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25 // 25 //
>> 26 //
>> 27 // $Id$
>> 28 //
>> 29 //
>> 30 // --------------------------------------------------------------------
>> 31 // GEANT 4 class header file
>> 32 //
>> 33 //
26 // G4PolyPhiFace 34 // G4PolyPhiFace
27 // 35 //
28 // Class description: 36 // Class description:
29 // 37 //
30 // Definition of a face that bounds a polyco 38 // Definition of a face that bounds a polycone or polyhedra when
31 // it has a phi opening: 39 // it has a phi opening:
32 // 40 //
33 // G4PolyPhiFace( const G4ReduciblePolygon* << 41 // G4PolyPhiFace( const G4ReduciblePolygon *rz,
34 // G4double phi, 42 // G4double phi,
35 // G4double deltaPhi, 43 // G4double deltaPhi,
36 // G4double phiOther ) 44 // G4double phiOther )
37 // 45 //
38 // Specifically: a face that lies on a plane 46 // Specifically: a face that lies on a plane that passes through
39 // the z axis. It has boundaries that are st 47 // the z axis. It has boundaries that are straight lines of arbitrary
40 // length and direction, but with corners aw 48 // length and direction, but with corners aways on the same side of
41 // the z axis. 49 // the z axis.
42 50
43 // Author: David C. Williams (davidw@scipp.ucs << 51 // Author:
>> 52 // David C. Williams (davidw@scipp.ucsc.edu)
44 // ------------------------------------------- 53 // --------------------------------------------------------------------
45 #ifndef G4POLYPHIFACE_HH << 54
46 #define G4POLYPHIFACE_HH 1 << 55 #ifndef G4PolyPhiFace_hh
>> 56 #define G4PolyPhiFace_hh
47 57
48 #include "G4VCSGface.hh" 58 #include "G4VCSGface.hh"
49 #include "G4TwoVector.hh" 59 #include "G4TwoVector.hh"
50 60
51 class G4ReduciblePolygon; 61 class G4ReduciblePolygon;
52 62
53 struct G4PolyPhiFaceVertex 63 struct G4PolyPhiFaceVertex
54 { 64 {
55 G4double x, y, r, z; // position 65 G4double x, y, r, z; // position
56 G4double rNorm, 66 G4double rNorm,
57 zNorm; // r/z normal 67 zNorm; // r/z normal
58 G4ThreeVector norm3D; // 3D normal 68 G4ThreeVector norm3D; // 3D normal
59 69
60 // Needed for Triangulation Algorithm 70 // Needed for Triangulation Algorithm
61 // 71 //
62 G4bool ear; 72 G4bool ear;
63 G4PolyPhiFaceVertex *next,*prev; 73 G4PolyPhiFaceVertex *next,*prev;
64 }; 74 };
65 75
66 struct G4PolyPhiFaceEdge 76 struct G4PolyPhiFaceEdge
67 { 77 {
68 G4PolyPhiFaceEdge() = default; << 78 G4PolyPhiFaceEdge(): v0(0), v1(0), tr(.0), tz(0.), length(0.) {}
69 G4PolyPhiFaceVertex *v0{nullptr}, *v1{nullp << 79 G4PolyPhiFaceVertex *v0, *v1; // Corners
70 G4double tr{.0}, tz{0.}, // Unit vect << 80 G4double tr, tz, // Unit vector along edge
71 length{0.}; // Length of << 81 length; // Length of edge
72 G4ThreeVector norm3D; // 3D edge n 82 G4ThreeVector norm3D; // 3D edge normal vector
73 }; 83 };
74 84
75 class G4PolyPhiFace : public G4VCSGface 85 class G4PolyPhiFace : public G4VCSGface
76 { 86 {
77 87
78 public: << 88 public: // with description
79 89
80 G4PolyPhiFace( const G4ReduciblePolygon* r << 90 G4PolyPhiFace( const G4ReduciblePolygon *rz,
81 G4double phi, G4doubl 91 G4double phi, G4double deltaPhi, G4double phiOther );
82 // Constructor. 92 // Constructor.
