[807] | 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 | // |
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| 28 | // |
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| 29 | |
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| 30 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 31 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 32 | |
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| 33 | #ifndef F04ElementField_h |
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| 34 | #define F04ElementField_h 1 |
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| 35 | |
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| 36 | #include "globals.hh" |
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| 37 | |
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| 38 | #include "G4Navigator.hh" |
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| 39 | #include "G4TransportationManager.hh" |
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| 40 | |
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| 41 | #include "G4UserLimits.hh" |
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| 42 | #include "G4VisAttributes.hh" |
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| 43 | |
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| 44 | // class F04ElementField - interface for the EM field of one element |
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| 45 | |
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| 46 | // This is the interface class used by GlobalField to compute the field |
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| 47 | // value at a given point[]. |
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| 48 | |
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| 49 | // An element that represents an element with an EM field will |
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| 50 | // derive a class from this one and implement the computation for the |
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| 51 | // element. The construct() function will add the derived object into |
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| 52 | // GlobalField. |
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| 53 | |
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| 54 | class F04ElementField |
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| 55 | { |
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| 56 | |
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| 57 | private: |
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| 58 | |
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| 59 | F04ElementField& operator=(const F04ElementField&); |
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| 60 | |
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| 61 | public: |
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| 62 | |
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| 63 | /// Constructor. |
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| 64 | F04ElementField(const G4ThreeVector, G4LogicalVolume*); |
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| 65 | |
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| 66 | /// the actual implementation constructs the F04ElementField |
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| 67 | void construct(); |
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| 68 | |
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| 69 | /// Destructor. |
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| 70 | virtual ~F04ElementField() { if (aNavigator) delete aNavigator; } |
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| 71 | |
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| 72 | /// setMaxStep(G4double) sets the max. step size |
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| 73 | void setMaxStep(G4double s) |
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| 74 | { |
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| 75 | maxStep = s; |
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| 76 | userLimits->SetMaxAllowedStep(maxStep); |
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| 77 | lvolume->SetUserLimits(userLimits); |
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| 78 | } |
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| 79 | |
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| 80 | /// getMaxStep() returns the max. step size |
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| 81 | G4double getMaxStep() { return maxStep; } |
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| 82 | |
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| 83 | /// setColor(G4String) sets the color |
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| 84 | void setColor(G4String c) |
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| 85 | { |
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| 86 | color = c; |
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| 87 | lvolume->SetVisAttributes(getVisAttribute(color)); |
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| 88 | } |
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| 89 | |
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| 90 | /// getColor() returns the color |
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| 91 | G4String getColor() { return color; } |
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| 92 | |
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| 93 | /// getVisAttribute() returns the appropriate G4VisAttributes. |
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| 94 | static G4VisAttributes* getVisAttribute(G4String color); |
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| 95 | |
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| 96 | /// setGlobalPoint() ensures that the point is within the global |
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| 97 | /// bounding box of this ElementField's global coordinates. |
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| 98 | /// Normally called 8 times for the corners of the local bounding |
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| 99 | /// box, after a local->global coordinate transform. |
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| 100 | /// If never called, the global bounding box is infinite. |
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| 101 | /// BEWARE: if called only once, the bounding box is just a point. |
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| 102 | void setGlobalPoint(const G4double point[4]) |
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| 103 | { |
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| 104 | if(minX == -DBL_MAX || minX > point[0]) minX = point[0]; |
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| 105 | if(minY == -DBL_MAX || minY > point[1]) minY = point[1]; |
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| 106 | if(minZ == -DBL_MAX || minZ > point[2]) minZ = point[2]; |
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| 107 | if(maxX == DBL_MAX || maxX < point[0]) maxX = point[0]; |
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| 108 | if(maxY == DBL_MAX || maxY < point[1]) maxY = point[1]; |
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| 109 | if(maxZ == DBL_MAX || maxZ < point[2]) maxZ = point[2]; |
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| 110 | } |
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| 111 | |
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| 112 | /// isInBoundingBox() returns true if the point is within the |
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| 113 | /// global bounding box - global coordinates. |
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| 114 | bool isInBoundingBox(const G4double point[4]) const |
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| 115 | { |
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| 116 | if(point[2] < minZ || point[2] > maxZ) return false; |
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| 117 | if(point[0] < minX || point[0] > maxX) return false; |
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| 118 | if(point[1] < minY || point[1] > maxY) return false; |
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| 119 | return true; |
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| 120 | } |
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| 121 | |
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| 122 | /// addFieldValue() will add the field value for this element to field[]. |
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| 123 | /// Implementations must be sure to verify that point[] is within |
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| 124 | /// the field region, and do nothing if not. |
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| 125 | /// point[] is in global coordinates and geant4 units; x,y,z,t. |
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| 126 | /// field[] is in geant4 units; Bx,By,Bz,Ex,Ey,Ez. |
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| 127 | /// For efficiency, the caller may (but need not) call |
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| 128 | /// isInBoundingBox(point), and only call this function if that |
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| 129 | /// returns true. |
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| 130 | virtual void |
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| 131 | addFieldValue(const G4double point[4], G4double field[6]) const = 0; |
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| 132 | |
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| 133 | virtual G4double getLength() = 0; |
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| 134 | virtual G4double getWidth() = 0; |
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| 135 | virtual G4double getHeight() = 0; |
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| 136 | |
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| 137 | protected: |
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| 138 | |
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| 139 | G4LogicalVolume* lvolume; |
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| 140 | |
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| 141 | G4AffineTransform global2local; |
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| 142 | |
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| 143 | // F04ElementField(const F04ElementField&); |
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| 144 | |
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| 145 | private: |
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| 146 | |
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| 147 | static G4Navigator* aNavigator; |
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| 148 | |
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| 149 | G4String color; |
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| 150 | |
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| 151 | G4ThreeVector center; |
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| 152 | G4double minX, minY, minZ, maxX, maxY,maxZ; |
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| 153 | |
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| 154 | G4double maxStep; |
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| 155 | G4UserLimits* userLimits; |
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| 156 | |
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| 157 | }; |
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| 158 | |
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| 159 | #endif |
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