vtkCellValidator.h

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

  Program:   Visualization Toolkit
  Module:    vtkCellValidator.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 vtkCellValidator_h
#define vtkCellValidator_h

#include "vtkFiltersGeneralModule.h" // For export macro
#include "vtkDataSetAlgorithm.h"

class vtkCell;
class vtkGenericCell;
class vtkEmptyCell;
class vtkVertex;
class vtkPolyVertex;
class vtkLine;
class vtkPolyLine;
class vtkTriangle;
class vtkTriangleStrip;
class vtkPolygon;
class vtkPixel;
class vtkQuad;
class vtkTetra;
class vtkVoxel;
class vtkHexahedron;
class vtkWedge;
class vtkPyramid;
class vtkPentagonalPrism;
class vtkHexagonalPrism;
class vtkQuadraticEdge;
class vtkQuadraticTriangle;
class vtkQuadraticQuad;
class vtkQuadraticPolygon;
class vtkQuadraticTetra;
class vtkQuadraticHexahedron;
class vtkQuadraticWedge;
class vtkQuadraticPyramid;
class vtkBiQuadraticQuad;
class vtkTriQuadraticHexahedron;
class vtkQuadraticLinearQuad;
class vtkQuadraticLinearWedge;
class vtkBiQuadraticQuadraticWedge;
class vtkBiQuadraticQuadraticHexahedron;
class vtkBiQuadraticTriangle;
class vtkCubicLine;
class vtkConvexPointSet;
class vtkPolyhedron;
class vtkLagrangeCurve;
class vtkLagrangeTriangle;
class vtkLagrangeQuadrilateral;
class vtkLagrangeTetra;
class vtkLagrangeHexahedron;
class vtkLagrangeWedge;

class VTKFILTERSGENERAL_EXPORT vtkCellValidator : public vtkDataSetAlgorithm
{
public:
  vtkTypeMacro(vtkCellValidator,vtkDataSetAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  // Description:
  // Construct to compute the validity of cells.
  static vtkCellValidator *New();

  enum State : short
    {
      Valid = 0x0,
      WrongNumberOfPoints = 0x01,
      IntersectingEdges = 0x02,
      IntersectingFaces = 0x04,
      NoncontiguousEdges = 0x08,
      Nonconvex = 0x10,
      FacesAreOrientedIncorrectly = 0x20,
    };

  friend inline State operator &(State a, State b)
  {
    return static_cast<State>(static_cast<short>(a) & static_cast<short>(b));
  }
  friend inline State operator |(State a, State b)
  {
    return static_cast<State>(static_cast<short>(a) | static_cast<short>(b));
  }
  friend inline State& operator&=(State& a, State b)
  {
    return a = a & b;
  }

  friend inline State& operator|=(State& a, State b)
  {
    return a = a | b;
  }

  static void PrintState(State state, ostream& os, vtkIndent indent);

  static State Check(vtkGenericCell*, double tolerance);
  static State Check(vtkCell*, double tolerance);

  static State Check(vtkEmptyCell*, double tolerance);
  static State Check(vtkVertex*, double tolerance);
  static State Check(vtkPolyVertex*, double tolerance);
  static State Check(vtkLine*, double tolerance);
  static State Check(vtkPolyLine*, double tolerance);
  static State Check(vtkTriangle*, double tolerance);
  static State Check(vtkTriangleStrip*, double tolerance);
  static State Check(vtkPolygon*, double tolerance);
  static State Check(vtkPixel*, double tolerance);
  static State Check(vtkQuad*, double tolerance);
  static State Check(vtkTetra*, double tolerance);
  static State Check(vtkVoxel*, double tolerance);
  static State Check(vtkHexahedron*, double tolerance);
  static State Check(vtkWedge*, double tolerance);
  static State Check(vtkPyramid*, double tolerance);
  static State Check(vtkPentagonalPrism*, double tolerance);
  static State Check(vtkHexagonalPrism*, double tolerance);
  static State Check(vtkQuadraticEdge*, double tolerance);
  static State Check(vtkQuadraticTriangle*, double tolerance);
  static State Check(vtkQuadraticQuad*, double tolerance);
  static State Check(vtkQuadraticPolygon*, double tolerance);
  static State Check(vtkQuadraticTetra*, double tolerance);
  static State Check(vtkQuadraticHexahedron*, double tolerance);
  static State Check(vtkQuadraticWedge*, double tolerance);
  static State Check(vtkQuadraticPyramid*, double tolerance);
  static State Check(vtkBiQuadraticQuad*, double tolerance);
  static State Check(vtkTriQuadraticHexahedron*, double tolerance);
  static State Check(vtkQuadraticLinearQuad*, double tolerance);
  static State Check(vtkQuadraticLinearWedge*, double tolerance);
  static State Check(vtkBiQuadraticQuadraticWedge*, double tolerance);
  static State Check(vtkBiQuadraticQuadraticHexahedron*, double tolerance);
  static State Check(vtkBiQuadraticTriangle*, double tolerance);
  static State Check(vtkCubicLine*, double tolerance);
  static State Check(vtkConvexPointSet*, double tolerance);
  static State Check(vtkPolyhedron*, double tolerance);
  static State Check(vtkLagrangeCurve*, double tolerance);
  static State Check(vtkLagrangeTriangle*, double tolerance);
  static State Check(vtkLagrangeQuadrilateral*, double tolerance);
  static State Check(vtkLagrangeTetra*, double tolerance);
  static State Check(vtkLagrangeHexahedron*, double tolerance);
  static State Check(vtkLagrangeWedge*, double tolerance);


  vtkSetClampMacro(Tolerance, double, 0.0, VTK_DOUBLE_MAX);
  vtkGetMacro(Tolerance, double);

protected:
  vtkCellValidator();
  ~vtkCellValidator() override {}

  double Tolerance;

  int RequestData(vtkInformation *, vtkInformationVector **,
                  vtkInformationVector *) override;

  static bool NoIntersectingEdges(vtkCell* cell, double tolerance);
  static bool NoIntersectingFaces(vtkCell* cell, double tolerance);
  static bool ContiguousEdges(vtkCell* twoDimensionalCell, double tolerance);
  static bool Convex(vtkCell* cell, double tolerance);
  static bool FacesAreOrientedCorrectly(vtkCell* threeDimensionalCell,
                                        double tolerance);

private:
  vtkCellValidator(const vtkCellValidator&) = delete;
  void operator=(const vtkCellValidator&) = delete;
};

#endif