83 // Points r,z should be supplied in cloc 93 // Points r,z should be supplied in clockwise order in r,z.
84 // For example: 94 // For example:
85 // [1]---------[2] 95 // [1]---------[2] ^ R
86 // | | 96 // | | |
87 // | | 97 // | | +--> z
88 // [0]---------[3] 98 // [0]---------[3]
89 99
90 ~G4PolyPhiFace() override; << 100 virtual ~G4PolyPhiFace();
91 // Destructor. Removes edges and corners 101 // Destructor. Removes edges and corners.
92 102
93 G4PolyPhiFace( const G4PolyPhiFace &source 103 G4PolyPhiFace( const G4PolyPhiFace &source );
94 G4PolyPhiFace& operator=( const G4PolyPhiF 104 G4PolyPhiFace& operator=( const G4PolyPhiFace &source );
95 // Copy constructor and assgnment operat 105 // Copy constructor and assgnment operator.
96 106
97 G4bool Intersect( const G4ThreeVector& p, << 107 G4bool Intersect( const G4ThreeVector &p, const G4ThreeVector &v,
98 G4bool outgoing, G 108 G4bool outgoing, G4double surfTolerance,
99 G4double& distance << 109 G4double &distance, G4double &distFromSurface,
100 G4ThreeVector& nor << 110 G4ThreeVector &normal, G4bool &allBehind );
101 111
102 G4double Distance( const G4ThreeVector& p, << 112 G4double Distance( const G4ThreeVector &p, G4bool outgoing );
103 113
104 EInside Inside( const G4ThreeVector& p, G4 << 114 EInside Inside( const G4ThreeVector &p, G4double tolerance,
105 G4double* bestDistan << 115 G4double *bestDistance );
106 116
107 G4ThreeVector Normal( const G4ThreeVector& << 117 G4ThreeVector Normal( const G4ThreeVector &p, G4double *bestDistance );
108 G4double* best <<
109 118
110 G4double Extent( const G4ThreeVector axis << 119 G4double Extent( const G4ThreeVector axis );
111 120
112 void CalculateExtent( const EAxis axis, 121 void CalculateExtent( const EAxis axis,
113 const G4VoxelLimits 122 const G4VoxelLimits &voxelLimit,
114 const G4AffineTransf << 123 const G4AffineTransform &tranform,
115 G4SolidExtentL << 124 G4SolidExtentList &extentList );
116 125
117 inline G4VCSGface* Clone() override; << 126 inline G4VCSGface *Clone();
118 // Allocates on the heap a clone of this 127 // Allocates on the heap a clone of this face.
119 128
120 G4double SurfaceArea() override; << 129 G4double SurfaceArea();
121 G4double SurfaceTriangle( const G4ThreeVec << 130 G4double SurfaceTriangle( G4ThreeVector p1, G4ThreeVector p2,
122 const G4ThreeVec << 131 G4ThreeVector p3, G4ThreeVector* p4);
123 G4ThreeVector GetPointOnFace() override; << 132 G4ThreeVector GetPointOnFace();
124 // Auxiliary methods for determination o 133 // Auxiliary methods for determination of points on surface.
125 134
>> 135 public: // without description
>> 136
126 G4PolyPhiFace(__void__&); 137 G4PolyPhiFace(__void__&);
127 // Fake default constructor for usage re 138 // Fake default constructor for usage restricted to direct object
128 // persistency for clients requiring pre 139 // persistency for clients requiring preallocation of memory for
129 // persistifiable objects. 140 // persistifiable objects.
130 141
131 void Diagnose( G4VSolid* solid ); << 142 void Diagnose( G4VSolid *solid );
132 // Throw an exception if something is fo 143 // Throw an exception if something is found inconsistent with
133 // the solid. For debugging purposes onl 144 // the solid. For debugging purposes only
134 145
135 protected: 146 protected:
136 147
137 G4bool InsideEdgesExact( G4double r, G4dou 148 G4bool InsideEdgesExact( G4double r, G4double z, G4double normSign,
138 const G4ThreeVect << 149 const G4ThreeVector &p, const G4ThreeVector &v );
139 // Decide if the point in r,z is inside 150 // Decide if the point in r,z is inside the edges of our face,
140 // **but** do so consistently with other 151 // **but** do so consistently with other faces.
