class TGeoSubtraction: public TGeoBoolNode

  TGeoBoolNode - base class for Boolean operations between two shapes.

 A Boolean node describes a Boolean operation between 'left' and 'right'
 shapes positioned with respect to an ARBITRARY reference frame. The boolean
 node is referenced by a mother composite shape and its shape components may
 be primitive but also composite shapes. The later situation leads to a binary
 tree hierarchy. When the parent composite shape is used to create a volume,
 the reference frame of the volume is chosen to match the frame in which
 node shape components were defined.

 The positioned shape components may or may not be disjoint. The specific
 implementations for Boolean nodes are:

    TGeoUnion - representing the Boolean  union of two positioned shapes

    TGeoSubtraction - representing the Boolean subtraction of two positioned
                shapes

    TGeoIntersection - representing the Boolean intersection of two positioned
                shapes

Function Members (Methods)

public:

	TGeoSubtraction()
	TGeoSubtraction(const char* expr1, const char* expr2)
	TGeoSubtraction(TGeoShape* left, TGeoShape* right, TGeoMatrix* lmat = 0, TGeoMatrix* rmat = 0)
virtual	~TGeoSubtraction()
void	TObject::AbstractMethod(const char* method) const
virtual void	TObject::AppendPad(Option_t* option = "")
virtual void	TObject::Browse(TBrowser* b)
static TClass*	Class()
virtual const char*	TObject::ClassName() const
virtual void	TObject::Clear(Option_t* = "")
virtual TObject*	TObject::Clone(const char* newname = "") const
virtual Int_t	TObject::Compare(const TObject* obj) const
virtual void	ComputeBBox(Double_t& dx, Double_t& dy, Double_t& dz, Double_t* origin)
virtual void	ComputeNormal(Double_t* point, Double_t* dir, Double_t* norm)
virtual Bool_t	Contains(Double_t* point) const
virtual void	TObject::Copy(TObject& object) const
virtual void	TObject::Delete(Option_t* option = "")MENU
virtual Int_t	DistanceToPrimitive(Int_t px, Int_t py)
virtual Int_t	TObject::DistancetoPrimitive(Int_t px, Int_t py)
virtual Double_t	DistFromInside(Double_t* point, Double_t* dir, Int_t iact = 1, Double_t step = 0, Double_t* safe = 0) const
virtual Double_t	DistFromOutside(Double_t* point, Double_t* dir, Int_t iact = 1, Double_t step = 0, Double_t* safe = 0) const
virtual void	TObject::Draw(Option_t* option = "")
virtual void	TObject::DrawClass() constMENU
virtual TObject*	TObject::DrawClone(Option_t* option = "") constMENU
virtual void	TObject::Dump() constMENU
virtual void	TObject::Error(const char* method, const char* msgfmt) const
virtual void	TObject::Execute(const char* method, const char* params, Int_t* error = 0)
virtual void	TObject::Execute(TMethod* method, TObjArray* params, Int_t* error = 0)
virtual void	TObject::ExecuteEvent(Int_t event, Int_t px, Int_t py)
virtual void	TObject::Fatal(const char* method, const char* msgfmt) const
virtual TObject*	TObject::FindObject(const char* name) const
virtual TObject*	TObject::FindObject(const TObject* obj) const
virtual TGeoBoolNode::EGeoBoolType	GetBooleanOperator() const
virtual Option_t*	TObject::GetDrawOption() const
static Long_t	TObject::GetDtorOnly()
virtual const char*	TObject::GetIconName() const
TGeoMatrix*	TGeoBoolNode::GetLeftMatrix() const
TGeoShape*	TGeoBoolNode::GetLeftShape() const
virtual const char*	TObject::GetName() const
virtual Int_t	GetNpoints()
virtual char*	TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_t	TObject::GetObjectStat()
virtual Option_t*	TObject::GetOption() const
TGeoMatrix*	TGeoBoolNode::GetRightMatrix() const
TGeoShape*	TGeoBoolNode::GetRightShape() const
virtual const char*	TObject::GetTitle() const
virtual UInt_t	TObject::GetUniqueID() const
virtual Bool_t	TObject::HandleTimer(TTimer* timer)
virtual ULong_t	TObject::Hash() const
virtual void	TObject::Info(const char* method, const char* msgfmt) const
virtual Bool_t	TObject::InheritsFrom(const char* classname) const
virtual Bool_t	TObject::InheritsFrom(const TClass* cl) const
virtual void	TObject::Inspect() constMENU
void	TObject::InvertBit(UInt_t f)
virtual TClass*	IsA() const
virtual Bool_t	TObject::IsEqual(const TObject* obj) const
virtual Bool_t	TObject::IsFolder() const
Bool_t	TObject::IsOnHeap() const
virtual Bool_t	TObject::IsSortable() const
Bool_t	TObject::IsZombie() const
virtual void	TObject::ls(Option_t* option = "") const
void	TObject::MayNotUse(const char* method) const
virtual Bool_t	TObject::Notify()
static void	TObject::operator delete(void* ptr)
static void	TObject::operator delete(void* ptr, void* vp)
static void	TObject::operator delete[](void* ptr)
static void	TObject::operator delete[](void* ptr, void* vp)
void*	TObject::operator new(size_t sz)
void*	TObject::operator new(size_t sz, void* vp)
void*	TObject::operator new[](size_t sz)
void*	TObject::operator new[](size_t sz, void* vp)
TObject&	TObject::operator=(const TObject& rhs)
virtual void	Paint(Option_t* option)
virtual void	TObject::Pop()
virtual void	TObject::Print(Option_t* option = "") const
virtual Int_t	TObject::Read(const char* name)
virtual void	TObject::RecursiveRemove(TObject* obj)
void	TGeoBoolNode::RegisterMatrices()
void	TObject::ResetBit(UInt_t f)
virtual Double_t	Safety(Double_t* point, Bool_t in = kTRUE) const
virtual void	TObject::SaveAs(const char* filename = "", Option_t* option = "") constMENU
virtual void	SavePrimitive(ostream& out, Option_t* option = "")
void	TObject::SetBit(UInt_t f)
void	TObject::SetBit(UInt_t f, Bool_t set)
virtual void	TObject::SetDrawOption(Option_t* option = "")MENU
static void	TObject::SetDtorOnly(void* obj)
static void	TObject::SetObjectStat(Bool_t stat)
virtual void	TGeoBoolNode::SetPoints(Double_t* points) const
virtual void	TGeoBoolNode::SetPoints(Float_t* points) const
void	TGeoBoolNode::SetSelected(Int_t sel)
virtual void	TObject::SetUniqueID(UInt_t uid)
virtual void	ShowMembers(TMemberInspector& insp)
virtual void	Sizeof3D() const
virtual void	Streamer(TBuffer& b)
void	StreamerNVirtual(TBuffer& b)
virtual void	TObject::SysError(const char* method, const char* msgfmt) const
Bool_t	TObject::TestBit(UInt_t f) const
Int_t	TObject::TestBits(UInt_t f) const
virtual void	TObject::UseCurrentStyle()
virtual void	TObject::Warning(const char* method, const char* msgfmt) const
virtual Int_t	TObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0)
virtual Int_t	TObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0) const

