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25 // 25 //
26 // G4SolidExtentList implementation; a list of <<
27 // 26 //
28 // Author: David C. Williams (davidw@scipp.ucs << 27 // $Id: G4SolidExtentList.cc,v 1.5 2007/05/11 13:54:29 gcosmo Exp $
>> 28 // GEANT4 tag $Name: geant4-09-00 $
>> 29 //
>> 30 //
>> 31 // --------------------------------------------------------------------
>> 32 // GEANT 4 class source file
>> 33 //
>> 34 //
>> 35 // G4SolidExtentList.cc
>> 36 //
>> 37 // Implementation of a list of (voxel) extents along one axis
>> 38 //
29 // ------------------------------------------- 39 // --------------------------------------------------------------------
30 40
31 #include "G4SolidExtentList.hh" 41 #include "G4SolidExtentList.hh"
32 #include "G4VoxelLimits.hh" 42 #include "G4VoxelLimits.hh"
33 #include "G4GeometryTolerance.hh" 43 #include "G4GeometryTolerance.hh"
34 44
>> 45
>> 46 //
35 // Constructor (default) 47 // Constructor (default)
36 // 48 //
37 G4SolidExtentList::G4SolidExtentList() 49 G4SolidExtentList::G4SolidExtentList()
38 { 50 {
39 axis = kZAxis; 51 axis = kZAxis;
40 minLimit = -INT_MAX/2; << 52 limited = false;
41 maxLimit = INT_MAX/2; << 53 minLimit = -DBL_MAX;
>> 54 maxLimit = +DBL_MAX;
42 } 55 }
43 56
>> 57
>> 58 //
44 // Constructor (limited case) 59 // Constructor (limited case)
45 // 60 //
46 G4SolidExtentList::G4SolidExtentList( const EA 61 G4SolidExtentList::G4SolidExtentList( const EAxis targetAxis,
47 const G4 62 const G4VoxelLimits &voxelLimits )
48 { 63 {
49 axis = targetAxis; 64 axis = targetAxis;
50 65
51 limited = voxelLimits.IsLimited( axis ); 66 limited = voxelLimits.IsLimited( axis );
52 if (limited) 67 if (limited)
53 { 68 {
54 minLimit = voxelLimits.GetMinExtent( axis 69 minLimit = voxelLimits.GetMinExtent( axis );
55 maxLimit = voxelLimits.GetMaxExtent( axis 70 maxLimit = voxelLimits.GetMaxExtent( axis );
56 } 71 }
57 else 72 else
58 { 73 {
59 minLimit = -INT_MAX/2; << 74 minLimit = -DBL_MAX;
60 maxLimit = INT_MAX/2; << 75 maxLimit = +DBL_MAX;
61 } 76 }
62 } 77 }
63 78
>> 79
>> 80 //
64 // Destructor 81 // Destructor
65 // 82 //
66 G4SolidExtentList::~G4SolidExtentList() = defa << 83 G4SolidExtentList::~G4SolidExtentList()
>> 84 {
>> 85 }
>> 86
67 87
>> 88 //
68 // AddSurface 89 // AddSurface
69 // 90 //
70 // 91 //
71 void G4SolidExtentList::AddSurface( const G4Cl << 92 void G4SolidExtentList::AddSurface( const G4ClippablePolygon &surface )
72 { 93 {
73 // 94 //
74 // Keep track of four surfaces 95 // Keep track of four surfaces
75 // 96 //
76 G4double smin=.0, smax=0.; << 97 G4double min, max;
77 98
78 surface.GetExtent( axis, smin, smax ); << 99 surface.GetExtent( axis, min, max );
79 100
80 if (smin > maxLimit) << 101 if (min > maxLimit)
81 { 102 {
82 // 103 //
83 // Nearest surface beyond maximum limit 104 // Nearest surface beyond maximum limit
84 // 105 //
85 if (surface.InFrontOf(minAbove,axis)) minA 106 if (surface.InFrontOf(minAbove,axis)) minAbove = surface;
86 } 107 }
87 else if (smax < minLimit) << 108 else if (max < minLimit)
88 { 109 {
89 // 110 //
90 // Nearest surface below minimum limit 111 // Nearest surface below minimum limit
91 // 112 //
92 if (surface.BehindOf(maxBelow,axis)) maxBe 113 if (surface.BehindOf(maxBelow,axis)) maxBelow = surface;
93 } 114 }
94 else 115 else
95 { 116 {
