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24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // G4VoxelLimits 26 // G4VoxelLimits
27 // 27 //
28 // Class description: 28 // Class description:
29 // 29 //
30 // Represents limitation/restrictions of space 30 // Represents limitation/restrictions of space, where restrictions
31 // are only made perpendicular to the cartesia 31 // are only made perpendicular to the cartesian axes.
32 // 32 //
33 // Member data: 33 // Member data:
34 // 34 //
35 // G4double fxAxisMin,fxAxisMax 35 // G4double fxAxisMin,fxAxisMax
36 // G4double fyAxisMin,fyAxisMax 36 // G4double fyAxisMin,fyAxisMax
37 // G4double fzAxisMin,fzAxisMax 37 // G4double fzAxisMin,fzAxisMax
38 // - The min and max values along each axis. + 38 // - The min and max values along each axis. +-kInfinity if not restricted.
39 39
40 // 13.07.95, P.Kent - Initial version. 40 // 13.07.95, P.Kent - Initial version.
41 // ------------------------------------------- 41 // --------------------------------------------------------------------
42 #ifndef G4VOXELLIMITS_HH 42 #ifndef G4VOXELLIMITS_HH
43 #define G4VOXELLIMITS_HH 1 << 43 #define G4VOXELLIMITS_HH
44 44
45 #include "G4Types.hh" 45 #include "G4Types.hh"
46 #include "geomdefs.hh" 46 #include "geomdefs.hh"
47 47
48 #include "G4ThreeVector.hh" 48 #include "G4ThreeVector.hh"
49 49
50 #include <assert.h> 50 #include <assert.h>
51 51
52 class G4VoxelLimits 52 class G4VoxelLimits
53 { 53 {
54 public: << 54 public: // with description
55 55
56 G4VoxelLimits() = default; << 56 G4VoxelLimits();
57 // Constructor - initialise to be unlimi 57 // Constructor - initialise to be unlimited. Volume unrestricted.
58 58
59 ~G4VoxelLimits() = default; << 59 ~G4VoxelLimits();
60 // Destructor. No actions. 60 // Destructor. No actions.
61 61
62 void AddLimit(const EAxis pAxis, const G4d 62 void AddLimit(const EAxis pAxis, const G4double pMin, const G4double pMax);
63 // Restrict the volume to between specif 63 // Restrict the volume to between specified min and max along the
64 // given axis. Cartesian axes only, pMin 64 // given axis. Cartesian axes only, pMin<=pMax.
65 65
66 G4double GetMaxXExtent() const; 66 G4double GetMaxXExtent() const;
67 // Return maximum x extent. 67 // Return maximum x extent.
68 G4double GetMaxYExtent() const; 68 G4double GetMaxYExtent() const;
69 // Return maximum y extent. 69 // Return maximum y extent.
70 G4double GetMaxZExtent() const; 70 G4double GetMaxZExtent() const;
71 // Return maximum z extent. 71 // Return maximum z extent.
72 72
73 G4double GetMinXExtent() const; 73 G4double GetMinXExtent() const;
74 // Return minimum x extent. 74 // Return minimum x extent.
75 G4double GetMinYExtent() const; 75 G4double GetMinYExtent() const;
76 // Return minimum y extent. 76 // Return minimum y extent.
77 G4double GetMinZExtent() const; 77 G4double GetMinZExtent() const;
78 // Return minimum z extent. 78 // Return minimum z extent.
79 79
80 G4double GetMaxExtent(const EAxis pAxis) c 80 G4double GetMaxExtent(const EAxis pAxis) const;
81 // Return maximum extent of volume along 81 // Return maximum extent of volume along specified axis.
82 G4double GetMinExtent(const EAxis pAxis) c 82 G4double GetMinExtent(const EAxis pAxis) const;
83 // Return minimum extent of volume along 83 // Return minimum extent of volume along specified axis.
84 84
85 G4bool IsXLimited() const; 85 G4bool IsXLimited() const;
86 // Return true if the x axis is limited. 86 // Return true if the x axis is limited.
