetSelectedScalarComponents() { return this->SelectedScalarComponents; }
  int GetSelectedScalarComponent(int i);
  int** GetSelectedVectorComponents() { return this->SelectedVectorComponents;}
  int* GetSelectedVectorComponents(int i);
  vtkGetMacro(NumberOfScalarArrays, int);
  vtkGetMacro(NumberOfVectorArrays, int);
  
protected:
  vtkArrayCalculator();
  ~vtkArrayCalculator();

  void Execute();
  
  char* Function;
  char* ResultArrayName;
  char** ScalarArrayNames;
  char** VectorArrayNames;
  char** ScalarVariableNames;
  char** VectorVariableNames;
  int NumberOfScalarArrays;
  int NumberOfVectorArrays;
  int AttributeMode;
  int* SelectedScalarComponents;
  int** SelectedVectorComponents;
  vtkFunctionParser* FunctionParser;
private:
  vtkArrayCalculator(const vtkArrayCalculator&);  // Not implemented.
  void operator=(const vtkArrayCalculator&);  // Not implemented.
};

#endif

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