141 152
142 G4bool InsideEdges( G4double r, G4double z 153 G4bool InsideEdges( G4double r, G4double z );
143 G4bool InsideEdges( G4double r, G4double z << 154 G4bool InsideEdges( G4double r, G4double z, G4double *distRZ2,
144 G4PolyPhiFaceVertex** << 155 G4PolyPhiFaceVertex **base3Dnorm=0,
145 G4ThreeVector** head3D << 156 G4ThreeVector **head3Dnorm=0 );
146 // Decide if the point in r,z is inside 157 // Decide if the point in r,z is inside the edges of our face.
147 158
148 inline G4double ExactZOrder( G4double z, 159 inline G4double ExactZOrder( G4double z,
149 G4double qx, 160 G4double qx, G4double qy, G4double qz,
150 const G4ThreeVector << 161 const G4ThreeVector &v,
151 G4double norm 162 G4double normSign,
152 const G4PolyPhiFace << 163 const G4PolyPhiFaceVertex *vert ) const;
153 // Decide precisely whether a trajectory 164 // Decide precisely whether a trajectory passes to the left, right,
154 // or exactly passes through the z posit 165 // or exactly passes through the z position of a vertex point in face.
155 166
156 void CopyStuff( const G4PolyPhiFace& sourc << 167 void CopyStuff( const G4PolyPhiFace &source );
>> 168
>> 169 protected:
157 170
158 // Functions used for Triangulation in Cas 171 // Functions used for Triangulation in Case of generic Polygone.
159 // The triangulation is used for GetPointO 172 // The triangulation is used for GetPointOnFace()
160 173
161 G4double Area2( const G4TwoVector& a, cons << 174 G4double Area2( G4TwoVector a, G4TwoVector b, G4TwoVector c);
162 // Calculation of 2*Area of Triangle wit 175 // Calculation of 2*Area of Triangle with Sign
163 176
164 G4bool Left( const G4TwoVector& a, const G << 177 G4bool Left( G4TwoVector a, G4TwoVector b, G4TwoVector c );
165 G4bool LeftOn( const G4TwoVector& a, const << 178 G4bool LeftOn( G4TwoVector a, G4TwoVector b, G4TwoVector c );
166 G4bool Collinear( const G4TwoVector& a, co << 179 G4bool Collinear( G4TwoVector a, G4TwoVector b, G4TwoVector c );
167 // Boolean functions for sign of Surface 180 // Boolean functions for sign of Surface
168 181
169 G4bool IntersectProp( const G4TwoVector& a << 182 G4bool IntersectProp( G4TwoVector a, G4TwoVector b,
170 const G4TwoVector& c << 183 G4TwoVector c, G4TwoVector d );
171 // Boolean function for finding proper i 184 // Boolean function for finding proper intersection of two
172 // line segments (a,b) and (c,d). 185 // line segments (a,b) and (c,d).
173 186
174 G4bool Between( const G4TwoVector& a, cons << 187 G4bool Between( G4TwoVector a, G4TwoVector b, G4TwoVector c );
175 // Boolean function for determining if p 188 // Boolean function for determining if point c is between a and b
176 // where the three points (a,b,c) are on 189 // where the three points (a,b,c) are on the same line.
177 190
178 G4bool Intersect( const G4TwoVector& a, co << 191 G4bool Intersect( G4TwoVector a, G4TwoVector b,
179 const G4TwoVector& c, co << 192 G4TwoVector c, G4TwoVector d );
180 // Boolean function for finding proper i 193 // Boolean function for finding proper intersection or not
181 // of two line segments (a,b) and (c,d). 194 // of two line segments (a,b) and (c,d).
