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File indexing completed on 2026-08-07 09:27:09 

0001 // @(#)root/geom:$Id$
0002 // Author: Andrei Gheata   24/10/01
0003 
0004 /*************************************************************************
0005  * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers.               *
0006  * All rights reserved.                                                  *
0007  *                                                                       *
0008  * For the licensing terms see $ROOTSYS/LICENSE.                         *
0009  * For the list of contributors see $ROOTSYS/README/CREDITS.             *
0010  *************************************************************************/
0011 
0012 #ifndef ROOT_TGeoBBox
0013 #define ROOT_TGeoBBox
0014 
0015 #include "TGeoShape.h"
0016 #include "Math/Vector3D.h"
0017 
0018 class TGeoBBox : public TGeoShape {
0019 protected:
0020    // data members
0021    Double_t fDX;        // X half-length
0022    Double_t fDY;        // Y half-length
0023    Double_t fDZ;        // Z half-length
0024    Double_t fOrigin[3]; // box origin
0025                         // methods
0026    void FillBuffer3D(TBuffer3D &buffer, Int_t reqSections, Bool_t localFrame) const override;
0027 
0028    TGeoBBox(const TGeoBBox &) = delete;
0029    TGeoBBox &operator=(const TGeoBBox &) = delete;
0030 
0031 public:
0032    // constructors
0033    TGeoBBox();
0034    TGeoBBox(Double_t dx, Double_t dy, Double_t dz, Double_t *origin = nullptr);
0035    TGeoBBox(const char *name, Double_t dx, Double_t dy, Double_t dz, Double_t *origin = nullptr);
0036    TGeoBBox(Double_t *param);
0037    // destructor
0038    ~TGeoBBox() override;
0039    // methods
0040 
0041    Double_t Capacity() const override;
0042    void ComputeBBox() override;
0043    void ComputeNormal(const Double_t *point, const Double_t *dir, Double_t *norm) const override;
0044    void ComputeNormal_v(const Double_t *points, const Double_t *dirs, Double_t *norms, Int_t vecsize) override;
0045    Bool_t Contains(const Double_t *point) const override;
0046    void Contains_v(const Double_t *points, Bool_t *inside, Int_t vecsize) const override;
0047    static Bool_t Contains(const Double_t *point, Double_t dx, Double_t dy, Double_t dz, const Double_t *origin);
0048    Bool_t CouldBeCrossed(const Double_t *point, const Double_t *dir) const override;
0049    Int_t DistancetoPrimitive(Int_t px, Int_t py) override;
0050    Double_t DistFromInside(const Double_t *point, const Double_t *dir, Int_t iact = 1, Double_t step = TGeoShape::Big(),
0051                            Double_t *safe = nullptr) const override;
0052    void DistFromInside_v(const Double_t *points, const Double_t *dirs, Double_t *dists, Int_t vecsize,
0053                          Double_t *step) const override;
0054    static Double_t DistFromInside(const Double_t *point, const Double_t *dir, Double_t dx, Double_t dy, Double_t dz,
0055                                   const Double_t *origin, Double_t stepmax = TGeoShape::Big());
0056    Double_t DistFromOutside(const Double_t *point, const Double_t *dir, Int_t iact = 1,
0057                             Double_t step = TGeoShape::Big(), Double_t *safe = nullptr) const override;
0058    void DistFromOutside_v(const Double_t *points, const Double_t *dirs, Double_t *dists, Int_t vecsize,
0059                           Double_t *step) const override;
0060    static Double_t DistFromOutside(const Double_t *point, const Double_t *dir, Double_t dx, Double_t dy, Double_t dz,
0061                                    const Double_t *origin, Double_t stepmax = TGeoShape::Big());
0062    TGeoVolume *
0063    Divide(TGeoVolume *voldiv, const char *divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step) override;
0064    const char *GetAxisName(Int_t iaxis) const override;
0065    Double_t GetAxisRange(Int_t iaxis, Double_t &xlo, Double_t &xhi) const override;
0066    void GetBoundingCylinder(Double_t *param) const override;
0067    const TBuffer3D &GetBuffer3D(Int_t reqSections, Bool_t localFrame) const override;
0068    Int_t GetByteCount() const override { return 36; }
0069    inline ROOT::Math::XYZVector GetDimensions() const { return ROOT::Math::XYZVector(fDX, fDY, fDZ); }
0070    virtual Double_t GetFacetArea(Int_t index = 0) const;
0071    virtual Bool_t GetPointsOnFacet(Int_t index, Int_t npoints, Double_t *array) const;
0072    Bool_t GetPointsOnSegments(Int_t npoints, Double_t *array) const override;
0073    Int_t
0074    GetFittingBox(const TGeoBBox *parambox, TGeoMatrix *mat, Double_t &dx, Double_t &dy, Double_t &dz) const override;
0075    TGeoShape *GetMakeRuntimeShape(TGeoShape *mother, TGeoMatrix *mat) const override;
0076    void GetMeshNumbers(Int_t &nvert, Int_t &nsegs, Int_t &npols) const override;
0077    Int_t GetNmeshVertices() const override { return 8; }
0078    virtual Double_t GetDX() const { return fDX; }
0079    virtual Double_t GetDY() const { return fDY; }
0080    virtual Double_t GetDZ() const { return fDZ; }
0081    virtual const Double_t *GetOrigin() const { return fOrigin; }
0082    ROOT::Math::XYZVector GetWorldCenter(const TGeoMatrix *m) const;
0083    void InspectShape() const override;
0084    Bool_t IsConvex() const override { return kTRUE; }
0085    Bool_t IsCylType() const override { return kFALSE; }
0086    Bool_t IsValidBox() const override { return ((fDX < 0) || (fDY < 0) || (fDZ < 0)) ? kFALSE : kTRUE; }
0087    virtual Bool_t IsNullBox() const { return ((fDX < 1.E-16) && (fDY < 1.E-16) && (fDZ < 1.E-16)) ? kTRUE : kFALSE; }
0088    static Bool_t IsSeparatingAxis(const ROOT::Math::XYZVector &L, const ROOT::Math::XYZVector &D,
0089                                   const ROOT::Math::XYZVector &Ax, const ROOT::Math::XYZVector &Ay,
0090                                   const ROOT::Math::XYZVector &Az, const ROOT::Math::XYZVector &Bx,
0091                                   const ROOT::Math::XYZVector &By, const ROOT::Math::XYZVector &Bz,
0092                                   const ROOT::Math::XYZVector &dA, const ROOT::Math::XYZVector &dB, Double_t tol);
0093    TBuffer3D *MakeBuffer3D() const override;
0094    static bool MayIntersect(const TGeoBBox *boxA, const TGeoMatrix *mA, const TGeoBBox *boxB, const TGeoMatrix *mB);
0095    Double_t Safety(const Double_t *point, Bool_t in = kTRUE) const override;
0096    void Safety_v(const Double_t *points, const Bool_t *inside, Double_t *safe, Int_t vecsize) const override;
0097    void SavePrimitive(std::ostream &out, Option_t *option = "") override;
0098    void SetBoxDimensions(Double_t dx, Double_t dy, Double_t dz, Double_t *origin = nullptr);
0099    void SetDimensions(Double_t *param) override;
0100    void SetBoxPoints(Double_t *points) const;
0101    void SetPoints(Double_t *points) const override;
0102    void SetPoints(Float_t *points) const override;
0103    void SetSegsAndPols(TBuffer3D &buffer) const override;
0104    void Sizeof3D() const override;
0105 
0106    ClassDefOverride(TGeoBBox, 1) // box primitive
0107 };
0108 
0109 #endif
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