// @(#)root/geom:$Id: TGeoArb8.h 24419 2008-06-20 13:40:38Z brun $ // Author: Andrei Gheata 24/10/01 /************************************************************************* * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. * * All rights reserved. * * * * For the licensing terms see $ROOTSYS/LICENSE. * * For the list of contributors see $ROOTSYS/README/CREDITS. * *************************************************************************/ #ifndef ROOT_TGeoArb8 #define ROOT_TGeoArb8 #ifndef ROOT_TGeoBBox #include "TGeoBBox.h" #endif //////////////////////////////////////////////////////////////////////////// // // // TGeoArb8 - a arbitrary trapezoid with less than 8 vertices standing on // // two paralel planes perpendicular to Z axis. Parameters : // // - dz - half length in Z; // // - xy[8][2] - vector of (x,y) coordinates of vertices // // - first four points (xy[i][j], i<4, j<2) are the (x,y) // // coordinates of the vertices sitting on the -dz plane; // // - last four points (xy[i][j], i>=4, j<2) are the (x,y) // // coordinates of the vertices sitting on the +dz plane; // // The order of defining the vertices of an arb8 is the following : // // - point 0 is connected with points 1,3,4 // // - point 1 is connected with points 0,2,5 // // - point 2 is connected with points 1,3,6 // // - point 3 is connected with points 0,2,7 // // - point 4 is connected with points 0,5,7 // // - point 5 is connected with points 1,4,6 // // - point 6 is connected with points 2,5,7 // // - point 7 is connected with points 3,4,6 // // Points can be identical in order to create shapes with less than // // 8 vertices. // // // //////////////////////////////////////////////////////////////////////////// class TGeoArb8 : public TGeoBBox { protected: enum EGeoArb8Type { // kArb8Trd1 = BIT(25), // trd1 type // kArb8Trd2 = BIT(26), // trd2 type kArb8Trap = BIT(27), // planar surface trapezoid kArb8Tra = BIT(28) // general twisted trapezoid }; // data members Double_t fDz; // half length in Z Double_t *fTwist; //! [4] tangents of twist angles Double_t fXY[8][2]; // list of vertices TGeoArb8(const TGeoArb8&); TGeoArb8& operator=(const TGeoArb8&); public: // constructors TGeoArb8(); TGeoArb8(Double_t dz, Double_t *vertices=0); TGeoArb8(const char *name, Double_t dz, Double_t *vertices=0); // destructor virtual ~TGeoArb8(); // methods virtual Double_t Capacity() const; virtual void ComputeBBox(); virtual void ComputeNormal(Double_t *point, Double_t *dir, Double_t *norm); void ComputeTwist(); virtual Bool_t Contains(Double_t *point) const; Double_t DistToPlane(Double_t *point, Double_t *dir, Int_t ipl, Bool_t in) const; virtual Double_t DistFromInside(Double_t *point, Double_t *dir, Int_t iact=1, Double_t step=TGeoShape::Big(), Double_t *safe=0) const; virtual Double_t DistFromOutside(Double_t *point, Double_t *dir, Int_t iact=1, Double_t step=TGeoShape::Big(), Double_t *safe=0) const; virtual TGeoVolume *Divide(TGeoVolume *voldiv, const char *divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step); virtual Double_t GetAxisRange(Int_t iaxis, Double_t &xlo, Double_t &xhi) const; virtual void GetBoundingCylinder(Double_t *param) const; virtual Int_t GetByteCount() const {return 100;} virtual Bool_t GetPointsOnFacet(Int_t /*index*/, Int_t /*npoints*/, Double_t * /*array*/) const; Double_t GetDz() const {return fDz;} virtual Int_t GetFittingBox(const TGeoBBox *parambox, TGeoMatrix *mat, Double_t &dx, Double_t &dy, Double_t &dz) const; virtual TGeoShape *GetMakeRuntimeShape(TGeoShape * /*mother*/, TGeoMatrix * /*mat*/) const {return 0;} static void GetPlaneNormal(Double_t *p1, Double_t *p2, Double_t *p3, Double_t *norm); Double_t *GetVertices() {return &fXY[0][0];} Double_t GetTwist(Int_t iseg) const; virtual Bool_t IsCylType() const {return kFALSE;} static Bool_t IsSamePoint(Double_t *p1, Double_t *p2) {return ((p1[0]==p2[0]) && (p1[1]==p2[1]))?kTRUE:kFALSE;} static Bool_t InsidePolygon(Double_t x, Double_t y, Double_t *pts); virtual void InspectShape() const; Bool_t IsTwisted() const {return (fTwist==0)?kFALSE:kTRUE;} Double_t SafetyToFace(Double_t *point, Int_t iseg, Bool_t in) const; virtual Double_t Safety(Double_t *point, Bool_t in=kTRUE) const; virtual void SavePrimitive(ostream &out, Option_t *option = ""); void SetPlaneVertices(Double_t zpl, Double_t *vertices) const; virtual void SetVertex(Int_t vnum, Double_t x, Double_t y); virtual void SetDimensions(Double_t *param); void SetDz(Double_t dz) {fDz = dz;} virtual void SetPoints(Double_t *points) const; virtual void SetPoints(Float_t *points) const; virtual void Sizeof3D() const; ClassDef(TGeoArb8, 1) // arbitrary trapezoid with 8 vertices }; //////////////////////////////////////////////////////////////////////////// // // // TGeoTrap // // // // Trap