1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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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: G4NURBScylinder.cc,v 1.8 2006/06/29 19:06:47 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 | // Olivier Crumeyrolle 12 September 1996 |
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32 | |
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33 | // Cylinder builder implementation |
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34 | // OC 090796 |
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35 | |
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36 | #include "G4NURBScylinder.hh" |
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37 | |
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38 | // the cylinder constructor use the first G4NURBS constructor |
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39 | // look in G4NURBStube if you want to see how to use the second one. |
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40 | |
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41 | G4NURBScylinder::G4NURBScylinder(G4double R, G4double DZ) |
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42 | : G4NURBS ( 2, 3, // linear along U, quadratic along V |
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43 | 4, 9, // half rectangle along U, circle along V |
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44 | (new t_CtrlPt [ 4 * 9 ]), // the array for CtrlPts |
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45 | 0, // the knot vector along U will be generated |
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46 | (new t_Knot [ 3 + 9 ]) ) // knot vector for the circle |
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47 | { |
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48 | // define the V knot vector |
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49 | m[V].pKnots[ 0] = 0; |
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50 | m[V].pKnots[ 1] = 0; |
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51 | m[V].pKnots[ 2] = 0; |
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52 | m[V].pKnots[ 3] = 0.25; |
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53 | m[V].pKnots[ 4] = 0.25; |
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54 | m[V].pKnots[ 5] = 0.5; |
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55 | m[V].pKnots[ 6] = 0.5; |
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56 | m[V].pKnots[ 7] = 0.75; |
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57 | m[V].pKnots[ 8] = 0.75; |
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58 | m[V].pKnots[ 9] = 1; |
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59 | m[V].pKnots[10] = 1; |
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60 | m[V].pKnots[11] = 1; |
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61 | |
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62 | // define control points |
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63 | |
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64 | const G4double sr2o2 = std::sqrt(2.)/2. ; |
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65 | |
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66 | CP(mpCtrlPts[ 0] , 0, 0, DZ, 1 ); |
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67 | CP(mpCtrlPts[ 1] , R, 0, DZ, 1 ); |
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68 | CP(mpCtrlPts[ 2] , R, 0, -DZ, 1 ); |
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69 | CP(mpCtrlPts[ 3] , 0, 0, -DZ, 1 ); |
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70 | |
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71 | CP(mpCtrlPts[ 4] , 0, 0, DZ, 1 ); |
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72 | CP(mpCtrlPts[ 5] , R, R, DZ, 1 , sr2o2); |
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73 | CP(mpCtrlPts[ 6] , R, R,-DZ, 1 , sr2o2); |
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74 | CP(mpCtrlPts[ 7] , 0, 0, -DZ, 1 ); |
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75 | |
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76 | CP(mpCtrlPts[ 8] , 0, 0, DZ, 1 ); |
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77 | CP(mpCtrlPts[ 9] , 0, R, DZ, 1 ); |
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78 | CP(mpCtrlPts[10] , 0, R, -DZ, 1 ); |
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79 | CP(mpCtrlPts[11] , 0, 0, -DZ, 1 ); |
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80 | |
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81 | CP(mpCtrlPts[12] , 0, 0, DZ, 1 ); |
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82 | CP(mpCtrlPts[13] , -R, R, DZ, 1 , sr2o2); |
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83 | CP(mpCtrlPts[14] , -R, R,-DZ, 1 , sr2o2); |
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84 | CP(mpCtrlPts[15] , 0, 0, -DZ, 1 ); |
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85 | |
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86 | CP(mpCtrlPts[16] , 0, 0, DZ, 1 ); |
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87 | CP(mpCtrlPts[17] , -R, 0, DZ, 1 ); |
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88 | CP(mpCtrlPts[18] , -R, 0, -DZ, 1 ); |
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89 | CP(mpCtrlPts[19] , 0, 0, -DZ, 1 ); |
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90 | |
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91 | CP(mpCtrlPts[20] , 0, 0, DZ, 1 ); |
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92 | CP(mpCtrlPts[21] , -R,-R, DZ, 1 , sr2o2); |
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93 | CP(mpCtrlPts[22] , -R,-R,-DZ, 1 , sr2o2); |
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94 | CP(mpCtrlPts[23] , 0, 0, -DZ, 1 ); |
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95 | |
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96 | CP(mpCtrlPts[24] , 0, 0, DZ, 1 ); |
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97 | CP(mpCtrlPts[25] , 0, -R, DZ, 1 ); |
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98 | CP(mpCtrlPts[26] , 0, -R,-DZ, 1 ); |
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99 | CP(mpCtrlPts[27] , 0, 0, -DZ, 1 ); |
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100 | |
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101 | CP(mpCtrlPts[28] , 0, 0, DZ, 1 ); |
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102 | CP(mpCtrlPts[29] , R,-R, DZ, 1 , sr2o2); |
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103 | CP(mpCtrlPts[30] , R,-R,-DZ, 1 , sr2o2); |
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104 | CP(mpCtrlPts[31] , 0, 0, -DZ, 1 ); |
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105 | |
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106 | CP(mpCtrlPts[32] , 0, 0, DZ, 1 ); |
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107 | CP(mpCtrlPts[33] , R, 0, DZ, 1 ); |
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108 | CP(mpCtrlPts[34] , R, 0, -DZ, 1 ); |
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109 | CP(mpCtrlPts[35] , 0, 0, -DZ, 1 ); |
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110 | } |
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111 | |
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112 | const char* G4NURBScylinder::Whoami() const |
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113 | { |
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114 | return "Cylinder"; |
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115 | } |
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