library: libGeom
#include "TGeoBBox.h"

TGeoBBox


class description - header file - source file - inheritance tree (.pdf)

class TGeoBBox : public TGeoShape

Inheritance Chart:
TObject
<-
TNamed
<-
TGeoShape
<-
TGeoBBox
<-
TGeoArb8
<-
TGeoTrap
<-
TGeoGtra
TGeoCompositeShape
TGeoCone
<-
TGeoConeSeg
TGeoHalfSpace
TGeoPara
TGeoParaboloid
TGeoPcon
 [more...]

    protected:
virtual void FillBuffer3D(TBuffer3D& buffer, Int_t reqSections, Bool_t localFrame) const public:
TGeoBBox() TGeoBBox(Double_t dx, Double_t dy, Double_t dz, Double_t* origin = 0) TGeoBBox(const char* name, Double_t dx, Double_t dy, Double_t dz, Double_t* origin = 0) TGeoBBox(Double_t* param) TGeoBBox(const TGeoBBox&) virtual ~TGeoBBox() static Bool_t AreOverlapping(const TGeoBBox* box1, const TGeoMatrix* mat1, const TGeoBBox* box2, const TGeoMatrix* mat2) virtual Double_t Capacity() const static TClass* Class() virtual void ComputeBBox() virtual void ComputeNormal(Double_t* point, Double_t* dir, Double_t* norm) virtual Bool_t Contains(Double_t* point) const virtual Bool_t CouldBeCrossed(Double_t* point, Double_t* dir) const virtual Int_t DistancetoPrimitive(Int_t px, Int_t py) 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 const char* GetAxisName(Int_t iaxis) const virtual Double_t GetAxisRange(Int_t iaxis, Double_t& xlo, Double_t& xhi) const virtual void GetBoundingCylinder(Double_t* param) const virtual const TBuffer3D& GetBuffer3D(Int_t reqSections, Bool_t localFrame) const virtual Int_t GetByteCount() const virtual Double_t GetDX() const virtual Double_t GetDY() const virtual Double_t GetDZ() const 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 virtual Int_t GetNmeshVertices() const virtual const Double_t* GetOrigin() const virtual void InspectShape() const virtual TClass* IsA() const virtual Bool_t IsCylType() const virtual Bool_t IsNullBox() const virtual Bool_t IsValidBox() const virtual TBuffer3D* MakeBuffer3D() const TGeoBBox& operator=(const TGeoBBox&) virtual Double_t Safety(Double_t* point, Bool_t in = kTRUE) const virtual void SavePrimitive(ostream& out, Option_t* option = "") void SetBoxDimensions(Double_t dx, Double_t dy, Double_t dz, Double_t* origin = 0) void SetBoxPoints(Double_t* points) const virtual void SetDimensions(Double_t* param) virtual void SetPoints(Double_t* points) const virtual void SetPoints(Float_t* points) const virtual void SetSegsAndPols(TBuffer3D& buffer) const virtual void ShowMembers(TMemberInspector& insp, char* parent) virtual void Sizeof3D() const virtual void Streamer(TBuffer& b) void StreamerNVirtual(TBuffer& b)

Data Members


    protected:
Double_t fDX X half-length Double_t fDY Y half-length Double_t fDZ Z half-length Double_t fOrigin[3] box origin

