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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 1.4 2006/06/29 18:48:55 gunter Exp $
>> 28 // GEANT4 tag $Name: geant4-08-02 $
>> 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" <<
34 43
>> 44
>> 45 //
35 // Constructor (default) 46 // Constructor (default)
36 // 47 //
37 G4SolidExtentList::G4SolidExtentList() 48 G4SolidExtentList::G4SolidExtentList()
38 { 49 {
39 axis = kZAxis; 50 axis = kZAxis;
40 minLimit = -INT_MAX/2; << 51 limited = false;
41 maxLimit = INT_MAX/2; << 52 minLimit = -DBL_MAX;
>> 53 maxLimit = +DBL_MAX;
42 } 54 }
43 55
>> 56
>> 57 //
44 // Constructor (limited case) 58 // Constructor (limited case)
45 // 59 //
46 G4SolidExtentList::G4SolidExtentList( const EA 60 G4SolidExtentList::G4SolidExtentList( const EAxis targetAxis,
47 const G4 61 const G4VoxelLimits &voxelLimits )
48 { 62 {
49 axis = targetAxis; 63 axis = targetAxis;
50 64
51 limited = voxelLimits.IsLimited( axis ); 65 limited = voxelLimits.IsLimited( axis );
52 if (limited) 66 if (limited)
53 { 67 {
54 minLimit = voxelLimits.GetMinExtent( axis 68 minLimit = voxelLimits.GetMinExtent( axis );
55 maxLimit = voxelLimits.GetMaxExtent( axis 69 maxLimit = voxelLimits.GetMaxExtent( axis );
56 } 70 }
57 else 71 else
58 { 72 {
59 minLimit = -INT_MAX/2; << 73 minLimit = -DBL_MAX;
60 maxLimit = INT_MAX/2; << 74 maxLimit = +DBL_MAX;
61 } 75 }
62 } 76 }
63 77
>> 78
>> 79 //
64 // Destructor 80 // Destructor
65 // 81 //
66 G4SolidExtentList::~G4SolidExtentList() = defa << 82 G4SolidExtentList::~G4SolidExtentList()
>> 83 {
>> 84 }
>> 85
67 86
>> 87 //
68 // AddSurface 88 // AddSurface
69 // 89 //
70 // 90 //
71 void G4SolidExtentList::AddSurface( const G4Cl << 91 void G4SolidExtentList::AddSurface( const G4ClippablePolygon &surface )
72 { 92 {
73 // 93 //
74 // Keep track of four surfaces 94 // Keep track of four surfaces
75 // 95 //
76 G4double smin=.0, smax=0.; << 96 G4double min, max;
77 97
78 surface.GetExtent( axis, smin, smax ); << 98 surface.GetExtent( axis, min, max );
79 99
80 if (smin > maxLimit) << 100 if (min > maxLimit)
81 { 101 {
82 // 102 //
83 // Nearest surface beyond maximum limit 103 // Nearest surface beyond maximum limit
84 // 104 //
85 if (surface.InFrontOf(minAbove,axis)) minA 105 if (surface.InFrontOf(minAbove,axis)) minAbove = surface;
86 } 106 }
87 else if (smax < minLimit) << 107 else if (max < minLimit)
88 { 108 {
89 // 109 //
90 // Nearest surface below minimum limit 110 // Nearest surface below minimum limit
91 // 111 //
92 if (surface.BehindOf(maxBelow,axis)) maxBe 112 if (surface.BehindOf(maxBelow,axis)) maxBelow = surface;
93 } 113 }
94 else 114 else
95 { 115 {
96 // 116 //
97 // Max and min surfaces inside 117 // Max and min surfaces inside
98 // 118 //
99 if (surface.BehindOf(maxSurface,axis)) max 119 if (surface.BehindOf(maxSurface,axis)) maxSurface = surface;
100 if (surface.InFrontOf(minSurface,axis)) mi 120 if (surface.InFrontOf(minSurface,axis)) minSurface = surface;
101 } 121 }
102 } 122 }
103 123
>> 124
>> 125
>> 126 //
104 // GetExtent 127 // GetExtent
105 // 128 //
106 // Return extent after processing all surfaces 129 // Return extent after processing all surfaces
107 // 130 //
108 G4bool G4SolidExtentList::GetExtent( G4double& << 131 G4bool G4SolidExtentList::GetExtent( G4double &min, G4double &max ) const
109 { 132 {
110 G4double kCarTolerance = G4GeometryTolerance <<
111 ->GetSurfaceToleran <<
112 // 133 //
113 // Did we have any surfaces within the limit 134 // Did we have any surfaces within the limits?
114 // 135 //
115 if (minSurface.Empty()) 136 if (minSurface.Empty())
116 { 137 {
117 // 138 //
118 // Nothing! Do we have anything above? 139 // Nothing! Do we have anything above?
119 // 140 //
120 if (minAbove.Empty()) return false; 141 if (minAbove.Empty()) return false;
121 142
122 // 143 //
123 // Yup. Is it facing inwards? 144 // Yup. Is it facing inwards?
124 // 145 //
125 if (minAbove.GetNormal().operator()(axis) 146 if (minAbove.GetNormal().operator()(axis) < 0) return false;
126 147
127 // 148 //
128 // No. We must be entirely within the soli 149 // No. We must be entirely within the solid
129 // 150 //
130 emax = maxLimit + kCarTolerance; << 151 max = maxLimit + kCarTolerance;
131 emin = minLimit - kCarTolerance; << 152 min = minLimit - kCarTolerance;
132 return true; 153 return true;
133 } 154 }
134 155
135 // 156 //
136 // Check max surface 157 // Check max surface
137 // 158 //
138 if (maxSurface.GetNormal().operator()(axis) 159 if (maxSurface.GetNormal().operator()(axis) < 0)
139 { 160 {
140 // 161 //
141 // Inward facing: max limit must be embedd 162 // Inward facing: max limit must be embedded within solid
142 // 163 //
143 emax = maxLimit + kCarTolerance; << 164 max = maxLimit + kCarTolerance;
144 } 165 }
145 else 166 else
146 { 167 {
147 G4double sMin=0., sMax=0.; << 168 G4double sMin, sMax;
148 maxSurface.GetExtent( axis, sMin, sMax ); 169 maxSurface.GetExtent( axis, sMin, sMax );
149 emax = ( (sMax > maxLimit) ? maxLimit : sM << 170 max = ( (sMax > maxLimit) ? maxLimit : sMax ) + kCarTolerance;
150 } 171 }
151 172
152 // 173 //
153 // Check min surface 174 // Check min surface
154 // 175 //
155 if (minSurface.GetNormal().operator()(axis) 176 if (minSurface.GetNormal().operator()(axis) > 0)
156 { 177 {
157 // 178 //
158 // Inward facing: max limit must be embedd 179 // Inward facing: max limit must be embedded within solid
159 // 180 //
160 emin = minLimit - kCarTolerance; << 181 min = minLimit - kCarTolerance;
161 } 182 }
162 else 183 else
163 { 184 {
164 G4double sMin=0., sMax=0.; << 185 G4double sMin, sMax;
165 minSurface.GetExtent( axis, sMin, sMax ); 186 minSurface.GetExtent( axis, sMin, sMax );
166 emin = ( (sMin < minLimit) ? minLimit : sM << 187 min = ( (sMin < minLimit) ? minLimit : sMin ) - kCarTolerance;
167 } 188 }
168 189
169 return true; 190 return true;
170 } 191 }
171 192
172 193