vtkCellCentersPointPlacer.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkCellCentersPointPlacer.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 vtkCellCentersPointPlacer_h
#define vtkCellCentersPointPlacer_h
 
#include "vtkInteractionWidgetsModule.h" // For export macro
#include "vtkPointPlacer.h"
 
class vtkRenderer;
class vtkPropCollection;
class vtkProp;
class vtkCellPicker;
 
class VTKINTERACTIONWIDGETS_EXPORT vtkCellCentersPointPlacer : public vtkPointPlacer
{
public:
  static vtkCellCentersPointPlacer* New();
 
 
  vtkTypeMacro(vtkCellCentersPointPlacer, vtkPointPlacer);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  // Descuription:
  // Add an actor (that represents a terrain in a rendererd scene) to the
  // list. Only props in this list are considered by the PointPlacer
  virtual void AddProp(vtkProp*);
  virtual void RemoveViewProp(vtkProp* prop);
  virtual void RemoveAllProps();
  int HasProp(vtkProp*);
  int GetNumberOfProps();
 
  int ComputeWorldPosition(
    vtkRenderer* ren, double displayPos[2], double worldPos[3], double worldOrient[9]) override;
 
  int ComputeWorldPosition(vtkRenderer* ren, double displayPos[2], double refWorldPos[3],
    double worldPos[3], double worldOrient[9]) override;
 
  int ValidateWorldPosition(double worldPos[3]) override;
 
  int ValidateDisplayPosition(vtkRenderer*, double displayPos[2]) override;
 
  int ValidateWorldPosition(double worldPos[3], double worldOrient[9]) override;
 
 
  vtkGetObjectMacro(CellPicker, vtkCellPicker);
 
 
  vtkSetMacro(Mode, int);
  vtkGetMacro(Mode, int);
 
  enum
  {
    ParametricCenter = 0,
    CellPointsMean,
    None
  };
 
protected:
  vtkCellCentersPointPlacer();
  ~vtkCellCentersPointPlacer() override;
 
  // The props that represents the terrain data (one or more) in a rendered
  // scene
  vtkPropCollection* PickProps;
  vtkCellPicker* CellPicker;
  int Mode;
 
private:
  vtkCellCentersPointPlacer(const vtkCellCentersPointPlacer&) = delete;
  void operator=(const vtkCellCentersPointPlacer&) = delete;
};
 
#endif