library: libGeom
#include "TGeoBBox.h"

TGeoBBox


class description - 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() 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(ofstream& 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) :TGeoShape("")
 Constructor where half-lengths are provided.

TGeoBBox(const char *name, Double_t dx, Double_t dy, Double_t dz, Double_t *origin) :TGeoShape(name)
 Constructor with shape name.

TGeoBBox(Double_t *param) :TGeoShape("")
 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

Double_t Capacity() const
 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) const
 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) const
 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) const
 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) const
 Compute distance from outside point to surface of the box.
 Boundary safe algorithm.

const char* GetAxisName(Int_t iaxis) const
 Returns name of axis IAXIS.

Double_t GetAxisRange(Int_t iaxis, Double_t &xlo, Double_t &xhi) const
 Get range of shape for a given axis.

void GetBoundingCylinder(Double_t *param) const
 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) const
 Fills real parameters of a positioned box inside this one. Returns 0 if successfull.

TGeoShape* GetMakeRuntimeShape(TGeoShape *mother, TGeoMatrix *mat) const
 In case shape has some negative parameters, these has to be computed
 in order to fit the mother

void InspectShape() const
 Prints shape parameters

TBuffer3D* MakeBuffer3D() const
 Creates a TBuffer3D describing *this* shape.
 Coordinates are in local reference frame.

void SetSegsAndPols(TBuffer3D &buff) const
 Fills TBuffer3D structure for segments and polygons.

Double_t Safety(Double_t *point, Bool_t in) const
 Computes the closest distance from given point to this shape.

void SavePrimitive(ofstream &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) const
 Fill box vertices to an array.

void SetPoints(Double_t *points) const
 Fill box points.

void SetPoints(Float_t *points) const
 Fill box points.

void Sizeof3D() const
/// 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) const
 Fills a static 3D buffer and returns a reference.

void FillBuffer3D(TBuffer3D & buffer, Int_t reqSections, Bool_t localFrame) const
 Fills the supplied buffer, with sections in desired frame
 See TBuffer3D.h for explanation of sections, frame etc.



Inline Functions


                  Int_t GetByteCount() const
                  Int_t GetNmeshVertices() const
               Double_t GetDX() const
               Double_t GetDY() const
               Double_t GetDZ() const
        const Double_t* GetOrigin() const
                 Bool_t IsCylType() const
                 Bool_t IsValidBox() const
                 Bool_t IsNullBox() const
                TClass* Class()
                TClass* IsA() const
                   void ShowMembers(TMemberInspector& insp, char* parent)
                   void Streamer(TBuffer& b)
                   void StreamerNVirtual(TBuffer& b)
               TGeoBBox TGeoBBox(const TGeoBBox&)
              TGeoBBox& operator=(const TGeoBBox&)


Last update: root/geom:$Name: $:$Id: TGeoBBox.cxx,v 1.48 2005/11/18 16:07:58 brun Exp $// Author: Andrei Gheata 24/10/01
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *


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