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-- File: ShapeConstruct_Curve.cdl
-- Created: Tue Jul 14 10:11:02 1998
-- Author: data exchange team
-- <det@pronox.nnov.matra-dtv.fr>
---Copyright: Matra Datavision 1998
class Curve from ShapeConstruct
---Purpose: Adjusts curve to have start and end points at the given
-- points (currently works on lines and B-Splines only)
uses
Pnt from gp,
Pnt2d from gp,
Curve from Geom,
Curve from Geom2d,
BSplineCurve from Geom,
BSplineCurve from Geom2d,
HArray1OfReal from TColStd,
Array1OfReal from TColStd
is
AdjustCurve (me; C3D: Curve from Geom;
P1, P2: Pnt from gp;
take1, take2: Boolean = Standard_True)
returns Boolean;
---Purpose : Modifies a curve in order to make its bounds confused with
-- given points.
-- Works only on lines and B-Splines, returns True in this case,
-- else returns False.
-- For line considers both bounding points, for B-Splines only
-- specified.
--
-- Warning : Does not check if curve should be reversed
AdjustCurveSegment (me; C3D: Curve from Geom;
P1, P2: Pnt from gp;
U1, U2: Real)
returns Boolean;
---Purpose : Modifies a curve in order to make its bounds confused with
-- given points.
-- Works only on lines and B-Splines.
--
-- For lines works as previous method, B-Splines are segmented
-- at the given values and then are adjusted to the points.
AdjustCurve2d (me; C2D: Curve from Geom2d;
P1, P2: Pnt2d from gp;
take1, take2: Boolean = Standard_True)
returns Boolean;
---Purpose : Modifies a curve in order to make its bounds confused with
-- given points.
-- Works only on lines and B-Splines, returns True in this case,
-- else returns False.
--
-- For line considers both bounding points, for B-Splines only
-- specified.
--
-- Warning : Does not check if curve should be reversed
ConvertToBSpline (me; C: Curve from Geom; first, last: Real; prec: Real)
returns BSplineCurve from Geom;
---Purpose: Converts a curve of any type (only part from first to last)
-- to bspline. The method of conversion depends on the type
-- of original curve:
-- BSpline -> C.Segment(first,last)
-- Bezier and Line -> GeomConvert::CurveToBSplineCurve(C).Segment(first,last)
-- Conic and Other -> Approx_Curve3d(C[first,last],prec,C1,9,1000)
ConvertToBSpline (me; C: Curve from Geom2d; first, last: Real; prec: Real)
returns BSplineCurve from Geom2d;
---Purpose: Converts a curve of any type (only part from first to last)
-- to bspline. The method of conversion depends on the type
-- of original curve:
-- BSpline -> C.Segment(first,last)
-- Bezier and Line -> GeomConvert::CurveToBSplineCurve(C).Segment(first,last)
-- Conic and Other -> Approx_Curve2d(C[first,last],prec,C1,9,1000)
FixKnots (myclass; knots: in out HArray1OfReal from TColStd) returns Boolean;
FixKnots (myclass; knots: in out Array1OfReal from TColStd) returns Boolean;
---Purpose: Fix bspline knots to ensure that there is enough
-- gap between neighbouring values
-- Returns True if something fixed (by shifting knot)
end Curve;
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