protected:

virtual void	TObject::DoError(int level, const char* location, const char* fmt, va_list va) const
Bool_t	TGeoBoolNode::MakeBranch(const char* expr, Bool_t left)
void	TObject::MakeZombie()

Data Members

public:

enum TGeoBoolNode::EGeoBoolType {	kGeoUnion
	kGeoIntersection
	kGeoSubtraction
};
enum TObject::EStatusBits {	kCanDelete
	kMustCleanup
	kObjInCanvas
	kIsReferenced
	kHasUUID
	kCannotPick
	kNoContextMenu
	kInvalidObject
};
enum TObject::[unnamed] {	kIsOnHeap
	kNotDeleted
	kZombie
	kBitMask
	kSingleKey
	kOverwrite
	kWriteDelete
};

protected:

TGeoShape*	TGeoBoolNode::fLeft	shape on the left branch
TGeoMatrix*	TGeoBoolNode::fLeftMat	transformation that applies to the left branch
Int_t	TGeoBoolNode::fNpoints	! number of points on the mesh
Double_t*	TGeoBoolNode::fPoints	! array of mesh points
TGeoShape*	TGeoBoolNode::fRight	shape on the right branch
TGeoMatrix*	TGeoBoolNode::fRightMat	transformation that applies to the right branch
Int_t	TGeoBoolNode::fSelected	! selected branch

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

void Paint(Option_t* option)

 Paint method.

TGeoSubtraction()

 Default constructor

TGeoSubtraction(const char* expr1, const char* expr2)

 Constructor

TGeoSubtraction(TGeoShape* left, TGeoShape* right, TGeoMatrix* lmat = 0, TGeoMatrix* rmat = 0)

 Constructor providing pointers to components

~TGeoSubtraction()

 Destructor
 --- deletion of components handled by TGeoManager class.

void ComputeBBox(Double_t& dx, Double_t& dy, Double_t& dz, Double_t* origin)

 Compute bounding box corresponding to a subtraction of two shapes.

void ComputeNormal(Double_t* point, Double_t* dir, Double_t* norm)

 Normal computation in POINT. The orientation is chosen so that DIR.dot.NORM>0.

Bool_t Contains(Double_t* point) const

 Find if a subtraction of two shapes contains a given point

Int_t DistanceToPrimitive(Int_t px, Int_t py)

 Compute minimum distance to shape vertices

Double_t DistFromInside(Double_t* point, Double_t* dir, Int_t iact = 1, Double_t step = 0, Double_t* safe = 0) const

 Compute distance from a given point inside to the shape boundary.

Double_t DistFromOutside(Double_t* point, Double_t* dir, Int_t iact = 1, Double_t step = 0, Double_t* safe = 0) const

 Compute distance from a given point outside to the shape.

Int_t GetNpoints()

 Returns number of vertices for the composite shape described by this subtraction.

Double_t Safety(Double_t* point, Bool_t in = kTRUE) const

 Compute safety distance for a union node;

void SavePrimitive(ostream& out, Option_t* option = "")

 Save a primitive as a C++ statement(s) on output stream "out".

void Sizeof3D() const

 Register 3D size of this shape.

EGeoBoolType GetBooleanOperator() const