vtkPolyLineRepresentation.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkPolyLineRepresentation.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 vtkPolyLineRepresentation_h
#define vtkPolyLineRepresentation_h
 
#include "vtkCurveRepresentation.h"
#include "vtkInteractionWidgetsModule.h" // For export macro
 
class vtkPolyLineSource;
class vtkPointHandleSource;
 
class VTKINTERACTIONWIDGETS_EXPORT vtkPolyLineRepresentation : public vtkCurveRepresentation
{
public:
  static vtkPolyLineRepresentation* New();
  vtkTypeMacro(vtkPolyLineRepresentation, vtkCurveRepresentation);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  void GetPolyData(vtkPolyData* pd) override;
 
  void SetNumberOfHandles(int npts) override;
 
  vtkDoubleArray* GetHandlePositions() override;
 
  double GetSummedLength() override;
 
  void InitializeHandles(vtkPoints* points) override;
 
  void BuildRepresentation() override;
 
protected:
  vtkPolyLineRepresentation();
  ~vtkPolyLineRepresentation() override;
 
  // The poly line source
  vtkNew<vtkPolyLineSource> PolyLineSource;
 
  int InsertHandleOnLine(double* pos) override;
 
  void ClearHandles();
 
  void AllocateHandles(int npts);
 
  void CreateDefaultHandles(int npts);
 
  void ReconfigureHandles(int npts);
 
  // Specialized methods to access handles
  vtkActor* GetHandleActor(int index) override;
  vtkHandleSource* GetHandleSource(int index) override;
  virtual int GetHandleIndex(vtkProp* prop) override;
 
private:
  vtkPolyLineRepresentation(const vtkPolyLineRepresentation&) = delete;
  void operator=(const vtkPolyLineRepresentation&) = delete;
 
  // Glyphs representing hot spots (e.g., handles)
  std::vector<vtkSmartPointer<vtkPointHandleSource>> PointHandles;
  std::vector<vtkSmartPointer<vtkActor>> HandleActors;
};
 
#endif