1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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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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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: G4SurfaceBoundary.hh,v 1.8 2006/06/29 18:40:45 gunter Exp $ |
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28 | // GEANT4 tag $Name: HEAD $ |
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29 | // |
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30 | // ---------------------------------------------------------------------- |
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31 | // Class G4SurfaceBoundary |
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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 surface boundary. |
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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 included_G4SurfaceBoundary |
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41 | #define included_G4SurfaceBoundary |
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42 | |
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43 | #include "G4Point3D.hh" |
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44 | #include "G4Point3DVector.hh" |
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45 | #include "G4Vector3D.hh" |
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46 | #include "G4Transform3D.hh" |
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47 | #include "G4Curve.hh" |
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48 | #include "G4CurveVector.hh" |
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49 | #include "G4CurveRayIntersection.hh" |
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50 | |
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51 | class G4Ray; |
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52 | class G4CylindricalSurface; |
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53 | |
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54 | class G4SurfaceBoundary |
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55 | { |
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56 | |
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57 | public: // with description |
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58 | |
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59 | |
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60 | G4SurfaceBoundary(); |
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61 | ~G4SurfaceBoundary(); |
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62 | // Constructor & destructor. |
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63 | |
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64 | void Init(const G4CurveVector& bounds0); |
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65 | // Initializes with a set of closed curves, each of which is an |
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66 | // (inner or outer) boundary. No responsibility to delete the curves |
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67 | // is taken. |
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68 | |
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69 | inline const G4CurveVector& GetBounds() const; |
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70 | // Returns closed curve boundaries. |
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71 | |
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72 | inline const G4BoundingBox3D& BBox() const; |
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73 | // Returns the bounding-box. |
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74 | |
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75 | G4SurfaceBoundary* Project(const G4Transform3D& tr = |
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76 | HepGeom::Transform3D::Identity); |
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77 | // Projection onto the xy plane after transformation tr. |
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78 | // The returned object is allocated dynamically; it is the caller's |
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79 | // responsibility to delete it. |
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80 | // In case the projection maps a line into a point, 0 is returned. |
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81 | |
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82 | G4int IntersectRay2D(const G4Ray& ray); |
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83 | // Intersects a 2D boundary with a ray. The ray is projected onto the |
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84 | // xy plane. If no intersection 0 is returned, otherwise 1 is returned. |
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85 | // and the intersection set to intersection0. |
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86 | // The intersection point is: ray.start+ray.dir*intersection0. |
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87 | |
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88 | G4bool Tangent(G4CurvePoint& cp, G4Vector3D& v); |
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89 | // Tangent vector to a curve at the point with parameter u. |
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90 | // Returns true if exists. The vector is stored in v. |
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91 | |
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92 | |
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93 | public: // without description |
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94 | |
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95 | void SplitWithPlane(const G4Point3D& p0, |
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96 | const G4Vector3D& n, |
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97 | G4SurfaceBoundary*& new1, |
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98 | G4SurfaceBoundary*& new2 ); |
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99 | // Splits a boundary with a plane containing p0 with normal n. |
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100 | // Pointers to the resulting boundaries are put into new1 and new2. |
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101 | // It is the caller's responsibility to delete them. |
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102 | // To be implemented yet. |
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103 | |
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104 | void SplitWithCylinder(const G4CylindricalSurface& c, |
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105 | G4SurfaceBoundary*& new1, |
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106 | G4SurfaceBoundary*& new2 ); |
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107 | // Splits a boundary with a cylindrical surface. |
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108 | // Pointers to the resulting boundaries are put into new1 and new2. |
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109 | // It is the caller's responsibility to delete them. |
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110 | // To be implemented yet. |
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111 | |
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112 | inline G4int GetNumberOfPoints() const; |
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113 | inline const G4Point3D& GetPoint(G4int Count) const; |
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114 | // Functions probably not used and should be removed in the future |
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115 | |
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116 | // void IntersectRay2D(const G4Ray& ray, G4CurveRayIntersection& is); |
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117 | |
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118 | private: |
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119 | |
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120 | G4SurfaceBoundary(const G4SurfaceBoundary&); |
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121 | G4SurfaceBoundary& operator=(const G4SurfaceBoundary&); |
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122 | // Private copy constructor and assignment operator. |
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123 | |
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124 | private: |
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125 | |
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126 | G4Point3DVector points; |
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127 | G4CurveVector bounds; |
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128 | G4BoundingBox3D bBox; |
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129 | |
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130 | // to speed up the tangent computation |
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131 | G4CurveRayIntersection lastIntersection; |
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132 | |
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133 | }; |
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134 | |
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135 | #include "G4SurfaceBoundary.icc" |
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136 | |
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137 | #endif |
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