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G4GenericTrap.hh
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27 // $Id: G4GenericTrap.hh 99781 2016-10-05 10:18:54Z gcosmo $
28 //
29 //
30 // --------------------------------------------------------------------
31 // GEANT 4 class header file
32 //
33 //
34 // G4GenericTrap
35 //
36 // Class description:
37 //
38 // G4GenericTrap is a solid which represents an arbitrary trapezoid with
39 // up to 8 vertices standing on two parallel planes perpendicular to Z axis.
40 //
41 // Parameters in the constructor:
42 // - name - solid name
43 // - halfZ - the solid half length in Z
44 // - vertices - the (x,y) coordinates of vertices:
45 // o first four points: vertices[i], i<4
46 // are the vertices sitting on the -halfZ plane;
47 // o last four points: vertices[i], i>=4
48 // are the vertices sitting on the +halfZ plane.
49 //
50 // The order of defining the vertices of the solid is the following:
51 // - point 0 is connected with points 1,3,4
52 // - point 1 is connected with points 0,2,5
53 // - point 2 is connected with points 1,3,6
54 // - point 3 is connected with points 0,2,7
55 // - point 4 is connected with points 0,5,7
56 // - point 5 is connected with points 1,4,6
57 // - point 6 is connected with points 2,5,7
58 // - point 7 is connected with points 3,4,6
59 // Points can be identical in order to create shapes with less than
60 // 8 vertices.
61 
62 // Authors:
63 // Tatiana Nikitina, CERN; Ivana Hrivnacova, IPN Orsay
64 // Adapted from Root Arb8 implementation, author Andrea Gheata, CERN
65 // -------------------------------------------------------------------
66 
67 #ifndef G4GenericTrap_HH
68 #define G4GenericTrap_HH
69 
70 #if defined(G4GEOM_USE_USOLIDS)
71 #define G4GEOM_USE_UGENERICTRAP 1
72 #endif
73 
74 #if defined(G4GEOM_USE_UGENERICTRAP)
75  #define G4UGenericTrap G4GenericTrap
76  #include "G4UGenericTrap.hh"
77 #else
78 
79 #include <vector>
80 
81 #include "G4TwoVector.hh"
82 #include "G4VSolid.hh"
83 #include "globals.hh"
84 
85 class G4VFacet;
86 class G4TessellatedSolid;
87 
88 class G4GenericTrap : public G4VSolid
89 {
90  public: // with description
91 
92  G4GenericTrap( const G4String& name, G4double halfZ,
93  const std::vector<G4TwoVector>& vertices );
94  // Constructor
95 
97  // Destructor
98 
99  // Accessors
100 
101  inline G4double GetZHalfLength() const;
102  inline G4int GetNofVertices() const;
103  inline G4TwoVector GetVertex(G4int index) const;
104  inline const std::vector<G4TwoVector>& GetVertices() const;
105  inline G4double GetTwistAngle(G4int index) const;
106  inline G4bool IsTwisted() const;
107  inline G4int GetVisSubdivisions() const;
108  inline void SetVisSubdivisions(G4int subdiv);
109 
110  // Solid methods
111 
112  EInside Inside(const G4ThreeVector& p) const;
113  G4ThreeVector SurfaceNormal(const G4ThreeVector& p) const;
115  const G4ThreeVector& v) const;
116  G4double DistanceToIn(const G4ThreeVector& p) const;
118  const G4ThreeVector& v,
119  const G4bool calcNorm = false,
120  G4bool *validNorm = 0,
121  G4ThreeVector *n = 0) const;
122  G4double DistanceToOut(const G4ThreeVector& p) const;
123  void Extent(G4ThreeVector& pMin, G4ThreeVector& pMax) const;
124  G4bool CalculateExtent(const EAxis pAxis,
125  const G4VoxelLimits& pVoxelLimit,
126  const G4AffineTransform& pTransform,
127  G4double& pmin, G4double& pmax) const;
128 
130 
131  G4VSolid* Clone() const;
132 
133  std::ostream& StreamInfo(std::ostream& os) const;
134 
136 
139 
140  // Visualisation functions
141 
142  G4Polyhedron* GetPolyhedron () const;
143  void DescribeYourselfTo(G4VGraphicsScene& scene) const;
144  G4VisExtent GetExtent() const;
146 
147  public: // without description
148 
149  G4GenericTrap(__void__&);
150  // Fake default constructor for usage restricted to direct object
151  // persistency for clients requiring preallocation of memory for
152  // persistifiable objects.
153 
154  G4GenericTrap(const G4GenericTrap& rhs);
155  G4GenericTrap& operator=(const G4GenericTrap& rhs);
156  // Copy constructor and assignment operator.
157 
158  private:
159 
160  // Internal methods
161 
162  inline void SetTwistAngle(G4int index, G4double twist);
163  G4bool ComputeIsTwisted() ;
164  G4bool CheckOrder(const std::vector<G4TwoVector>& vertices) const;
165  G4bool IsSegCrossing(const G4TwoVector& a, const G4TwoVector& b,
166  const G4TwoVector& c, const G4TwoVector& d) const;
167  G4bool IsSegCrossingZ(const G4TwoVector& a, const G4TwoVector& b,
168  const G4TwoVector& c, const G4TwoVector& d) const;
169  void ReorderVertices(std::vector<G4ThreeVector>& vertices) const;
170  void ComputeBBox();
171  inline G4ThreeVector GetMinimumBBox() const;
172  inline G4ThreeVector GetMaximumBBox() const;
173 
174  G4VFacet* MakeDownFacet(const std::vector<G4ThreeVector>& fromVertices,
175  G4int ind1, G4int ind2, G4int ind3) const;
176  G4VFacet* MakeUpFacet(const std::vector<G4ThreeVector>& fromVertices,
177  G4int ind1, G4int ind2, G4int ind3) const;
178  G4VFacet* MakeSideFacet(const G4ThreeVector& downVertex0,
179  const G4ThreeVector& downVertex1,
180  const G4ThreeVector& upVertex1,
181  const G4ThreeVector& upVertex0) const;
182  G4TessellatedSolid* CreateTessellatedSolid() const;
183 
184  EInside InsidePolygone(const G4ThreeVector& p,
185  const std::vector<G4TwoVector>& poly) const;
186  G4double DistToPlane(const G4ThreeVector& p,
187  const G4ThreeVector& v, const G4int ipl) const ;
188  G4double DistToTriangle(const G4ThreeVector& p,
189  const G4ThreeVector& v, const G4int ipl) const;
190  G4ThreeVector NormalToPlane(const G4ThreeVector& p,
191  const G4int ipl) const;
192  G4double SafetyToFace(const G4ThreeVector& p, const G4int iseg) const;
193  G4double GetFaceSurfaceArea(const G4ThreeVector& p0,
194  const G4ThreeVector& p1,
195  const G4ThreeVector& p2,
196  const G4ThreeVector& p3) const;
197  G4double GetFaceCubicVolume(const G4ThreeVector& p0,
198  const G4ThreeVector& p1,
199  const G4ThreeVector& p2,
200  const G4ThreeVector& p3) const;
201  protected:
202 
205 
206  private:
207 
208  // static data members
209 
210  static const G4int fgkNofVertices;
211  static const G4double fgkTolerance;
212 
213  G4double halfCarTolerance;
214 
215  // data members
216 
217  G4double fDz;
218  std::vector<G4TwoVector> fVertices;
219  G4bool fIsTwisted;
220  G4double fTwist[4];
221  G4TessellatedSolid* fTessellatedSolid;
222  G4ThreeVector fMinBBoxVector;
223  G4ThreeVector fMaxBBoxVector;
224  G4int fVisSubdivisions;
225 
226  enum ESide {kUndefined,kXY0,kXY1,kXY2,kXY3,kMZ,kPZ};
227  // Codes for faces (kXY[num]=num of lateral face,kMZ= minus z face etc)
228 
229  G4double fSurfaceArea;
230  G4double fCubicVolume;
231  // Surface and Volume
232 };
233 
234 #include "G4GenericTrap.icc"
235 
236 #endif
237 
238 #endif
const XML_Char * name
Definition: expat.h:151
G4Polyhedron * GetPolyhedron() const
G4int GetVisSubdivisions() const
G4GenericTrap(const G4String &name, G4double halfZ, const std::vector< G4TwoVector > &vertices)
G4VisExtent GetExtent() const
G4Polyhedron * fpPolyhedron
std::vector< ExP01TrackerHit * > a
Definition: ExP01Classes.hh:33
const char * p
Definition: xmltok.h:285
G4VSolid * Clone() const
G4bool CalculateExtent(const EAxis pAxis, const G4VoxelLimits &pVoxelLimit, const G4AffineTransform &pTransform, G4double &pmin, G4double &pmax) const
G4GeometryType GetEntityType() const
G4TwoVector GetVertex(G4int index) const
G4bool IsTwisted() const
G4double GetZHalfLength() const
int G4int
Definition: G4Types.hh:78
G4ThreeVector SurfaceNormal(const G4ThreeVector &p) const
G4double GetSurfaceArea()
tuple b
Definition: test.py:12
G4ThreeVector GetPointOnSurface() const
G4GenericTrap & operator=(const G4GenericTrap &rhs)
bool G4bool
Definition: G4Types.hh:79
std::ostream & StreamInfo(std::ostream &os) const
G4double GetTwistAngle(G4int index) const
G4double DistanceToOut(const G4ThreeVector &p, const G4ThreeVector &v, const G4bool calcNorm=false, G4bool *validNorm=0, G4ThreeVector *n=0) const
const G4int n
G4double GetCubicVolume()
void Extent(G4ThreeVector &pMin, G4ThreeVector &pMax) const
EInside Inside(const G4ThreeVector &p) const
tuple v
Definition: test.py:18
G4Polyhedron * CreatePolyhedron() const
G4int GetNofVertices() const
EInside
Definition: geomdefs.hh:58
EAxis
Definition: geomdefs.hh:54
double G4double
Definition: G4Types.hh:76
G4double DistanceToIn(const G4ThreeVector &p, const G4ThreeVector &v) const
tuple c
Definition: test.py:13
void SetVisSubdivisions(G4int subdiv)
const std::vector< G4TwoVector > & GetVertices() const
G4bool fRebuildPolyhedron
void DescribeYourselfTo(G4VGraphicsScene &scene) const