96 // 117 //
97 // Max and min surfaces inside 118 // Max and min surfaces inside
98 // 119 //
99 if (surface.BehindOf(maxSurface,axis)) max 120 if (surface.BehindOf(maxSurface,axis)) maxSurface = surface;
100 if (surface.InFrontOf(minSurface,axis)) mi 121 if (surface.InFrontOf(minSurface,axis)) minSurface = surface;
101 } 122 }
102 } 123 }
103 124
>> 125
>> 126
>> 127 //
104 // GetExtent 128 // GetExtent
105 // 129 //
106 // Return extent after processing all surfaces 130 // Return extent after processing all surfaces
107 // 131 //
108 G4bool G4SolidExtentList::GetExtent( G4double& << 132 G4bool G4SolidExtentList::GetExtent( G4double &min, G4double &max ) const
109 { 133 {
110 G4double kCarTolerance = G4GeometryTolerance 134 G4double kCarTolerance = G4GeometryTolerance::GetInstance()
111 ->GetSurfaceToleran 135 ->GetSurfaceTolerance();
112 // 136 //
113 // Did we have any surfaces within the limit 137 // Did we have any surfaces within the limits?
114 // 138 //
115 if (minSurface.Empty()) 139 if (minSurface.Empty())
116 { 140 {
117 // 141 //
118 // Nothing! Do we have anything above? 142 // Nothing! Do we have anything above?
119 // 143 //
120 if (minAbove.Empty()) return false; 144 if (minAbove.Empty()) return false;
121 145
122 // 146 //
123 // Yup. Is it facing inwards? 147 // Yup. Is it facing inwards?
124 // 148 //
125 if (minAbove.GetNormal().operator()(axis) 149 if (minAbove.GetNormal().operator()(axis) < 0) return false;
126 150
127 // 151 //
128 // No. We must be entirely within the soli 152 // No. We must be entirely within the solid
129 // 153 //
130 emax = maxLimit + kCarTolerance; << 154 max = maxLimit + kCarTolerance;
131 emin = minLimit - kCarTolerance; << 155 min = minLimit - kCarTolerance;
132 return true; 156 return true;
133 } 157 }
134 158
135 // 159 //
136 // Check max surface 160 // Check max surface
137 // 161 //
138 if (maxSurface.GetNormal().operator()(axis) 162 if (maxSurface.GetNormal().operator()(axis) < 0)
139 { 163 {
140 // 164 //
141 // Inward facing: max limit must be embedd 165 // Inward facing: max limit must be embedded within solid
142 // 166 //
143 emax = maxLimit + kCarTolerance; << 167 max = maxLimit + kCarTolerance;
144 } 168 }
145 else 169 else
146 { 170 {
147 G4double sMin=0., sMax=0.; << 171 G4double sMin, sMax;
148 maxSurface.GetExtent( axis, sMin, sMax ); 172 maxSurface.GetExtent( axis, sMin, sMax );
149 emax = ( (sMax > maxLimit) ? maxLimit : sM << 173 max = ( (sMax > maxLimit) ? maxLimit : sMax ) + kCarTolerance;
150 } 174 }
151 175
152 // 176 //
153 // Check min surface 177 // Check min surface
154 // 178 //
155 if (minSurface.GetNormal().operator()(axis) 179 if (minSurface.GetNormal().operator()(axis) > 0)
156 { 180 {
157 // 181 //
158 // Inward facing: max limit must be embedd 182 // Inward facing: max limit must be embedded within solid
159 // 183 //
160 emin = minLimit - kCarTolerance; << 184 min = minLimit - kCarTolerance;
161 } 185 }
162 else 186 else
163 { 187 {
164 G4double sMin=0., sMax=0.; << 188 G4double sMin, sMax;
165 minSurface.GetExtent( axis, sMin, sMax ); 189 minSurface.GetExtent( axis, sMin, sMax );
166 emin = ( (sMin < minLimit) ? minLimit : sM << 190 min = ( (sMin < minLimit) ? minLimit : sMin ) - kCarTolerance;
167 } 191 }
168 192
169 return true; 193 return true;
170 } 194 }
171 195
172 196