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: HepPolyhedron.h,v 1.24 2008/04/14 08:50:23 gcosmo 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 Description: |
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32 | // HepPolyhedron is an intermediate class between description of a shape |
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33 | // and visualization systems. It is intended to provide some service like: |
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34 | // - polygonization of shapes with triangulization (quadrilaterization) |
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35 | // of complex polygons; |
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36 | // - calculation of normals for faces and vertices; |
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37 | // - finding result of boolean operation on polyhedra; |
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38 | // |
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39 | // Public constructors: |
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40 | // |
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41 | // HepPolyhedronBox (dx,dy,dz) |
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42 | // - create polyhedron for Box; |
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43 | // HepPolyhedronTrd1 (dx1,dx2,dy,dz) |
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44 | // - create polyhedron for Trd1; |
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45 | // HepPolyhedronTrd2 (dx1,dx2,dy1,dy2,dz) |
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46 | // - create polyhedron for Trd2; |
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47 | // HepPolyhedronTrap (dz,theta,phi, h1,bl1,tl1,alp1, h2,bl2,tl2,alp2) |
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48 | // - create polyhedron for Trap; |
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49 | // HepPolyhedronPara (dx,dy,dz,alpha,theta,phi) |
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50 | // - create polyhedron for Para; |
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51 | // HepPolyhedronTube (rmin,rmax,dz) |
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52 | // - create polyhedron for Tube; |
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53 | // HepPolyhedronTubs (rmin,rmax,dz,phi1,dphi) |
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54 | // - create polyhedron for Tubs; |
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55 | // HepPolyhedronCone (rmin1,rmax1,rmin2,rmax2,dz) |
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56 | // - create polyhedron for Cone; |
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57 | // HepPolyhedronCons (rmin1,rmax1,rmin2,rmax2,dz,phi1,dphi) |
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58 | // - create polyhedron for Cons; |
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59 | // HepPolyhedronPgon (phi,dphi,npdv,nz, z(*),rmin(*),rmax(*)) |
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60 | // - create polyhedron for Pgon; |
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61 | // HepPolyhedronPcon (phi,dphi,nz, z(*),rmin(*),rmax(*)) |
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62 | // - create polyhedron for Pcon; |
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63 | // HepPolyhedronSphere (rmin,rmax,phi,dphi,the,dthe) |
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64 | // - create polyhedron for Sphere; |
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65 | // HepPolyhedronTorus (rmin,rmax,rtor,phi,dphi) |
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66 | // - create polyhedron for Torus; |
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67 | // HepPolyhedronEllipsoid (dx,dy,dz,zcut1,zcut2) |
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68 | // - create polyhedron for Ellipsoid; |
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69 | // Public functions: |
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70 | // |
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71 | // GetNoVertices () - returns number of vertices; |
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72 | // GetNoFacets () - returns number of faces; |
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73 | // GetNextVertexIndex (index,edgeFlag) - get vertex indeces of the |
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74 | // quadrilaterals in order; |
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75 | // returns false when finished each face; |
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76 | // GetVertex (index) - returns vertex by index; |
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77 | // GetNextVertex (vertex,edgeFlag) - get vertices with edge visibility |
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78 | // of the quadrilaterals in order; |
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79 | // returns false when finished each face; |
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80 | // GetNextVertex (vertex,edgeFlag,normal) - get vertices with edge |
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81 | // visibility and normal of the quadrilaterals |
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82 | // in order; returns false when finished each face; |
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83 | // GetNextEdgeIndeces (i1,i2,edgeFlag) - get indeces of the next edge; |
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84 | // returns false for the last edge; |
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85 | // GetNextEdgeIndeces (i1,i2,edgeFlag,iface1,iface2) - get indeces of |
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86 | // the next edge with indeces of the faces |
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87 | // to which the edge belongs; |
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88 | // returns false for the last edge; |
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89 | // GetNextEdge (p1,p2,edgeFlag) - get next edge; |
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90 | // returns false for the last edge; |
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91 | // GetNextEdge (p1,p2,edgeFlag,iface1,iface2) - get next edge with indeces |
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92 | // of the faces to which the edge belongs; |
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93 | // returns false for the last edge; |
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94 | // GetFacet (index,n,nodes,edgeFlags=0,normals=0) - get face by index; |
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95 | // GetNextFacet (n,nodes,edgeFlags=0,normals=0) - get next face with normals |
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96 | // at the nodes; returns false for the last face; |
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97 | // GetNormal (index) - get normal of face given by index; |
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98 | // GetUnitNormal (index) - get unit normal of face given by index; |
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99 | // GetNextNormal (normal) - get normals of each face in order; |
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100 | // returns false when finished all faces; |
