/usr/include/vtk-6.3/vtkImplicitPolyDataDistance.h is in libvtk6-dev 6.3.0+dfsg1-11build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | /*=========================================================================
Program: Visualization Toolkit
Module: vtkImplicitPolyDataDistance.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.
=========================================================================*/
// .NAME vtkImplicitPolyDataDistance
// .SECTION Description
//
// Implicit function that computes the distance from a point x to the
// nearest point p on an input vtkPolyData. The sign of the function
// is set to the sign of the dot product between the angle-weighted
// pseudonormal at the nearest surface point and the vector x - p.
// Points interior to the geometry have a negative distance, points on
// the exterior have a positive distance, and points on the input
// vtkPolyData have a distance of zero. The gradient of the function
// is the angle-weighted pseudonormal at the nearest point.
//
// Baerentzen, J. A. and Aanaes, H. (2005). Signed distance
// computation using the angle weighted pseudonormal. IEEE
// Transactions on Visualization and Computer Graphics, 11:243-253.
//
// This code was contributed in the VTK Journal paper:
// "Boolean Operations on Surfaces in VTK Without External Libraries"
// by Cory Quammen, Chris Weigle C., Russ Taylor
// http://hdl.handle.net/10380/3262
// http://www.midasjournal.org/browse/publication/797
#ifndef vtkImplicitPolyDataDistance_h
#define vtkImplicitPolyDataDistance_h
#include "vtkFiltersCoreModule.h" // For export macro
#include "vtkImplicitFunction.h"
class vtkCellLocator;
class vtkPolyData;
class VTKFILTERSCORE_EXPORT vtkImplicitPolyDataDistance : public vtkImplicitFunction
{
public:
static vtkImplicitPolyDataDistance *New();
vtkTypeMacro(vtkImplicitPolyDataDistance,vtkImplicitFunction);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Return the MTime also considering the Input dependency.
unsigned long GetMTime();
// Description:
// Evaluate plane equation of nearest triangle to point x[3].
double EvaluateFunction(double x[3]);
// Description:
// Evaluate function gradient of nearest triangle to point x[3].
void EvaluateGradient(double x[3], double g[3]);
// Description:
// Set the input vtkPolyData used for the implicit function
// evaluation. Passes input through an internal instance of
// vtkTriangleFilter to remove vertices and lines, leaving only
// triangular polygons for evaluation as implicit planes.
void SetInput(vtkPolyData *input);
// Description:
// Set/get the function value to use if no input vtkPolyData
// specified.
vtkSetMacro(NoValue, double);
vtkGetMacro(NoValue, double);
// Description:
// Set/get the function gradient to use if no input vtkPolyData
// specified.
vtkSetVector3Macro(NoGradient, double);
vtkGetVector3Macro(NoGradient, double);
// Description:
// Set/get the tolerance usued for the locator.
vtkGetMacro(Tolerance, double);
vtkSetMacro(Tolerance, double);
protected:
vtkImplicitPolyDataDistance();
~vtkImplicitPolyDataDistance();
double SharedEvaluate( double x[3], double n[3] );
private:
vtkImplicitPolyDataDistance(const vtkImplicitPolyDataDistance&); // Not implemented.
void operator=(const vtkImplicitPolyDataDistance&); // Not implemented.
double NoValue;
double NoGradient[3];
double Tolerance;
vtkPolyData *Input;
vtkCellLocator *Locator;
};
#endif
|