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25 // 25 //
26 // G4VoxelLimits << 26 //
>> 27 // $Id: G4VoxelLimits.hh,v 1.9 2006/06/29 18:33:13 gunter Exp $
>> 28 // GEANT4 tag $Name: geant4-09-03-patch-02 $
>> 29 //
>> 30 // class G4VoxelLimits
27 // 31 //
28 // Class description: 32 // Class description:
29 // 33 //
30 // Represents limitation/restrictions of space 34 // Represents limitation/restrictions of space, where restrictions
31 // are only made perpendicular to the cartesia 35 // are only made perpendicular to the cartesian axes.
32 // 36 //
>> 37 //
33 // Member data: 38 // Member data:
34 // 39 //
35 // G4double fxAxisMin,fxAxisMax 40 // G4double fxAxisMin,fxAxisMax
36 // G4double fyAxisMin,fyAxisMax 41 // G4double fyAxisMin,fyAxisMax
37 // G4double fzAxisMin,fzAxisMax 42 // G4double fzAxisMin,fzAxisMax
38 // - The min and max values along each axis. + << 43 // - The min and max values along each axis. +-kInfinity if not restricted.
>> 44 //
>> 45 //
>> 46 // Notes:
>> 47 //
>> 48 // Beware no break statements after returns in switch(pAxis)s.
39 49
40 // 13.07.95, P.Kent - Initial version. << 50 // History:
>> 51 // 13.07.95 P.Kent Initial version.
41 // ------------------------------------------- 52 // --------------------------------------------------------------------
42 #ifndef G4VOXELLIMITS_HH 53 #ifndef G4VOXELLIMITS_HH
43 #define G4VOXELLIMITS_HH 1 << 54 #define G4VOXELLIMITS_HH
44 55
45 #include "G4Types.hh" 56 #include "G4Types.hh"
46 #include "geomdefs.hh" 57 #include "geomdefs.hh"
47 58
48 #include "G4ThreeVector.hh" 59 #include "G4ThreeVector.hh"
49 60
50 #include <assert.h> 61 #include <assert.h>
51 62
52 class G4VoxelLimits 63 class G4VoxelLimits
53 { 64 {
54 public: << 65 public: // with description
55 66
56 G4VoxelLimits() = default; << 67 G4VoxelLimits();
57 // Constructor - initialise to be unlimi 68 // Constructor - initialise to be unlimited. Volume unrestricted.
58 69
59 ~G4VoxelLimits() = default; << 70 ~G4VoxelLimits();
60 // Destructor. No actions. 71 // Destructor. No actions.
61 72
62 void AddLimit(const EAxis pAxis, const G4d << 73 void AddLimit(const EAxis pAxis, const G4double pMin,const G4double pMax);
63 // Restrict the volume to between specif 74 // Restrict the volume to between specified min and max along the
64 // given axis. Cartesian axes only, pMin 75 // given axis. Cartesian axes only, pMin<=pMax.
65 76
66 G4double GetMaxXExtent() const; 77 G4double GetMaxXExtent() const;
67 // Return maximum x extent. 78 // Return maximum x extent.
68 G4double GetMaxYExtent() const; 79 G4double GetMaxYExtent() const;
69 // Return maximum y extent. 80 // Return maximum y extent.
70 G4double GetMaxZExtent() const; 81 G4double GetMaxZExtent() const;
71 // Return maximum z extent. 82 // Return maximum z extent.
72 83
73 G4double GetMinXExtent() const; 84 G4double GetMinXExtent() const;
74 // Return minimum x extent. 85 // Return minimum x extent.
75 G4double GetMinYExtent() const; 86 G4double GetMinYExtent() const;
76 // Return minimum y extent. 87 // Return minimum y extent.
77 G4double GetMinZExtent() const; 88 G4double GetMinZExtent() const;
78 // Return minimum z extent. 89 // Return minimum z extent.
79 90
80 G4double GetMaxExtent(const EAxis pAxis) c 91 G4double GetMaxExtent(const EAxis pAxis) const;
81 // Return maximum extent of volume along 92 // Return maximum extent of volume along specified axis.