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101 | // GetNextUnitNormal (normal) - get normals of unit length of each face |
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102 | // in order; returns false when finished all faces; |
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103 | // GetSurfaceArea() - get surface area of the polyhedron; |
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104 | // GetVolume() - get volume of the polyhedron; |
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105 | // GetNumberOfRotationSteps() - get number of steps for whole circle; |
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106 | // SetNumberOfRotationSteps (n) - set number of steps for whole circle; |
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107 | // ResetNumberOfRotationSteps() - reset number of steps for whole circle |
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108 | // to default value; |
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109 | // IsErrorBooleanProcess()- true if there has been an error during the |
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110 | // processing of a Boolean operation. |
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111 | // History: |
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112 | // |
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113 | // 20.06.96 Evgeni Chernyaev <Evgueni.Tcherniaev@cern.ch> - initial version |
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114 | // |
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115 | // 23.07.96 John Allison |
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116 | // - added GetNoVertices, GetNoFacets, GetNextVertex, GetNextNormal |
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117 | // |
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118 | // 30.09.96 E.Chernyaev |
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119 | // - added GetNextVertexIndex, GetVertex by Yasuhide Sawada |
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120 | // - added GetNextUnitNormal, GetNextEdgeIndeces, GetNextEdge |
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121 | // - improvements: angles now expected in radians |
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122 | // int -> G4int, double -> G4double |
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123 | // - G4ThreeVector replaced by either G4Point3D or G4Normal3D |
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124 | // |
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125 | // 15.12.96 E.Chernyaev |
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126 | // - private functions G4PolyhedronAlloc, G4PolyhedronPrism renamed |
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127 | // to AllocateMemory and CreatePrism |
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128 | // - added private functions GetNumberOfRotationSteps, RotateEdge, |
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129 | // RotateAroundZ, SetReferences |
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130 | // - rewritten G4PolyhedronCons; |
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131 | // - added G4PolyhedronPara, ...Trap, ...Pgon, ...Pcon, ...Sphere, ...Torus, |
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132 | // so full List of implemented shapes now looks like: |
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133 | // BOX, TRD1, TRD2, TRAP, TUBE, TUBS, CONE, CONS, PARA, PGON, PCON, |
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134 | // SPHERE, TORUS |
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135 | // |
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136 | // 01.06.97 E.Chernyaev |
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137 | // - RotateAroundZ modified and SetSideFacets added to allow Rmin=Rmax |
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138 | // in bodies of revolution |
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139 | // |
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140 | // 24.06.97 J.Allison |
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141 | // - added static private member fNumberOfRotationSteps and static public |
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142 | // functions void SetNumberOfRotationSteps (G4int n) and |
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143 | // void ResetNumberOfRotationSteps (). Modified |
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144 | // GetNumberOfRotationSteps() appropriately. Made all three functions |
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145 | // inline (at end of this .hh file). |
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146 | // Usage: |
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147 | // G4Polyhedron::SetNumberOfRotationSteps |
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148 | // (fpView -> GetViewParameters ().GetNoOfSides ()); |
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149 | // pPolyhedron = solid.CreatePolyhedron (); |
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150 | // G4Polyhedron::ResetNumberOfRotationSteps (); |
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151 | // |
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152 | // 19.03.00 E.Chernyaev |
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153 | // - added boolean operations (add, subtract, intersect) on polyhedra; |
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154 | // |
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155 | // 25.05.01 E.Chernyaev |
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156 | // - added GetSurfaceArea() and GetVolume(); |
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157 | // |
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158 | // 05.11.02 E.Chernyaev |
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159 | // - added createTwistedTrap() and createPolyhedron(); |
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160 | // |
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161 | // 06.03.05 J.Allison |
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162 | // - added IsErrorBooleanProcess |
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163 | // |
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164 | // 20.06.05 G.Cosmo |
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165 | // - added HepPolyhedronEllipsoid |
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166 | // |
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167 | |
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168 | #ifndef HEP_POLYHEDRON_HH |
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169 | #define HEP_POLYHEDRON_HH |
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170 | |
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171 | #include <CLHEP/Geometry/Point3D.h> |
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172 | #include <CLHEP/Geometry/Normal3D.h> |
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173 | |
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174 | #ifndef DEFAULT_NUMBER_OF_STEPS |
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175 | #define DEFAULT_NUMBER_OF_STEPS 24 |
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176 | #endif |