Class Description

TGeoBBox()
 Default constructor
TGeoBBox(Double_t dx, Double_t dy, Double_t dz, Double_t *origin)
 Constructor where half-lengths are provided.
TGeoBBox(const char *name, Double_t dx, Double_t dy, Double_t dz, Double_t *origin)
 Constructor with shape name.
TGeoBBox(Double_t *param)
 Constructor based on the array of parameters
 param[0] - half-length in x
 param[1] - half-length in y
 param[2] - half-length in z
~TGeoBBox()
 Destructor
Bool_t AreOverlapping(const TGeoBBox *box1, const TGeoMatrix *mat1, const TGeoBBox *box2, const TGeoMatrix *mat2)
 Check if 2 positioned boxes overlap.
Double_t Capacity()
 Computes capacity of the shape in [length^3].
void ComputeNormal(Double_t *point, Double_t *dir, Double_t *norm)
 Computes normal to closest surface from POINT.
Bool_t CouldBeCrossed(Double_t *point, Double_t *dir)
 Decides fast if the bounding box could be crossed by a vector.
Int_t DistancetoPrimitive(Int_t px, Int_t py)
 Compute closest distance from point px,py to each corner.
TGeoVolume * Divide(TGeoVolume *voldiv, const char *divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step)
--- Divide this box shape belonging to volume "voldiv" into ndiv equal volumes
 called divname, from start position with the given step. Returns pointer
 to created division cell volume. In case a wrong division axis is supplied,
 returns pointer to volume to be divided.
void ComputeBBox()
 Compute bounding box - nothing to do in this case.
Bool_t Contains(Double_t *point)
 Test if point is inside this shape.
Double_t DistFromInside(Double_t *point, Double_t *dir, Int_t iact, Double_t step, Double_t *safe)
 Compute distance from inside point to surface of the box.
 Boundary safe algorithm.
Double_t DistFromOutside(Double_t *point, Double_t *dir, Int_t iact, Double_t step, Double_t *safe)
 Compute distance from outside point to surface of the box.
 Boundary safe algorithm.
const char * GetAxisName(Int_t iaxis)
 Returns name of axis IAXIS.
Double_t GetAxisRange(Int_t iaxis, Double_t &xlo, Double_t &xhi)
 Get range of shape for a given axis.
void GetBoundingCylinder(Double_t *param)
 Fill vector param[4] with the bounding cylinder parameters. The order
 is the following : Rmin, Rmax, Phi1, Phi2
Int_t GetFittingBox(const TGeoBBox *parambox, TGeoMatrix *mat, Double_t &dx, Double_t &dy, Double_t &dz)
 Fills real parameters of a positioned box inside this one. Returns 0 if successfull.
TGeoShape * GetMakeRuntimeShape(TGeoShape *mother, TGeoMatrix *mat)
 In case shape has some negative parameters, these has to be computed
 in order to fit the mother
void InspectShape()
 Prints shape parameters
TBuffer3D * MakeBuffer3D()
 Creates a TBuffer3D describing *this* shape.
 Coordinates are in local reference frame.
void SetSegsAndPols(TBuffer3D &buff)
 Fills TBuffer3D structure for segments and polygons.
Double_t Safety(Double_t *point, Bool_t in)
 Computes the closest distance from given point to this shape.
void SavePrimitive(ostream &out, Option_t * /*option*/ /*= ""*/)
 Save a primitive as a C++ statement(s) on output stream "out".
void SetBoxDimensions(Double_t dx, Double_t dy, Double_t dz, Double_t *origin)
 Set parameters of the box.
void SetDimensions(Double_t *param)
 Set dimensions based on the array of parameters
 param[0] - half-length in x
 param[1] - half-length in y
 param[2] - half-length in z
void SetBoxPoints(Double_t *points)
 Fill box vertices to an array.
void SetPoints(Double_t *points)
 Fill box points.
void SetPoints(Float_t *points)
 Fill box points.
void Sizeof3D()
/// fill size of this 3-D object
/    TVirtualGeoPainter *painter = gGeoManager->GetGeomPainter();
/    if (painter) painter->AddSize3D(8, 12, 6);
const TBuffer3D & GetBuffer3D(Int_t reqSections, Bool_t localFrame)
 Fills a static 3D buffer and returns a reference.
void FillBuffer3D(TBuffer3D & buffer, Int_t reqSections, Bool_t localFrame)
 Fills the supplied buffer, with sections in desired frame
 See TBuffer3D.h for explanation of sections, frame etc.
TGeoBBox()
 constructors
Int_t GetByteCount()
Int_t GetNmeshVertices()
Double_t GetDX()
Double_t GetDY()
Double_t GetDZ()
Bool_t IsCylType()
Bool_t IsValidBox()
Bool_t IsNullBox()

Author: Andrei Gheata 24/10/01
Last update: root/geom:$Name: $:$Id: TGeoBBox.cxx,v 1.50 2006/07/03 16:10:44 brun Exp $// Author: Andrei Gheata 24/10/01
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *


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