182 195
183 G4bool Diagonalie( G4PolyPhiFaceVertex* a, << 196 G4bool Diagonalie( G4PolyPhiFaceVertex *a, G4PolyPhiFaceVertex *b );
184 // Boolean Diagonalie help to determine 197 // Boolean Diagonalie help to determine if diagonal s
185 // of segment (a,b) is convex or reflex. 198 // of segment (a,b) is convex or reflex.
186 199
187 G4bool InCone( G4PolyPhiFaceVertex *a, G4P 200 G4bool InCone( G4PolyPhiFaceVertex *a, G4PolyPhiFaceVertex *b );
188 // Boolean function for determining if b 201 // Boolean function for determining if b is inside the cone (a0,a,a1)
189 // where a is the center of the cone. 202 // where a is the center of the cone.
190 203
191 G4bool Diagonal( G4PolyPhiFaceVertex* a, G << 204 G4bool Diagonal( G4PolyPhiFaceVertex *a, G4PolyPhiFaceVertex *b );
192 // Boolean function for determining if D 205 // Boolean function for determining if Diagonal is possible
193 // inside Polycone or PolyHedra. 206 // inside Polycone or PolyHedra.
194 207
195 void EarInit(); 208 void EarInit();
196 // Initialisation for Triangulisation by 209 // Initialisation for Triangulisation by ear tips.
197 // For details see "Computational Geomet 210 // For details see "Computational Geometry in C" by Joseph O'Rourke.
198 211
199 void Triangulate(); 212 void Triangulate();
200 // Triangularisation by ear tips for Pol 213 // Triangularisation by ear tips for Polycone or Polyhedra.
201 // For details see "Computational Geomet 214 // For details see "Computational Geometry in C" by Joseph O'Rourke.
202 // NOTE: a copy of the shape is made and 215 // NOTE: a copy of the shape is made and this copy is reordered in
203 // order to have a list of triangl 216 // order to have a list of triangles. This list is used by the
204 // method GetPointOnFace(). 217 // method GetPointOnFace().
205 218
206 protected: 219 protected:
207 220
208 G4int numEdges = 0; // Number of edges << 221 G4int numEdges; // Number of edges
209 G4PolyPhiFaceEdge* edges = nullptr; << 222 G4PolyPhiFaceEdge *edges; // The edges of the face
210 G4PolyPhiFaceVertex* corners = nullptr; << 223 G4PolyPhiFaceVertex *corners; // And the corners
211 G4ThreeVector normal; // Normal uni << 224 G4ThreeVector normal; // Normal unit vector
212 G4ThreeVector radial; // Unit vecto << 225 G4ThreeVector radial; // Unit vector along radial direction
213 G4ThreeVector surface; // Point on s << 226 G4ThreeVector surface; // Point on surface
214 G4ThreeVector surface_point; // Auxiliary << 227 G4ThreeVector surface_point; // Auxiliary point on surface used for
215 // method Get << 228 // method GetPointOnFace()
216 G4double rMin, rMax, // Extent in r << 229 G4double rMin, rMax, // Extent in r
217 zMin, zMax; // Extent in z << 230 zMin, zMax; // Extent in z
218 G4bool allBehind = false; // True if the p << 231 G4bool allBehind; // True if the polycone/polyhedra
219 // is behind the << 232 // is behind the place of this face
220 G4double kCarTolerance; // Surface th << 233 G4double kCarTolerance;// Surface thickness
221 G4double fSurfaceArea = 0.0; // Surface Ar << 234 G4double fSurfaceArea; // Surface Area of PolyPhiFace
222 G4PolyPhiFaceVertex* triangles = nullptr; << 235 G4PolyPhiFaceVertex *triangles; // Auxiliary pointer to 'corners' used for
223 // Auxiliary pointer to 'corners' used f << 236 // triangulation. Copy structure, changing
224 // Copy structure, changing the structur << 237 // the structure of 'corners' (ear removal)
225 }; 238 };
226 239
227 #include "G4PolyPhiFace.icc" 240 #include "G4PolyPhiFace.icc"
228 241
229 #endif 242 #endif
230 243