vtkPointPicker.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkPointPicker.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 vtkPointPicker_h
#define vtkPointPicker_h
 
#include "vtkPicker.h"
#include "vtkRenderingCoreModule.h" // For export macro
 
class vtkDataSet;
 
class VTKRENDERINGCORE_EXPORT vtkPointPicker : public vtkPicker
{
public:
 
  static vtkPointPicker* New();
  vtkTypeMacro(vtkPointPicker, vtkPicker);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
  vtkGetMacro(PointId, vtkIdType);
 
 
  vtkSetMacro(UseCells, vtkTypeBool);
  vtkGetMacro(UseCells, vtkTypeBool);
  vtkBooleanMacro(UseCells, vtkTypeBool);
 
protected:
  vtkPointPicker();
  ~vtkPointPicker() override = default;
 
  vtkIdType PointId;    // picked point
  vtkTypeBool UseCells; // Use cell points vs. points directly
 
  double IntersectWithLine(const double p1[3], const double p2[3], double tol,
    vtkAssemblyPath* path, vtkProp3D* p, vtkAbstractMapper3D* m) override;
  void Initialize() override;
 
  vtkIdType IntersectDataSetWithLine(const double p1[3], double ray[3], double rayFactor,
    double tol, vtkDataSet* dataSet, double& tMin, double minXYZ[3]);
 
private:
  vtkPointPicker(const vtkPointPicker&) = delete;
  void operator=(const vtkPointPicker&) = delete;
};
 
#endif