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177 | |
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178 | class G4Facet { |
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179 | friend class HepPolyhedron; |
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180 | friend std::ostream& operator<<(std::ostream&, const G4Facet &facet); |
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181 | |
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182 | private: |
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183 | struct G4Edge { int v,f; }; |
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184 | G4Edge edge[4]; |
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185 | |
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186 | public: |
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187 | G4Facet(int v1=0, int f1=0, int v2=0, int f2=0, |
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188 | int v3=0, int f3=0, int v4=0, int f4=0) |
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189 | { edge[0].v=v1; edge[0].f=f1; edge[1].v=v2; edge[1].f=f2; |
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190 | edge[2].v=v3; edge[2].f=f3; edge[3].v=v4; edge[3].f=f4; } |
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191 | }; |
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192 | |
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193 | class HepPolyhedron { |
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194 | friend std::ostream& operator<<(std::ostream&, const HepPolyhedron &ph); |
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195 | |
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196 | protected: |
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197 | static int fNumberOfRotationSteps; |
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198 | int nvert, nface; |
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199 | HepGeom::Point3D<double> *pV; |
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200 | G4Facet *pF; |
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201 | |
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202 | // Re-allocate memory for HepPolyhedron |
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203 | void AllocateMemory(int Nvert, int Nface); |
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204 | |
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205 | // Find neighbouring facet |
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206 | int FindNeighbour(int iFace, int iNode, int iOrder) const; |
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207 | |
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208 | // Find normal at node |
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209 | HepGeom::Normal3D<double> FindNodeNormal(int iFace, int iNode) const; |
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210 | |
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211 | // Create HepPolyhedron for prism with quadrilateral base |
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212 | void CreatePrism(); |
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213 | |
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214 | // Generate facets by revolving an edge around Z-axis |
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215 | void RotateEdge(int k1, int k2, double r1, double r2, |
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216 | int v1, int v2, int vEdge, |
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217 | bool ifWholeCircle, int ns, int &kface); |
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218 | |
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219 | // Set side facets for the case of incomplete rotation |
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220 | void SetSideFacets(int ii[4], int vv[4], |
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221 | int *kk, double *r, |
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222 | double dphi, int ns, int &kface); |
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223 | |
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224 | // Create HepPolyhedron for body of revolution around Z-axis |
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225 | void RotateAroundZ(int nstep, double phi, double dphi, |
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226 | int np1, int np2, |
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227 | const double *z, double *r, |
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228 | int nodeVis, int edgeVis); |
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229 | |
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230 | // For each edge set reference to neighbouring facet |
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231 | void SetReferences(); |
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232 | |
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233 | // Invert the order on nodes in facets |
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234 | void InvertFacets(); |
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235 | |
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236 | public: |
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237 | // Constructor |
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238 | HepPolyhedron() : nvert(0), nface(0), pV(0), pF(0) {} |
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239 | |
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240 | // Copy constructor |
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241 | HepPolyhedron(const HepPolyhedron & from); |
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242 | |
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243 | // Destructor |
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244 | virtual ~HepPolyhedron() { delete [] pV; delete [] pF; } |
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245 | |
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246 | // Assignment |
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247 | HepPolyhedron & operator=(const HepPolyhedron & from); |
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248 | |
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249 | // Get number of vertices |
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250 | int GetNoVertices() const { return nvert; } |
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251 | |
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252 | // Get number of facets |
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253 | int GetNoFacets() const { return nface; } |
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254 | |
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255 | // Transform the polyhedron |
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256 | HepPolyhedron & Transform(const HepGeom::Transform3D & t); |
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257 | |
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258 | // Get next vertex index of the quadrilateral |
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259 | bool GetNextVertexIndex(int & index, int & edgeFlag) const; |
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260 | |
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261 | // Get vertex by index |
