/usr/include/vtk-7.1/vtkParametricEllipsoid.h is in libvtk7-dev 7.1.1+dfsg1-2.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 | /*=========================================================================
Program: Visualization Toolkit
Module: vtkParametricEllipsoid.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 vtkParametricEllipsoid
* @brief Generate an ellipsoid.
*
* vtkParametricEllipsoid generates an ellipsoid.
* If all the radii are the same, we have a sphere.
* An oblate spheroid occurs if RadiusX = RadiusY > RadiusZ.
* Here the Z-axis forms the symmetry axis. To a first
* approximation, this is the shape of the earth.
* A prolate spheroid occurs if RadiusX = RadiusY < RadiusZ.
*
* For further information about this surface, please consult the
* technical description "Parametric surfaces" in http://www.vtk.org/publications
* in the "VTK Technical Documents" section in the VTk.org web pages.
*
* @par Thanks:
* Andrew Maclean andrew.amaclean@gmail.com for creating and contributing the
* class.
*
*/
#ifndef vtkParametricEllipsoid_h
#define vtkParametricEllipsoid_h
#include "vtkCommonComputationalGeometryModule.h" // For export macro
#include "vtkParametricFunction.h"
class VTKCOMMONCOMPUTATIONALGEOMETRY_EXPORT vtkParametricEllipsoid : public vtkParametricFunction
{
public:
vtkTypeMacro(vtkParametricEllipsoid,vtkParametricFunction);
void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
/**
* Construct an ellipsoid with the following parameters:
* MinimumU = 0, MaximumU = 2*Pi,
* MinimumV = 0, MaximumV = Pi,
* JoinU = 1, JoinV = 0,
* TwistU = 0, TwistV = 0,
* ClockwiseOrdering = 1,
* DerivativesAvailable = 1,
* XRadius = 1, YRadius = 1,
* ZRadius = 1, a sphere in this case.
*/
static vtkParametricEllipsoid *New();
/**
* Return the parametric dimension of the class.
*/
int GetDimension() VTK_OVERRIDE {return 2;}
//@{
/**
* Set/Get the scaling factor for the x-axis. Default is 1.
*/
vtkSetMacro(XRadius,double);
vtkGetMacro(XRadius,double);
//@}
//@{
/**
* Set/Get the scaling factor for the y-axis. Default is 1.
*/
vtkSetMacro(YRadius,double);
vtkGetMacro(YRadius,double);
//@}
//@{
/**
* Set/Get the scaling factor for the z-axis. Default is 1.
*/
vtkSetMacro(ZRadius,double);
vtkGetMacro(ZRadius,double);
//@}
/**
* An ellipsoid.
* This function performs the mapping \f$f(u,v) \rightarrow (x,y,x)\f$, returning it
* as Pt. It also returns the partial derivatives Du and Dv.
* \f$Pt = (x, y, z), Du = (dx/du, dy/du, dz/du), Dv = (dx/dv, dy/dv, dz/dv)\f$ .
* Then the normal is \f$N = Du X Dv\f$ .
*/
void Evaluate(double uvw[3], double Pt[3], double Duvw[9]) VTK_OVERRIDE;
/**
* Calculate a user defined scalar using one or all of uvw, Pt, Duvw.
* uvw are the parameters with Pt being the the cartesian point,
* Duvw are the derivatives of this point with respect to u, v and w.
* Pt, Duvw are obtained from Evaluate().
* This function is only called if the ScalarMode has the value
* vtkParametricFunctionSource::SCALAR_FUNCTION_DEFINED
* If the user does not need to calculate a scalar, then the
* instantiated function should return zero.
*/
double EvaluateScalar(double uvw[3], double Pt[3], double Duvw[9]) VTK_OVERRIDE;
protected:
vtkParametricEllipsoid();
~vtkParametricEllipsoid() VTK_OVERRIDE;
// Variables
double XRadius;
double YRadius;
double ZRadius;
double N1;
double N2;
private:
vtkParametricEllipsoid(const vtkParametricEllipsoid&) VTK_DELETE_FUNCTION;
void operator=(const vtkParametricEllipsoid&) VTK_DELETE_FUNCTION;
};
#endif
|