1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // |
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27 | // $Id: G4BSplineSurface.hh,v 1.11 2006/06/29 18:38:11 gunter Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-03 $ |
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29 | // |
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30 | // ---------------------------------------------------------------------- |
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31 | // Class G4BSplineSurface |
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32 | // |
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33 | // Class description: |
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34 | // |
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35 | // Definition of a generic BSpline surface. |
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36 | |
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37 | // Authors: J.Sulkimo, P.Urban. |
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38 | // Revisions by: L.Broglia, G.Cosmo. |
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39 | // ---------------------------------------------------------------------- |
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40 | #ifndef __BSPLINESURFACE_H |
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41 | #define __BSPLINESURFACE_H |
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42 | |
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43 | #include "G4Point3D.hh" |
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44 | #include "G4PointRat.hh" |
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45 | #include "G4Surface.hh" |
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46 | #include "G4ProjectedSurface.hh" |
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47 | #include "G4UVHit.hh" |
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48 | |
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49 | class G4BSplineSurface : public G4Surface |
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50 | { |
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51 | |
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52 | public: // with description |
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53 | |
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54 | G4BSplineSurface(); |
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55 | G4BSplineSurface(const char* nurbfilename, G4Ray& rayref); |
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56 | G4BSplineSurface(G4int u, G4int v, G4KnotVector& u_kv, G4KnotVector& v_kv, |
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57 | G4ControlPoints& cp); |
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58 | virtual ~G4BSplineSurface(); |
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59 | // Constructors & destructor. |
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60 | |
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61 | G4int Intersect(const G4Ray&); |
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62 | void CalcBBox(); |
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63 | // Finds the bounds of the b-spline surface. |
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64 | // The bounding box is used for a preliminary check of intersection. |
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65 | |
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66 | inline G4double GetUHit() const; |
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67 | inline G4double GetVHit() const; |
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68 | |
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69 | G4double ClosestDistanceToPoint(const G4Point3D&); |
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70 | |
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71 | inline void Reset(); |
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72 | |
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73 | inline G4int GetRows() const; |
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74 | inline G4int GetCols() const; |
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75 | inline G4Point3D GetControlPoint(G4int a, G4int b) const; |
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76 | // Accessors for control points. |
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77 | |
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78 | public: |
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79 | |
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80 | inline G4int MyType() const; |
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81 | |
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82 | private: |
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83 | |
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84 | G4BSplineSurface(const G4BSplineSurface&); |
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85 | G4BSplineSurface& operator=(const G4BSplineSurface&); |
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86 | // Private copy constructor and assignment operator. |
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87 | |
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88 | void FindIntersections(const G4Ray&); |
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89 | |
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90 | inline G4int GetOrder(G4int direction) const; |
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91 | inline void PutOrder(G4int direction, G4int value); |
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92 | |
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93 | void AddHit(G4double u, G4double v); |
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94 | void ProjectNURBSurfaceTo2D( const G4Plane& ,const G4Plane&, |
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95 | register G4ProjectedSurface*); |
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96 | // Projects the nurb surface so that the z-axis = ray. |
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97 | |
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98 | G4ProjectedSurface* CopyToProjectedSurface(const G4Ray&); |
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99 | G4Point3D FinalIntersection(); |
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100 | |
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101 | // L. Broglia |
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102 | // Because G4BSplineSurface::Evaluate hides the virtual function |
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103 | // G4Surface::Evaluate(const G4Ray&), I modified the function name |
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104 | // G4Point3D Evaluate(); |
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105 | G4Point3D BSEvaluate(); |
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106 | |
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107 | G4PointRat& InternalEvalCrv(G4int i, G4ControlPoints *crv); |
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108 | |
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109 | G4Point3D Evaluation(const G4Ray&); |
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110 | |
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111 | inline G4Vector3D SurfaceNormal(const G4Point3D& Pt) const; |
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112 | |
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113 | private: |
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114 | |
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115 | G4SurfaceList bezier_list; |
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116 | G4SurfaceList projected_list; |
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117 | short dir; |
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118 | G4int order[2]; |
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119 | G4KnotVector *u_knots; |
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120 | G4KnotVector *v_knots; |
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121 | G4KnotVector *tmp_knots; |
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122 | G4ControlPoints *ctl_points; |
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123 | G4UVHit* Hit; |
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124 | G4UVHit* first_hit; |
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125 | G4int ord; |
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126 | G4int k_index; |
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127 | G4double param; |
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128 | G4int Rational; |
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129 | }; |
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130 | |
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131 | #include "G4BSplineSurface.icc" |
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132 | |
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133 | #endif |
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