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262 | HepGeom::Point3D<double> GetVertex(int index) const; |
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263 | |
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264 | // Get next vertex + edge visibility of the quadrilateral |
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265 | bool GetNextVertex(HepGeom::Point3D<double> & vertex, int & edgeFlag) const; |
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266 | |
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267 | // Get next vertex + edge visibility + normal of the quadrilateral |
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268 | bool GetNextVertex(HepGeom::Point3D<double> & vertex, int & edgeFlag, |
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269 | HepGeom::Normal3D<double> & normal) const; |
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270 | |
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271 | // Get indeces of the next edge with indeces of the faces |
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272 | bool GetNextEdgeIndeces(int & i1, int & i2, int & edgeFlag, |
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273 | int & iface1, int & iface2) const; |
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274 | |
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275 | // Get indeces of the next edge |
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276 | bool GetNextEdgeIndeces(int & i1, int & i2, int & edgeFlag) const; |
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277 | |
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278 | // Get next edge |
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279 | bool GetNextEdge(HepGeom::Point3D<double> &p1, |
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280 | HepGeom::Point3D<double> &p2, int &edgeFlag) const; |
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281 | |
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282 | // Get next edge |
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283 | bool GetNextEdge(HepGeom::Point3D<double> &p1, |
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284 | HepGeom::Point3D<double> &p2, int &edgeFlag, |
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285 | int &iface1, int &iface2) const; |
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286 | |
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287 | // Get face by index |
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288 | void GetFacet(int iFace, int &n, int *iNodes, |
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289 | int *edgeFlags = 0, int *iFaces = 0) const; |
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290 | |
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291 | // Get face by index |
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292 | void GetFacet(int iFace, int &n, HepGeom::Point3D<double> *nodes, |
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293 | int *edgeFlags=0, HepGeom::Normal3D<double> *normals=0) const; |
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294 | |
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295 | // Get next face with normals at the nodes |
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296 | bool GetNextFacet(int &n, HepGeom::Point3D<double> *nodes, int *edgeFlags=0, |
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297 | HepGeom::Normal3D<double> *normals=0) const; |
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298 | |
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299 | // Get normal of the face given by index |
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300 | HepGeom::Normal3D<double> GetNormal(int iFace) const; |
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301 | |
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302 | // Get unit normal of the face given by index |
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303 | HepGeom::Normal3D<double> GetUnitNormal(int iFace) const; |
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304 | |
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305 | // Get normal of the next face |
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306 | bool GetNextNormal(HepGeom::Normal3D<double> &normal) const; |
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307 | |
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308 | // Get normal of unit length of the next face |
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309 | bool GetNextUnitNormal(HepGeom::Normal3D<double> &normal) const; |
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310 | |
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311 | // Boolean operations |
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312 | HepPolyhedron add(const HepPolyhedron &p) const; |
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313 | HepPolyhedron subtract(const HepPolyhedron &p) const; |
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314 | HepPolyhedron intersect(const HepPolyhedron &p) const; |
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315 | // If there has been an error during the above processing.. |
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316 | bool IsErrorBooleanProcess() const; |
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317 | |
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318 | // Get area of the surface of the polyhedron |
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319 | double GetSurfaceArea() const; |
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320 | |
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321 | // Get volume of the polyhedron |
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322 | double GetVolume() const; |
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323 | |
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324 | // Get number of steps for whole circle |
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325 | static int GetNumberOfRotationSteps(); |
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326 | |
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327 | // Set number of steps for whole circle |
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328 | static void SetNumberOfRotationSteps(int n); |
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329 | |
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330 | // Reset number of steps for whole circle to default value |
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331 | static void ResetNumberOfRotationSteps(); |
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332 | |
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333 | /** |
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334 | * Creates polyhedron for twisted trapezoid. |
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335 | * The trapezoid is given by two bases perpendicular to the z-axis. |
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336 | * |
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337 | * @param Dz half length in z |
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338 | * @param xy1 1st base (at z = -Dz) |
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339 | * @param xy2 2nd base (at z = +Dz) |
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340 | * @return status of the operation - is non-zero in case of problem |
