vtkPVRayCastPickingHelper.h

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// SPDX-FileCopyrightText: Copyright (c) Kitware Inc.
// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkPVRayCastPickingHelper_h
#define vtkPVRayCastPickingHelper_h
 
#include "vtkObject.h"
#include "vtkRemotingViewsModule.h" //needed for exports
 
class vtkAlgorithm;
class vtkCell;
class vtkDataSet;
 
class VTKREMOTINGVIEWS_EXPORT vtkPVRayCastPickingHelper : public vtkObject
{
public:
  static vtkPVRayCastPickingHelper* New();
  vtkTypeMacro(vtkPVRayCastPickingHelper, vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  void SetInput(vtkAlgorithm*);
 
  void SetSelection(vtkAlgorithm*);
 
 
  vtkSetVector3Macro(PointA, double);
  vtkGetVector3Macro(PointA, double);
 
 
  vtkSetVector3Macro(PointB, double);
  vtkGetVector3Macro(PointB, double);
 
 
  vtkSetMacro(SnapOnMeshPoint, bool);
  vtkGetMacro(SnapOnMeshPoint, bool);
 
  void ComputeIntersection();
 
  // Provide access to the resulting intersection
  vtkGetVector3Macro(Intersection, double);
 
  // Provide access to the resulting intersection normal
  vtkGetVector3Macro(IntersectionNormal, double);
 
protected:
  vtkPVRayCastPickingHelper();
  ~vtkPVRayCastPickingHelper() override;
 
  void ComputeIntersectionFromDataSet(vtkDataSet* ds);
 
  int ComputeSurfaceNormal(vtkDataSet* data, vtkCell* cell, int subId, double* weights);
 
  double Intersection[3];
  double IntersectionNormal[3];
  double PointA[3];
  double PointB[3];
  bool SnapOnMeshPoint;
  vtkAlgorithm* Input;
  vtkAlgorithm* Selection;
 
private:
  vtkPVRayCastPickingHelper(const vtkPVRayCastPickingHelper&) = delete;
  void operator=(const vtkPVRayCastPickingHelper&) = delete;
};
 
#endif