/usr/include/paraview/vtkParametricKuen.h is in paraview-dev 5.0.1+dfsg1-4.
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 | /*=========================================================================
Program: Visualization Toolkit
Module: vtkParametricKuen.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 vtkParametricKuen - Generate Kuens' surface.
// .SECTION Description
// vtkParametricKuen generates Kuens' surface. This surface has a constant
// negative gaussian curvature. For more information about this surface, see
// Dr. O'Niell's page at the
// <a href="http://www.math.ucla.edu/~bon/kuen.html">UCLA Mathematics Department</a>.
// .SECTION Thanks
// Tim Meehan
#ifndef vtkParametricKuen_h
#define vtkParametricKuen_h
#include "vtkCommonComputationalGeometryModule.h" // For export macro
#include "vtkParametricFunction.h"
class VTKCOMMONCOMPUTATIONALGEOMETRY_EXPORT vtkParametricKuen : public vtkParametricFunction
{
public:
vtkTypeMacro(vtkParametricKuen,vtkParametricFunction);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Construct Kuen's surface with the following parameters:
// (MinimumU, MaximumU) = (-3*pi, 3*pi),
// (MinimumV, MaximumV) = (0., pi),
// JoinU = 0, JoinV = 0,
// TwistU = 0, TwistV = 0;
// ClockwiseOrdering = 1,
// DerivativesAvailable = 1,
static vtkParametricKuen *New();
// Description
// Return the parametric dimension of the class.
virtual int GetDimension() {return 2;}
// Description:
// Kuen's surface.
//
// 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$Pt = (x, y, z), D_u\vec{f} = (dx/du, dy/du, dz/du), D_v\vec{f} = (dx/dv, dy/dv, dz/dv)\f$ .
// Then the normal is \f$N = D_u\vec{f} \times D_v\vec{f}\f$ .
virtual void Evaluate(double uvw[3], double Pt[3], double Duvw[9]);
// Description:
// Calculate a user defined scalar using one or all of uvw, Pt, Duvw.
// This method simply returns 0.
virtual double EvaluateScalar(double uvw[3], double Pt[3], double Duvw[9]);
protected:
vtkParametricKuen();
~vtkParametricKuen();
private:
vtkParametricKuen(const vtkParametricKuen&); // Not implemented.
void operator=(const vtkParametricKuen&); // Not implemented.
};
#endif
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