87 G4bool IsYLimited() const; 87 G4bool IsYLimited() const;
88 // Return true if the y axis is limited. 88 // Return true if the y axis is limited.
89 G4bool IsZLimited() const; 89 G4bool IsZLimited() const;
90 // Return true if the z axis is limited. 90 // Return true if the z axis is limited.
91 91
92 G4bool IsLimited() const; 92 G4bool IsLimited() const;
93 // Return true if limited along any axis 93 // Return true if limited along any axis
94 G4bool IsLimited(const EAxis pAxis) const; 94 G4bool IsLimited(const EAxis pAxis) const;
95 // Return true if the specified axis is 95 // Return true if the specified axis is restricted/limited.
96 96
97 G4bool ClipToLimits(G4ThreeVector& pStart, 97 G4bool ClipToLimits(G4ThreeVector& pStart, G4ThreeVector& pEnd) const;
98 // Clip the line segment pStart->pEnd to 98 // Clip the line segment pStart->pEnd to the volume described by the
99 // current limits. Return true if the li 99 // current limits. Return true if the line remains after clipping,
100 // else false, and leave the vectors in 100 // else false, and leave the vectors in an undefined state.
101 101
102 G4bool Inside(const G4ThreeVector& pVec) c 102 G4bool Inside(const G4ThreeVector& pVec) const;
103 // Return true if the specified vector i 103 // Return true if the specified vector is inside/on boundaries of limits.
104 104
105 G4int OutCode(const G4ThreeVector& pVec) c 105 G4int OutCode(const G4ThreeVector& pVec) const;
106 // Calculate the `outcode' for the speci 106 // Calculate the `outcode' for the specified vector.
107 // Intended for use during clipping agai 107 // Intended for use during clipping against the limits
108 // The bits are set given the following 108 // The bits are set given the following conditions:
109 // 0 pVec.x()<fxAxisMin && IsXLim 109 // 0 pVec.x()<fxAxisMin && IsXLimited()
110 // 1 pVec.x()>fxAxisMax && IsXLim 110 // 1 pVec.x()>fxAxisMax && IsXLimited()
111 // 2 pVec.y()<fyAxisMin && IsYLim 111 // 2 pVec.y()<fyAxisMin && IsYLimited()
112 // 3 pVec.y()>fyAxisMax && IsYLim 112 // 3 pVec.y()>fyAxisMax && IsYLimited()
113 // 4 pVec.z()<fzAxisMin && IsZLim 113 // 4 pVec.z()<fzAxisMin && IsZLimited()
114 // 5 pVec.z()>fzAxisMax && IsZLim 114 // 5 pVec.z()>fzAxisMax && IsZLimited()
115 115
116 private: 116 private:
117 117
118 G4double fxAxisMin = -kInfinity, fxAxisMax 118 G4double fxAxisMin = -kInfinity, fxAxisMax = kInfinity;
119 G4double fyAxisMin = -kInfinity, fyAxisMax 119 G4double fyAxisMin = -kInfinity, fyAxisMax = kInfinity;
120 G4double fzAxisMin = -kInfinity, fzAxisMax 120 G4double fzAxisMin = -kInfinity, fzAxisMax = kInfinity;
121 }; 121 };
122 122
123 #include "G4VoxelLimits.icc" 123 #include "G4VoxelLimits.icc"
124 124
125 std::ostream& operator << (std::ostream& os, c 125 std::ostream& operator << (std::ostream& os, const G4VoxelLimits& pLim);
126 // Print the limits to the stream in the for 126 // Print the limits to the stream in the form:
127 // "{(xmin,xmax) (ymin,ymax) (zmin,zmax)}" 127 // "{(xmin,xmax) (ymin,ymax) (zmin,zmax)}"
128 // Replace (xmin,xmax) by (-,-) when not li 128 // Replace (xmin,xmax) by (-,-) when not limited.
129 129
130 #endif 130 #endif
131 131