Open CASCADE Technology 6.6.0
Public Member Functions | Protected Attributes
ShapeAnalysis_TransferParameters Class Reference

This tool is used for transferring parameters
from 3d curve of the edge to pcurve and vice versa.

Default behaviour is to trsnafer parameters with help
of linear transformation:

T2d = myShift + myScale * T3d
where
myScale = ( Last2d - First2d ) / ( Last3d - First3d )
myShift = First2d - First3d * myScale
[First3d, Last3d] and [First2d, Last2d] are ranges of
edge on curve and pcurve

This behaviour can be redefined in derived classes, for example,
using projection.

#include <ShapeAnalysis_TransferParameters.hxx>

Inheritance diagram for ShapeAnalysis_TransferParameters:
Inheritance graph
[legend]

Public Member Functions

 ShapeAnalysis_TransferParameters ()
 Creates empty tool with myShift = 0 and myScale = 1

 ShapeAnalysis_TransferParameters (const TopoDS_Edge &E, const TopoDS_Face &F)
 Creates a tool and initializes it with edge and face

virtual void Init (const TopoDS_Edge &E, const TopoDS_Face &F)
 Initialize a tool with edge and face

void SetMaxTolerance (const Standard_Real maxtol)
 Sets maximal tolerance to use linear recomputation of
parameters.

virtual
Handle_TColStd_HSequenceOfReal 
Perform (const Handle< TColStd_HSequenceOfReal > &Params, const Standard_Boolean To2d)
 Transfers parameters given by sequence Params from 3d curve
to pcurve (if To2d is True) or back (if To2d is False)

virtual Standard_Real Perform (const Standard_Real Param, const Standard_Boolean To2d)
 Transfers parameter given by sequence Params from 3d curve
to pcurve (if To2d is True) or back (if To2d is False)

virtual void TransferRange (TopoDS_Edge &newEdge, const Standard_Real prevPar, const Standard_Real currPar, const Standard_Boolean To2d)
 Recomputes range of curves from NewEdge.
If Is2d equals True parameters are recomputed by curve2d else by curve3d.

virtual Standard_Boolean IsSameRange () const
 Returns True if 3d curve of edge and pcurve are SameRange
(in default implementation, if myScale == 1 and myShift == 0)

Protected Attributes

Standard_Real myFirst
Standard_Real myLast
TopoDS_Edge myEdge
Standard_Real myMaxTolerance

Constructor & Destructor Documentation

ShapeAnalysis_TransferParameters::ShapeAnalysis_TransferParameters ( )
ShapeAnalysis_TransferParameters::ShapeAnalysis_TransferParameters ( const TopoDS_Edge E,
const TopoDS_Face F 
)

Member Function Documentation

virtual void ShapeAnalysis_TransferParameters::Init ( const TopoDS_Edge E,
const TopoDS_Face F 
) [virtual]
virtual Standard_Boolean ShapeAnalysis_TransferParameters::IsSameRange ( ) const [virtual]
virtual Standard_Real ShapeAnalysis_TransferParameters::Perform ( const Standard_Real  Param,
const Standard_Boolean  To2d 
) [virtual]
virtual Handle_TColStd_HSequenceOfReal ShapeAnalysis_TransferParameters::Perform ( const Handle< TColStd_HSequenceOfReal > &  Params,
const Standard_Boolean  To2d 
) [virtual]
void ShapeAnalysis_TransferParameters::SetMaxTolerance ( const Standard_Real  maxtol)
virtual void ShapeAnalysis_TransferParameters::TransferRange ( TopoDS_Edge newEdge,
const Standard_Real  prevPar,
const Standard_Real  currPar,
const Standard_Boolean  To2d 
) [virtual]

Field Documentation


The documentation for this class was generated from the following file:
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