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341 | */ |
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342 | int createTwistedTrap(double Dz, |
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343 | const double xy1[][2], const double xy2[][2]); |
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344 | |
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345 | /** |
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346 | * Creates user defined polyhedron. |
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347 | * This function allows to the user to define arbitrary polyhedron. |
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348 | * The faces of the polyhedron should be either triangles or planar |
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349 | * quadrilateral. Nodes of a face are defined by indexes pointing to |
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350 | * the elements in the xyz array. Numeration of the elements in the |
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351 | * array starts from 1 (like in fortran). The indexes can be positive |
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352 | * or negative. Negative sign means that the corresponding edge is |
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353 | * invisible. The normal of the face should be directed to exterior |
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354 | * of the polyhedron. |
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355 | * |
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356 | * @param Nnodes number of nodes |
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357 | * @param Nfaces number of faces |
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358 | * @param xyz nodes |
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359 | * @param faces faces (quadrilaterals or triangles) |
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360 | * @return status of the operation - is non-zero in case of problem |
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361 | */ |
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362 | int createPolyhedron(int Nnodes, int Nfaces, |
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363 | const double xyz[][3], const int faces[][4]); |
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364 | }; |
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365 | |
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366 | class HepPolyhedronTrd2 : public HepPolyhedron |
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367 | { |
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368 | public: |
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369 | HepPolyhedronTrd2(double Dx1, double Dx2, |
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370 | double Dy1, double Dy2, double Dz); |
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371 | virtual ~HepPolyhedronTrd2(); |
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372 | }; |
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373 | |
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374 | class HepPolyhedronTrd1 : public HepPolyhedronTrd2 |
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375 | { |
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376 | public: |
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377 | HepPolyhedronTrd1(double Dx1, double Dx2, |
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378 | double Dy, double Dz); |
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379 | virtual ~HepPolyhedronTrd1(); |
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380 | }; |
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381 | |
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382 | class HepPolyhedronBox : public HepPolyhedronTrd2 |
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383 | { |
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384 | public: |
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385 | HepPolyhedronBox(double Dx, double Dy, double Dz); |
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386 | virtual ~HepPolyhedronBox(); |
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387 | }; |
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388 | |
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389 | class HepPolyhedronTrap : public HepPolyhedron |
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390 | { |
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391 | public: |
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392 | HepPolyhedronTrap(double Dz, double Theta, double Phi, |
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393 | double Dy1, |
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394 | double Dx1, double Dx2, double Alp1, |
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395 | double Dy2, |
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396 | double Dx3, double Dx4, double Alp2); |
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397 | virtual ~HepPolyhedronTrap(); |
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398 | }; |
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399 | |
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400 | class HepPolyhedronPara : public HepPolyhedronTrap |
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401 | { |
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402 | public: |
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403 | HepPolyhedronPara(double Dx, double Dy, double Dz, |
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404 | double Alpha, double Theta, double Phi); |
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405 | virtual ~HepPolyhedronPara(); |
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406 | }; |
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407 | |
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408 | class HepPolyhedronParaboloid : public HepPolyhedron |
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409 | { |
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410 | public: |
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411 | HepPolyhedronParaboloid(double r1, |
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412 | double r2, |
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413 | double dz, |
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414 | double Phi1, |
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415 | double Dphi); |
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416 | virtual ~HepPolyhedronParaboloid(); |
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417 | }; |
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418 | |
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419 | class HepPolyhedronHype : public HepPolyhedron |
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420 | { |
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421 | public: |
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422 | HepPolyhedronHype(double r1, |
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423 | double r2, |
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424 | double tan1, |
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425 | double tan2, |
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426 | double halfZ); |
