library: libGeom
#include "TGeoHalfSpace.h"

TGeoHalfSpace


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

class TGeoHalfSpace : public TGeoBBox

Inheritance Chart:
TObject
<-
TNamed
<-
TGeoShape
<-
TGeoBBox
<-
TGeoHalfSpace

    public:
TGeoHalfSpace() TGeoHalfSpace(const char* name, Double_t* p, Double_t* n) TGeoHalfSpace(Double_t* params) TGeoHalfSpace(const TGeoHalfSpace&) virtual ~TGeoHalfSpace() 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 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 void GetBoundingCylinder(Double_t*) const virtual TGeoShape* GetMakeRuntimeShape(TGeoShape*, TGeoMatrix*) const virtual Int_t GetNmeshVertices() const virtual Double_t* GetNorm() virtual Double_t* GetPoint() virtual void InspectShape() const virtual TClass* IsA() const virtual Bool_t IsCylType() const TGeoHalfSpace& operator=(const TGeoHalfSpace&) virtual Double_t Safety(Double_t* point, Bool_t in = kTRUE) const virtual void SavePrimitive(ofstream& out, Option_t* option) virtual void SetDimensions(Double_t* param) virtual void SetPoints(Double_t*) const virtual void SetPoints(Float_t*) const virtual void ShowMembers(TMemberInspector& insp, char* parent) virtual void Sizeof3D() const virtual void Streamer(TBuffer& b) void StreamerNVirtual(TBuffer& b)

Data Members

    private:
Double_t fP[3] Double_t fN[3]

Class Description

 TGeoHalfSpace - A half-space defined by:
            p[3] - an arbitrary point on the plane
            n[3] - normal at the plane in point P
    A half-space is not really a shape, because it is infinite. The normal
    points "outside" the half-space
_____________________________________________________________________________

TGeoHalfSpace()
 Dummy constructor

TGeoHalfSpace(const char *name, Double_t *p, Double_t *n) :TGeoBBox(name, 0,0,0)
 Constructor with name, point on the plane and normal

TGeoHalfSpace(Double_t *param) :TGeoBBox(0,0,0)
 Default constructor specifying minimum and maximum radius

~TGeoHalfSpace()
 destructor

void ComputeNormal(Double_t * /*point*/, Double_t *dir, Double_t *norm)
 Compute normal to closest surface from POINT.

Bool_t Contains(Double_t *point) const
 test if point is inside the half-space

Int_t DistancetoPrimitive(Int_t /*px*/, Int_t /*py*/)
 A half-space does not have a mesh primitive

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 the plane

Double_t DistFromOutside(Double_t *point, Double_t *dir, Int_t iact, Double_t step, Double_t *safe) const
 compute distance from inside point to the plane

TGeoVolume* Divide(TGeoVolume * /*voldiv*/, const char * /*divname*/, Int_t /*iaxis*/, Int_t /*ndiv*/, Double_t /*start*/, Double_t /*step*/)

void InspectShape() const
 print shape parameters

Double_t Safety(Double_t *point, Bool_t /*in*/) const
 computes the closest distance from given point to this shape, according
 to option. The matching point on the shape is stored in spoint.

void SavePrimitive(ofstream &out, Option_t * /*option*/)
 Save a primitive as a C++ statement(s) on output stream "out".

void SetDimensions(Double_t *param)



Inline Functions


                  void ComputeBBox()
             Double_t* GetPoint()
             Double_t* GetNorm()
                  void GetBoundingCylinder(Double_t*) const
            TGeoShape* GetMakeRuntimeShape(TGeoShape*, TGeoMatrix*) const
                 Int_t GetNmeshVertices() const
                Bool_t IsCylType() const
                  void SetPoints(Double_t*) const
                  void SetPoints(Float_t*) const
                  void Sizeof3D() const
               TClass* Class()
               TClass* IsA() const
                  void ShowMembers(TMemberInspector& insp, char* parent)
                  void Streamer(TBuffer& b)
                  void StreamerNVirtual(TBuffer& b)
         TGeoHalfSpace TGeoHalfSpace(const TGeoHalfSpace&)
        TGeoHalfSpace& operator=(const TGeoHalfSpace&)


Author: Mihaela Gheata 03/08/04
Last update: :$Name: $:$Id: TGeoHalfSpace.cxx,v 1.8 2005/05/13 16:20:38 brun Exp $
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *


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