vtkParametricKuen.h 3.06 KB
 Tim Meehan committed Oct 30, 2015 1 2 3 4 5 6 7 8 9 10 11 12 13 14 /*========================================================================= 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. =========================================================================*/  David DeMarle committed Sep 23, 2016 15 16 17 18 19 20 21 22 23 24 25 /** * @class vtkParametricKuen * @brief Generate Kuens' surface. * * 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 * UCLA Mathematics Department. * @par Thanks: * Tim Meehan */  Tim Meehan committed Oct 30, 2015 26   Cory Quammen committed Nov 03, 2015 27 28 #ifndef vtkParametricKuen_h #define vtkParametricKuen_h  Tim Meehan committed Oct 30, 2015 29 30 31  #include "vtkCommonComputationalGeometryModule.h" // For export macro #include "vtkParametricFunction.h"  Bill Lorensen committed Oct 16, 2016 32 #include "vtkMath.h" // for vtkMath::Pi()  Tim Meehan committed Oct 30, 2015 33   Andrew Maclean committed Oct 11, 2016 34 35 class VTKCOMMONCOMPUTATIONALGEOMETRY_EXPORT vtkParametricKuen : public vtkParametricFunction  Tim Meehan committed Oct 30, 2015 36 {  Andrew Maclean committed Oct 11, 2016 37 38 39  public: vtkTypeMacro(vtkParametricKuen, vtkParametricFunction);  Kitware Robot committed Oct 02, 2017 40  void PrintSelf(ostream& os, vtkIndent indent) override;  Andrew Maclean committed Oct 11, 2016 41 42 43  /** * Construct Kuen's surface with the following parameters:  Bill Lorensen committed Oct 16, 2016 44 45  * (MinimumU, MaximumU) = (-4.5, 4.5), * (MinimumV, MaximumV) = (DeltaV0, pi),  Andrew Maclean committed Oct 11, 2016 46 47 48 49 50 51 52 53 54 55  * JoinU = 0, JoinV = 0, * TwistU = 0, TwistV = 0; * ClockwiseOrdering = 0, * DerivativesAvailable = 1, */ static vtkParametricKuen *New(); /** * Return the parametric dimension of the class. */  Kitware Robot committed Oct 02, 2017 56  int GetDimension() override {return 2;}  Andrew Maclean committed Oct 11, 2016 57   Bill Lorensen committed Oct 16, 2016 58 59 60 61 62 63 64 65 66 67 68 69  //@{ /** * Set/Get the value to use when V == 0. * Default is 0.05, giving the best appearance with the default settings. * Setting it to a value less than 0.05 extrapolates the surface * towards a pole in the -z direction. * Setting it to 0 retains the pole whose z-value is -inf. */ vtkSetMacro(DeltaV0, double); vtkGetMacro(DeltaV0, double); //@}  Andrew Maclean committed Oct 11, 2016 70 71 72 73 74 75 76 77  /** * 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$N = D_u\vec{f} \times D_v\vec{f}\f$ . */  Kitware Robot committed Oct 02, 2017 78  void Evaluate(double uvw[3], double Pt[3], double Duvw[9]) override;  Andrew Maclean committed Oct 11, 2016 79 80 81 82 83 84  /** * Calculate a user defined scalar using one or all of uvw, Pt, Duvw. * This method simply returns 0. */ double EvaluateScalar(double uvw[3], double Pt[3],  Kitware Robot committed Oct 02, 2017 85  double Duvw[9]) override;  Andrew Maclean committed Oct 11, 2016 86 87 88  protected: vtkParametricKuen();  Kitware Robot committed Oct 02, 2017 89  ~vtkParametricKuen() override;  Andrew Maclean committed Oct 11, 2016 90 91  private:  Kitware Robot committed Oct 04, 2017 92 93  vtkParametricKuen(const vtkParametricKuen&) = delete; void operator=(const vtkParametricKuen&) = delete;  Bill Lorensen committed Oct 16, 2016 94 95  double DeltaV0;  Tim Meehan committed Oct 30, 2015 96 97 98 }; #endif