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427 | virtual ~HepPolyhedronHype(); |
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428 | }; |
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429 | |
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430 | class HepPolyhedronCons : public HepPolyhedron |
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431 | { |
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432 | public: |
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433 | HepPolyhedronCons(double Rmn1, double Rmx1, |
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434 | double Rmn2, double Rmx2, double Dz, |
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435 | double Phi1, double Dphi); |
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436 | virtual ~HepPolyhedronCons(); |
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437 | }; |
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438 | |
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439 | class HepPolyhedronCone : public HepPolyhedronCons |
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440 | { |
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441 | public: |
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442 | HepPolyhedronCone(double Rmn1, double Rmx1, |
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443 | double Rmn2, double Rmx2, double Dz); |
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444 | virtual ~HepPolyhedronCone(); |
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445 | }; |
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446 | |
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447 | class HepPolyhedronTubs : public HepPolyhedronCons |
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448 | { |
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449 | public: |
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450 | HepPolyhedronTubs(double Rmin, double Rmax, double Dz, |
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451 | double Phi1, double Dphi); |
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452 | virtual ~HepPolyhedronTubs(); |
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453 | }; |
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454 | |
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455 | class HepPolyhedronTube : public HepPolyhedronCons |
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456 | { |
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457 | public: |
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458 | HepPolyhedronTube (double Rmin, double Rmax, double Dz); |
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459 | virtual ~HepPolyhedronTube(); |
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460 | }; |
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461 | |
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462 | class HepPolyhedronPgon : public HepPolyhedron |
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463 | { |
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464 | public: |
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465 | HepPolyhedronPgon(double phi, double dphi, int npdv, int nz, |
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466 | const double *z, |
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467 | const double *rmin, |
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468 | const double *rmax); |
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469 | virtual ~HepPolyhedronPgon(); |
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470 | }; |
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471 | |
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472 | class HepPolyhedronPcon : public HepPolyhedronPgon |
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473 | { |
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474 | public: |
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475 | HepPolyhedronPcon(double phi, double dphi, int nz, |
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476 | const double *z, |
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477 | const double *rmin, |
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478 | const double *rmax); |
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479 | virtual ~HepPolyhedronPcon(); |
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480 | }; |
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481 | |
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482 | class HepPolyhedronSphere : public HepPolyhedron |
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483 | { |
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484 | public: |
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485 | HepPolyhedronSphere(double rmin, double rmax, |
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486 | double phi, double dphi, |
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487 | double the, double dthe); |
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488 | virtual ~HepPolyhedronSphere(); |
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489 | }; |
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490 | |
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491 | class HepPolyhedronTorus : public HepPolyhedron |
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492 | { |
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493 | public: |
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494 | HepPolyhedronTorus(double rmin, double rmax, double rtor, |
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495 | double phi, double dphi); |
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496 | virtual ~HepPolyhedronTorus(); |
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497 | }; |
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498 | |
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499 | class HepPolyhedronEllipsoid : public HepPolyhedron |
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500 | { |
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501 | public: |
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502 | HepPolyhedronEllipsoid(double dx, double dy, double dz, |
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503 | double zcut1, double zcut2); |
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504 | virtual ~HepPolyhedronEllipsoid(); |
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505 | }; |
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506 | |
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507 | class HepPolyhedronEllipticalCone : public HepPolyhedron |
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508 | { |
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509 | public: |
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510 | HepPolyhedronEllipticalCone(double dx, double dy, double z, |
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511 | double zcut1); |
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512 | virtual ~HepPolyhedronEllipticalCone(); |
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513 | }; |
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514 | |
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515 | #endif /* HEP_POLYHEDRON_HH */ |
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