vtkBezierContourLineInterpolator.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkBezierContourLineInterpolator_h
#define vtkBezierContourLineInterpolator_h
 
#include "vtkContourLineInterpolator.h"
#include "vtkInteractionWidgetsModule.h" // For export macro
 
VTK_ABI_NAMESPACE_BEGIN
class VTKINTERACTIONWIDGETS_EXPORT vtkBezierContourLineInterpolator
  : public vtkContourLineInterpolator
{
public:
  static vtkBezierContourLineInterpolator* New();
 
 
  vtkTypeMacro(vtkBezierContourLineInterpolator, vtkContourLineInterpolator);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  int InterpolateLine(vtkRenderer* ren, vtkContourRepresentation* rep, int idx1, int idx2) override;
 
 
  vtkSetClampMacro(MaximumCurveError, double, 0.0, VTK_DOUBLE_MAX);
  vtkGetMacro(MaximumCurveError, double);
 
 
  vtkSetClampMacro(MaximumCurveLineSegments, int, 1, 1000);
  vtkGetMacro(MaximumCurveLineSegments, int);
 
  void GetSpan(int nodeIndex, vtkIntArray* nodeIndices, vtkContourRepresentation* rep) override;
 
protected:
  vtkBezierContourLineInterpolator();
  ~vtkBezierContourLineInterpolator() override;
 
  void ComputeMidpoint(double p1[3], double p2[3], double mid[3])
  {
    mid[0] = (p1[0] + p2[0]) / 2;
    mid[1] = (p1[1] + p2[1]) / 2;
    mid[2] = (p1[2] + p2[2]) / 2;
  }
 
  double MaximumCurveError;
  int MaximumCurveLineSegments;
 
private:
  vtkBezierContourLineInterpolator(const vtkBezierContourLineInterpolator&) = delete;
  void operator=(const vtkBezierContourLineInterpolator&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif