In This Package:

IGeometryInfo pure geometrical information

Functions
virtual const Gaudi::Transform3D &	IGeometryInfo::toLocalMatrix () const =0
	Full transformation matrix from Global Reference System to the local reference system of this Geometry Info object, including misalignments.
virtual const Gaudi::Transform3D &	IGeometryInfo::toLocalMatrixNominal () const =0
	Ideal transformation matrix from Global Reference System to the local reference system of this Geometry Info object, excluding misalignments.
virtual const Gaudi::Transform3D &	IGeometryInfo::toGlobalMatrixNominal () const =0
	Ideal transformation matrix from local Reference System to the global reference system of this Geometry Info object, excluding misalignments.
virtual const Gaudi::Transform3D &	IGeometryInfo::ownToLocalMatrixNominal () const =0
	Ideal transformation matrix from parent Reference System to the local reference system of this Geometry Info object, excluding misalignment.
virtual const Gaudi::Transform3D &	IGeometryInfo::ownToNominalMatrix () const =0
	Transformation that takes this IGeometryInfoPlus from an off-nominal position within a its parent to the nominal one.
virtual Gaudi::Transform3D	IGeometryInfo::ownToOffNominalMatrix () const =0
	Transformation that takes this IGeometryInfoPlus from a nominal position within a its parent to the off-nominal one.
virtual Gaudi::Transform3D	IGeometryInfo::ownMatrix () const =0
	Transformation from this reference frame to the reference frame of the parent.
virtual StatusCode	IGeometryInfo::ownToOffNominalMatrix (const Gaudi::Transform3D &)=0
	Upate the nominal-> off-nominal 3D transformation of this IGeometryInfo.
virtual StatusCode	IGeometryInfo::ownToOffNominalParams (const std::vector< double > &trans, const std::vector< double > &rot, const std::vector< double > &pivot=std::vector< double >(3))=0
	Update the transformation parametrs describing the nominal->off-nominal 3D transformation of this GeometryInfo.
virtual const Gaudi::Transform3D &	IGeometryInfo::toGlobalMatrix () const =0
	transformation matrix from Local Reference System to the Global Reference System of this IGeometryInfo.
virtual Gaudi::XYZPoint	IGeometryInfo::toLocal (const Gaudi::XYZPoint &globalPoint) const =0
	Perform transformation of point from the Global Reference System to Local Reference System of Geometry Info object.
virtual Gaudi::XYZPoint	IGeometryInfo::toGlobal (const Gaudi::XYZPoint &localPoint) const =0
	perform transformation of point from the LocalReference System to Global Reference System
virtual Gaudi::XYZVector	IGeometryInfo::toLocal (const Gaudi::XYZVector &globalDirection) const =0
	Perform transformation a vector from the Global Reference System to Local Reference System of Geometry Info object.
virtual Gaudi::XYZVector	IGeometryInfo::toGlobal (const Gaudi::XYZVector &localDirection) const =0
	Perform transformation of a vector from the Local Reference System to the Global Reference System.
virtual bool	IGeometryInfo::isInside (const Gaudi::XYZPoint &globalPoint) const =0
	Check for given 3D-point - "Is inside the volume?" For regular case the defnition "is inside" is trivial For "orphan" case the definition is less trivial but also can be defined in a proper way, e.g.

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Detailed Description

Author:

Vanya Belyaev Ivan.Belyaev@itep.ru

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Function Documentation

virtual const Gaudi::Transform3D& IGeometryInfo::toLocalMatrix

(

)

const [pure virtual, inherited]

Full transformation matrix from Global Reference System to the local reference system of this Geometry Info object, including misalignments.

• for "ghosts","orphans" and top-level elements it is just an Identity transformation

  See also:

  toGlobalMatrix()

  Returns:

  the full 3D transformation from the global reference system

Implemented in GeometryInfoPlus.

virtual const Gaudi::Transform3D& IGeometryInfo::toLocalMatrixNominal

(

)

const [pure virtual, inherited]

Ideal transformation matrix from Global Reference System to the local reference system of this Geometry Info object, excluding misalignments.

See also:

toGlobalMatrixNominal()

Returns:

the 3D transformation from the "Global" reference system in the nominal frame.

Implemented in GeometryInfoPlus.

virtual const Gaudi::Transform3D& IGeometryInfo::toGlobalMatrixNominal

(

)

const [pure virtual, inherited]

Ideal transformation matrix from local Reference System to the global reference system of this Geometry Info object, excluding misalignments.

See also:

toLocalMatrixNominal()

Returns:

the 3D transformation from "Local" system in the nominal frame.

Implemented in GeometryInfoPlus.

virtual const Gaudi::Transform3D& IGeometryInfo::ownToLocalMatrixNominal

(

)

const [pure virtual, inherited]

Ideal transformation matrix from parent Reference System to the local reference system of this Geometry Info object, excluding misalignment.

See also:

ownToGlobalMatrixNominal()

Returns:

the transformation from parent's reference system in the nominal frame.

Implemented in GeometryInfoPlus.

virtual const Gaudi::Transform3D& IGeometryInfo::ownToNominalMatrix

(

)

const [pure virtual, inherited]

Transformation that takes this IGeometryInfoPlus from an off-nominal position within a its parent to the nominal one.

It can be thought of as the inverse of the "delta" matrix.

Returns:

the 3D transformation that returns an off-nominal position to the nominal position in the frame of the parent

Implemented in GeometryInfoPlus.

virtual Gaudi::Transform3D IGeometryInfo::ownToOffNominalMatrix

(

)

const [pure virtual, inherited]

Transformation that takes this IGeometryInfoPlus from a nominal position within a its parent to the off-nominal one.

It can be thought of as the "delta" matrix.

Returns:

the 3D transformation that returns a nominal position to the off-nominal position in the frame of the parent

Implemented in GeometryInfoPlus.

virtual Gaudi::Transform3D IGeometryInfo::ownMatrix

(

)

const [pure virtual, inherited]

Transformation from this reference frame to the reference frame of the parent.

Includes local misalignment.

Returns:

the 3D transrmation taking this frame to the frame of the parent.

Implemented in GeometryInfoPlus.

virtual StatusCode IGeometryInfo::ownToOffNominalMatrix

(

const Gaudi::Transform3D &

)

[pure virtual, inherited]

Upate the nominal-> off-nominal 3D transformation of this IGeometryInfo.

Implemented in GeometryInfoPlus.

virtual StatusCode IGeometryInfo::ownToOffNominalParams	(	const std::vector< double > &	trans,
		const std::vector< double > &	rot,
		const std::vector< double > &	pivot = std::vector< double >(3)
	)			[pure virtual, inherited]

Update the transformation parametrs describing the nominal->off-nominal 3D transformation of this GeometryInfo.

Implemented in GeometryInfoPlus.

virtual const Gaudi::Transform3D& IGeometryInfo::toGlobalMatrix

(

)

const [pure virtual, inherited]

transformation matrix from Local Reference System to the Global Reference System of this IGeometryInfo.

See also:

toLocalMatrix()

• for "ghosts","orphans" and top-level elements it is just an Identity transformation

Returns:

the 3D transformation from the local to the global reference system

Implemented in GeometryInfoPlus.

virtual Gaudi::XYZPoint IGeometryInfo::toLocal

(

const Gaudi::XYZPoint &

globalPoint

)

const [pure virtual, inherited]

Perform transformation of point from the Global Reference System to Local Reference System of Geometry Info object.

See also:

toLocalMatrix()

toGlobalMatrix()

toGlobal( const Gaudi::XYZPoint&)

Parameters:

globalPoint

point in Global Reference System

Returns:

point in Local reference system

Implemented in GeometryInfoPlus.

virtual Gaudi::XYZPoint IGeometryInfo::toGlobal

(

const Gaudi::XYZPoint &

localPoint

)

const [pure virtual, inherited]

perform transformation of point from the LocalReference System to Global Reference System

See also:

toLocalMatrix()

toGlobalMatrix()

toLocal( const Gaudi::XYZPoint&)

Parameters:

localPoint

point in Local Reference System

Returns:

point in Global reference system

Implemented in GeometryInfoPlus.

virtual Gaudi::XYZVector IGeometryInfo::toLocal

(

const Gaudi::XYZVector &

globalDirection

)

const [pure virtual, inherited]

Perform transformation a vector from the Global Reference System to Local Reference System of Geometry Info object.

See also:

toLocalMatrix()

toGlobalMatrix()

toGlobal( const Gaudi::XYZVector&)

Parameters:

globalDirection

vector in Global Reference System

Returns:

vector in Local reference system direction

Implemented in GeometryInfoPlus.

virtual Gaudi::XYZVector IGeometryInfo::toGlobal

(

const Gaudi::XYZVector &

localDirection

)

const [pure virtual, inherited]

Perform transformation of a vector from the Local Reference System to the Global Reference System.

See also:

toLocalMatrix()

toGlobalMatrix()

toLocal( const Gaudi::XYZVector&)

Parameters:

localDirection

vector in Local Reference System

Returns:

vector in Global reference system direction

Implemented in GeometryInfoPlus.

virtual bool IGeometryInfo::isInside

(

const Gaudi::XYZPoint &

globalPoint

)

const [pure virtual, inherited]

Check for given 3D-point - "Is inside the volume?"

• For regular case the defnition "is inside" is trivial
• For "orphan" case the definition is less trivial but also can be defined in a proper way, e.g.

by considering the point as "local point". Within this approach the previous case is just the combination of transformation into local frame and then *is inside* method for pseudo-orphan.

• For "ghosts" only one formal definition can be done - it is just the logical "OR" for all registered daughter Geometry Elements. Obviously it triggers the recursive calls. What to do if the ghost element has no any descendants? The best way is just to return "false" - "something" can not be *inside* of "nothing". :-))

  See also:

  toLocal( const Gaudi::XYZPoint& )

  toGlobal( const Gaudi::XYZPoint& )

  toLocalMatrix()

  toGlobalMatrix()

  Parameters:

  globalPoint

  point in Global Referency System

  Returns:

  true if point "is inside" of the Geometry Info element

Implemented in GeometryInfoPlus.

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