is a general trapezoid, i.e. one for which the faces perpendicular// // to z are trapezia and their centres are not the same x, y. It has 11 // // parameters: the half length in z, the polar angles from the centre of // // the face at low z to that at high z, H1 the half length in y at low z, // // LB1 the half length in x at low z and y low edge, LB2 the half length // // in x at low z and y high edge, TH1 the angle w.r.t. the y axis from the// // centre of low y edge to the centre of the high y edge, and H2, LB2, // // LH2, TH2, the corresponding quantities at high z. // // // //////////////////////////////////////////////////////////////////////////// class TGeoTrap : public TGeoArb8 { protected: // data members Double_t fTheta; // theta angle Double_t fPhi; // phi angle Double_t fH1; // half length in y at low z Double_t fBl1; // half length in x at low z and y low edge Double_t fTl1; // half length in x at low z and y high edge Double_t fAlpha1;// angle between centers of x edges an y axis at low z Double_t fH2; // half length in y at high z Double_t fBl2; // half length in x at high z and y low edge Double_t fTl2; // half length in x at high z and y high edge Double_t fAlpha2;// angle between centers of x edges an y axis at low z public: // constructors TGeoTrap(); TGeoTrap(Double_t dz, Double_t theta, Double_t phi); TGeoTrap(Double_t dz, Double_t theta, Double_t phi, Double_t h1, Double_t bl1, Double_t tl1, Double_t alpha1, Double_t h2, Double_t bl2, Double_t tl2, Double_t alpha2); TGeoTrap(const char *name, Double_t dz, Double_t theta, Double_t phi, Double_t h1, Double_t bl1, Double_t tl1, Double_t alpha1, Double_t h2, Double_t bl2, Double_t tl2, Double_t alpha2); // destructor virtual ~TGeoTrap(); virtual Double_t DistFromInside(Double_t *point, Double_t *dir, Int_t iact=1, Double_t step=TGeoShape::Big(), Double_t *safe=0) const; virtual Double_t DistFromOutside(Double_t *point, Double_t *dir, Int_t iact=1, Double_t step=TGeoShape::Big(), Double_t *safe=0) const; virtual TGeoVolume *Divide(TGeoVolume *voldiv, const char *divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step); Double_t GetTheta() const {return fTheta;} Double_t GetPhi() const {return fPhi;} Double_t GetH1() const {return fH1;} Double_t GetBl1() const {return fBl1;} Double_t GetTl1() const {return fTl1;} Double_t GetAlpha1() const {return fAlpha1;} Double_t GetH2() const {return fH2;} Double_t GetBl2() const {return fBl2;} Double_t GetTl2() const {return fTl2;} Double_t GetAlpha2() const {return fAlpha2;} virtual TGeoShape *GetMakeRuntimeShape(TGeoShape *mother, TGeoMatrix *mat) const; virtual void SetDimensions(Double_t *param); virtual Double_t Safety(Double_t *point, Bool_t in=kTRUE) const; virtual void SavePrimitive(ostream &out, Option_t *option = ""); ClassDef(TGeoTrap, 1) // G3 TRAP shape }; //////////////////////////////////////////////////////////////////////////// // // // TGeoGtra // // // // Gtra is a twisted general trapezoid, i.e. one for which the faces perpendicular// // to z are trapezia and their centres are not the same x, y. It has 12 // // parameters: the half length in z, the polar angles from the centre of // // the face at low z to that at high z, the twist angle, H1 the half length in y at low z, // // LB1 the half length in x at low z and y low edge, LB2 the half length // // in x at low z and y high edge, TH1 the angle w.r.t. the y axis from the// // centre of low y edge to the centre of the high y edge, and H2, LB2, // // LH2, TH2, the corresponding quantities at high z. // // // //////////////////////////////////////////////////////////////////////////// class TGeoGtra : public TGeoTrap { protected: // data members Double_t fTwistAngle; // twist angle in degrees public: // constructors TGeoGtra(); TGeoGtra(Double_t dz, Double_t theta, Double_t phi, Double_t twist, Double_t h1, Double_t bl1, Double_t tl1, Double_t alpha1, Double_t h2, Double_t bl2, Double_t tl2, Double_t alpha2); TGeoGtra(const char *name, Double_t dz, Double_t theta, Double_t phi, Double_t twist, Double_t h1, Double_t bl1, Double_t tl1, Double_t alpha1, Double_t h2, Double_t bl2, Double_t tl2, Double_t alpha2); // destructor virtual ~TGeoGtra(); virtual Double_t DistFromInside(Double_t *point, Double_t *dir, Int_t iact=1, Double_t step=TGeoShape::Big(), Double_t *safe=0) const; virtual Double_t DistFromOutside(Double_t *point, Double_t *dir, Int_t iact=1, Double_t step=TGeoShape::Big(), Double_t *safe=0) const; virtual TGeoShape *GetMakeRuntimeShape(TGeoShape *mother, TGeoMatrix *mat) const; Double_t GetTwistAngle() const {return fTwistAngle;} virtual void SetDimensions(Double_t *param); virtual void SavePrimitive(ostream &out, Option_t *option = ""); ClassDef(TGeoGtra, 1) // G3 GTRA shape }; #endif