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TGTRA TGTRA() TGTRA TGTRA(const char* name, const char* title, const char* material, Float_t dz, Float_t theta, Float_t phi, Float_t twist, Float_t h1, Float_t bl1, Float_t tl1, Float_t alpha1, Float_t h2, Float_t bl2, Float_t tl2, Float_t alpha2) TGTRA TGTRA(TGTRA&) virtual void ~TGTRA() static TClass* Class() Float_t GetAlpha1() const Float_t GetAlpha2() const Float_t GetBl1() const Float_t GetBl2() const Float_t GetH1() const Float_t GetH2() const Float_t GetTl1() const Float_t GetTl2() const Float_t GetTwist() const virtual TClass* IsA() const virtual void SetPoints(Float_t* buff) virtual void ShowMembers(TMemberInspector& insp, char* parent) virtual void Streamer(TBuffer& b) void StreamerNVirtual(TBuffer& b)## Data Members

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Float_t fTwisttwisting parameterFloat_t fH1half length in y at low zFloat_t fBl1half length in x at low z and y low edgeFloat_t fTl1half length in x at low z and y high edgeFloat_t fAlpha1angle w.r.t. the y axisFloat_t fH2half length in y at high zFloat_t fBl2half length in x at high z and y low edgeFloat_t fTl2half length in x at high z and y high edgeFloat_t fAlpha2angle w.r.t. the y axispublic:

GTRA is a general twisted trapezoid. The faces perpendicular to z are trapezia and their centres are not necessarily on a line parallel to the z axis as the TRAP; additionally, the faces may be twisted so that none of their edges are parallel. It is a TRAP shape, except that it is twisted in the x-y plane as a function of z. The parallel sides perpendicular to the z axis are rotated with respect to the x axis by an angle TWIST, which is one of the parameters. The shape is defined by the eight corners and is assumed to be constructed of straight lines joining points on the boundary of the trapezoidal face at z=-DZ to the corresponding points on the face at z=DZ. Divisions are not allowed. It has 15 parameters: - name name of the shape - title shape's title - material (see TMaterial) - dZ half-length along the z axis - theta polar angle of the line joining the centre of the face at -DZ to the centre of the one at +DZ - phi azimuthal angle of the line joining the centre of the face at -DZ to the centre of the one at +DZ - twist twist angle of the faces parallel to the x-y plane at z = +/- DZ around an axis parallel to z passing through their centre - h1 half-length along y of the face at -DZ - bl1 half-length along x of the side at -H1 in y of the face at -DZ in z - tl1 half-length along x of the side at +H1 in y of the face at -DZ in z - alpha1 angle with respect to the y axis from the centre of the side at -H1 in y to the centre of the side at +H1 in y of the face at -DZ in z - h2 half-length along y of the face at +DZ - bL2 half-length along x of the side at -H2 in y of the face at +DZ in z - tl2 half-length along x of the side at +H2 in y of the face at +DZ in z - alpha2 angle with respect to the y axis from the centre of the side at -H2 in y to the centre of the side at +H2 in y of the face at +DZ in z

TGTRA ()

*-*-*-*-*-*-*-*-*-*-*-*GTRA shape default constructor*-*-*-*-*-*-*-*-*-*-*-*-* *-* ==============================

TGTRA (const char *name, const char *title, const char *material, Float_t dz, Float_t theta, Float_t phi, Float_t twist, Float_t h1, Float_t bl1, Float_t tl1, Float_t alpha1, Float_t h2, Float_t bl2, Float_t tl2, Float_t alpha2) : TBRIK (name, title, material, theta, phi, dz)

*-*-*-*-*-*-*-*-*-*-*-*-*GTRA shape normal constructor*-*-*-*-*-*-*-*-*-*-*-*-* *-* =============================

~TGTRA ()

*-*-*-*-*-*-*-*-*-*-*-*-*GTRA shape default destructor*-*-*-*-*-*-*-*-*-*-*-*-* *-* =============================

void SetPoints (Float_t *buff)

*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*Create GTRA points*-*-*-*-*-*-*-*-*-*-*-*-*-*-* *-* ==================

Float_t GetTwist() const Float_t GetH1() const Float_t GetBl1() const Float_t GetTl1() const Float_t GetAlpha1() const Float_t GetH2() const Float_t GetBl2() const Float_t GetTl2() const Float_t GetAlpha2() const TClass* Class() TClass* IsA() const void ShowMembers(TMemberInspector& insp, char* parent) void Streamer(TBuffer& b) void StreamerNVirtual(TBuffer& b) TGTRA TGTRA(TGTRA&)

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