/usr/include/vtk-7.1/vtkBezierContourLineInterpolator.h is in libvtk7-dev 7.1.1+dfsg1-2.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 | /*=========================================================================
Program: Visualization Toolkit
Module: vtkBezierContourLineInterpolator.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.
=========================================================================*/
/**
* @class vtkBezierContourLineInterpolator
* @brief Interpolates supplied nodes with bezier line segments
*
* The line interpolator interpolates supplied nodes (see InterpolateLine)
* with Bezier line segments. The fitness of the curve may be controlled using
* SetMaximumCurveError and SetMaximumNumberOfLineSegments.
*
* @sa
* vtkContourLineInterpolator
*/
#ifndef vtkBezierContourLineInterpolator_h
#define vtkBezierContourLineInterpolator_h
#include "vtkInteractionWidgetsModule.h" // For export macro
#include "vtkContourLineInterpolator.h"
class VTKINTERACTIONWIDGETS_EXPORT vtkBezierContourLineInterpolator
: public vtkContourLineInterpolator
{
public:
/**
* Instantiate this class.
*/
static vtkBezierContourLineInterpolator *New();
//@{
/**
* Standard methods for instances of this class.
*/
vtkTypeMacro(vtkBezierContourLineInterpolator, vtkContourLineInterpolator);
void PrintSelf(ostream& os, vtkIndent indent);
//@}
virtual int InterpolateLine( vtkRenderer *ren,
vtkContourRepresentation *rep,
int idx1, int idx2 );
//@{
/**
* The difference between a line segment connecting two points and the curve
* connecting the same points. In the limit of the length of the curve
* dx -> 0, the two values will be the same. The smaller this number, the
* finer the bezier curve will be interpolated. Default is 0.005
*/
vtkSetClampMacro(MaximumCurveError, double, 0.0, VTK_DOUBLE_MAX);
vtkGetMacro(MaximumCurveError, double);
//@}
//@{
/**
* Maximum number of bezier line segments between two nodes. Larger values
* create a finer interpolation. Default is 100.
*/
vtkSetClampMacro(MaximumCurveLineSegments, int, 1, 1000);
vtkGetMacro(MaximumCurveLineSegments, int);
//@}
/**
* Span of the interpolator, i.e. the number of control points it's supposed
* to interpolate given a node.
* The first argument is the current nodeIndex.
* i.e., you'd be trying to interpolate between nodes "nodeIndex" and
* "nodeIndex-1", unless you're closing the contour, in which case you're
* trying to interpolate "nodeIndex" and "Node=0". The node span is
* returned in a vtkIntArray.
* The node span is returned in a vtkIntArray. The node span returned by
* this interpolator will be a 2-tuple with a span of 4.
*/
virtual void GetSpan(int nodeIndex, vtkIntArray *nodeIndices,
vtkContourRepresentation *rep);
protected:
vtkBezierContourLineInterpolator();
~vtkBezierContourLineInterpolator();
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&) VTK_DELETE_FUNCTION;
void operator=(const vtkBezierContourLineInterpolator&) VTK_DELETE_FUNCTION;
};
#endif
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