82 G4double GetMinExtent(const EAxis pAxis) c 93 G4double GetMinExtent(const EAxis pAxis) const;
83 // Return minimum extent of volume along 94 // Return minimum extent of volume along specified axis.
84 95
85 G4bool IsXLimited() const; 96 G4bool IsXLimited() const;
86 // Return true if the x axis is limited. 97 // Return true if the x axis is limited.
87 G4bool IsYLimited() const; 98 G4bool IsYLimited() const;
88 // Return true if the y axis is limited. 99 // Return true if the y axis is limited.
89 G4bool IsZLimited() const; 100 G4bool IsZLimited() const;
90 // Return true if the z axis is limited. 101 // Return true if the z axis is limited.
91 102
92 G4bool IsLimited() const; 103 G4bool IsLimited() const;
93 // Return true if limited along any axis 104 // Return true if limited along any axis
94 G4bool IsLimited(const EAxis pAxis) const; 105 G4bool IsLimited(const EAxis pAxis) const;
95 // Return true if the specified axis is 106 // Return true if the specified axis is restricted/limited.
96 107
97 G4bool ClipToLimits(G4ThreeVector& pStart, << 108 G4bool ClipToLimits(G4ThreeVector& pStart,G4ThreeVector& pEnd) const;
98 // Clip the line segment pStart->pEnd to 109 // Clip the line segment pStart->pEnd to the volume described by the
99 // current limits. Return true if the li 110 // current limits. Return true if the line remains after clipping,
100 // else false, and leave the vectors in 111 // else false, and leave the vectors in an undefined state.
101 112
102 G4bool Inside(const G4ThreeVector& pVec) c 113 G4bool Inside(const G4ThreeVector& pVec) const;
103 // Return true if the specified vector i 114 // Return true if the specified vector is inside/on boundaries of limits.
104 115
105 G4int OutCode(const G4ThreeVector& pVec) c 116 G4int OutCode(const G4ThreeVector& pVec) const;
106 // Calculate the `outcode' for the speci 117 // Calculate the `outcode' for the specified vector.
107 // Intended for use during clipping agai 118 // Intended for use during clipping against the limits
108 // The bits are set given the following 119 // The bits are set given the following conditions:
109 // 0 pVec.x()<fxAxisMin && IsXLim 120 // 0 pVec.x()<fxAxisMin && IsXLimited()
110 // 1 pVec.x()>fxAxisMax && IsXLim 121 // 1 pVec.x()>fxAxisMax && IsXLimited()
111 // 2 pVec.y()<fyAxisMin && IsYLim 122 // 2 pVec.y()<fyAxisMin && IsYLimited()
112 // 3 pVec.y()>fyAxisMax && IsYLim 123 // 3 pVec.y()>fyAxisMax && IsYLimited()
113 // 4 pVec.z()<fzAxisMin && IsZLim 124 // 4 pVec.z()<fzAxisMin && IsZLimited()
114 // 5 pVec.z()>fzAxisMax && IsZLim 125 // 5 pVec.z()>fzAxisMax && IsZLimited()
115 126
116 private: 127 private:
117 128
118 G4double fxAxisMin = -kInfinity, fxAxisMax << 129 G4double fxAxisMin,fxAxisMax;
119 G4double fyAxisMin = -kInfinity, fyAxisMax << 130 G4double fyAxisMin,fyAxisMax;
120 G4double fzAxisMin = -kInfinity, fzAxisMax << 131 G4double fzAxisMin,fzAxisMax;
121 }; 132 };
122 133
123 #include "G4VoxelLimits.icc" 134 #include "G4VoxelLimits.icc"
124 135
125 std::ostream& operator << (std::ostream& os, c 136 std::ostream& operator << (std::ostream& os, const G4VoxelLimits& pLim);
126 // Print the limits to the stream in the for 137 // Print the limits to the stream in the form:
127 // "{(xmin,xmax) (ymin,ymax) (zmin,zmax)}" 138 // "{(xmin,xmax) (ymin,ymax) (zmin,zmax)}"
128 // Replace (xmin,xmax) by (-,-) when not li 139 // Replace (xmin,xmax) by (-,-) when not limited.
129 140
130 #endif 141 #endif
131 142