vtkVisItPolyDataNormals.h 3.73 KB
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/*****************************************************************************
*
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* Copyright (c) 2000 - 2017, Lawrence Livermore National Security, LLC
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* Produced at the Lawrence Livermore National Laboratory
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* LLNL-CODE-442911
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* All rights reserved.
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* full copyright notice is contained in the file COPYRIGHT located at the root
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*    specific prior written permission.
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#ifndef __vtkVisItPolyDataNormals_h
#define __vtkVisItPolyDataNormals_h

#include <visit_vtk_exports.h>
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#include <vtkPolyDataAlgorithm.h>
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class vtkPolyData;
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class vtkInformation;
class vtkInformationVector;
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// ****************************************************************************
//  Class:  vtkVisItPolyDataNormals
//
//  Purpose:
//    Calculate cell or point centered normals.
//
//  Programmer:  Jeremy Meredith
//  Creation:    August 12, 2003
//
// ****************************************************************************
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class VISIT_VTK_API vtkVisItPolyDataNormals : public vtkPolyDataAlgorithm
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{
  public:
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    vtkTypeMacro(vtkVisItPolyDataNormals,vtkPolyDataAlgorithm);
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    static vtkVisItPolyDataNormals *New();

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    vtkSetMacro(FeatureAngle,float);
    vtkSetMacro(Splitting, bool);
    vtkBooleanMacro(Splitting, bool);
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    void SetNormalTypeToCell()      { ComputePointNormals = false; }
    void SetNormalTypeToPoint()     { ComputePointNormals = true;  }

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

    // Usual data generation method
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    int RequestData(vtkInformation*, vtkInformationVector**,
                     vtkInformationVector*);
    void ExecutePointWithoutSplitting(vtkPolyData*, vtkPolyData*);
    void ExecutePointWithSplitting(vtkPolyData*, vtkPolyData*);
    void ExecuteCell(vtkPolyData *, vtkPolyData*);
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    float FeatureAngle;
    bool  Splitting;
    bool  ComputePointNormals;

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

#endif