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-- File: ShapeUpgrade_SplitSurface.cdl
-- Created: Mon Mar 16 17:28:27 1998
-- Author: Pierre BARRAS
-- <pbs@sgi84>
---Copyright: Matra Datavision 1998
class SplitSurface from ShapeUpgrade inherits TShared from MMgt
---Purpose: Splits a Surface with a criterion.
uses
HArray1OfInteger from TColStd,
HSequenceOfReal from TColStd,
HArray2OfSurface from TColGeom,
Surface from Geom,
Status from ShapeExtend,
CompositeSurface from ShapeExtend
is
Create returns mutable SplitSurface from ShapeUpgrade;
---Purpose: Empty constructor.
Init (me: mutable; S: Surface from Geom);
---Purpose: Initializes with single supporting surface.
Init (me: mutable; S: Surface from Geom; UFirst,ULast,VFirst,VLast : Real);
---Purpose: Initializes with single supporting surface with bounding parameters.
SetUSplitValues(me: mutable; UValues : HSequenceOfReal from TColStd);
---Purpose: Sets U parameters where splitting has to be done
SetVSplitValues(me: mutable; VValues : HSequenceOfReal from TColStd);
---Purpose: Sets V parameters where splitting has to be done
Build (me: mutable; Segment: Boolean) is virtual;
---Purpose: Performs splitting of the supporting surface.
-- If resulting surface is B-Spline and Segment is True,
-- the result is composed with segments of the surface bounded
-- by the U and V SplitValues (method Geom_BSplineSurface::Segment
-- is used).
-- If Segment is False, the result is composed with
-- Geom_RectangularTrimmedSurface all based on the same complete
-- surface.
-- Fields myNbResultingRow and myNbResultingCol must be set to
-- specify the size of resulting grid of surfaces.
Compute(me: mutable; Segment: Boolean = Standard_True) is virtual;
---Purpose: Calculates points for correction/splitting of the surface.
Perform(me: mutable; Segment: Boolean = Standard_True);
---Purpose: Performs correction/splitting of the surface.
--- First defines splitting values by method Compute(), then calls method Build().
USplitValues(me) returns HSequenceOfReal from TColStd;
---C++: return const &
--- Purpose : returns all the U splitting values including the
-- First and Last parameters of the input surface
VSplitValues(me) returns HSequenceOfReal from TColStd;
---C++: return const &
--- Purpose : returns all the splitting V values including the
-- First and Last parameters of the input surface
Status (me; status: Status from ShapeExtend) returns Boolean;
---Purpose: Returns the status
-- OK - no splitting is needed
-- DONE1 - splitting required and gives more than one patch
-- DONE2 - splitting is required, but gives only single patch (initial)
-- DONE3 - geometric form of the surface or parametrisation is modified
ResSurfaces(me) returns CompositeSurface from ShapeExtend;
---C++: return const &
---Purpose: Returns obtained surfaces after splitting as CompositeSurface
fields
myUSplitValues : HSequenceOfReal from TColStd is protected;
myVSplitValues : HSequenceOfReal from TColStd is protected;
myNbResultingRow : Integer is protected;
myNbResultingCol : Integer is protected;
mySurface : Surface from Geom is protected;
myStatus : Integer is protected;
myResSurfaces : CompositeSurface from ShapeExtend is protected;
end;
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