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-- File: LProp3d_CurveTool.cdl
-- Created: Fri Aug 2 17:14:29 2002
-- Author: Alexander KARTOMIN (akm)
-- <a-kartomin@opencascade.com>
-- NB: This originates from BRepLProp being abstracted of BRep.
---Copyright: Matra Datavision 2002
class CurveTool from LProp3d
uses Vec from gp,
Pnt from gp,
Dir from gp,
HCurve from Adaptor3d
is
Value(myclass; C : HCurve from Adaptor3d; U : Real; P : out Pnt);
---Purpose: Computes the point <P> of parameter <U> on the HCurve <C>.
D1 (myclass; C : HCurve from Adaptor3d;
U : Real; P : out Pnt; V1 : out Vec);
---Purpose: Computes the point <P> and first derivative <V1> of
-- parameter <U> on the HCurve <C>.
D2 (myclass; C : HCurve from Adaptor3d;
U : Real; P : out Pnt; V1, V2 : out Vec);
---Purpose: Computes the point <P>, the first derivative <V1> and second
-- derivative <V2> of parameter <U> on the HCurve <C>.
D3 (myclass; C : HCurve from Adaptor3d;
U : Real; P : out Pnt; V1, V2, V3 : out Vec);
---Purpose: Computes the point <P>, the first derivative <V1>, the
-- second derivative <V2> and third derivative <V3> of
-- parameter <U> on the HCurve <C>.
Continuity(myclass; C : HCurve from Adaptor3d) returns Integer;
---Purpose: returns the order of continuity of the HCurve <C>.
-- returns 1 : first derivative only is computable
-- returns 2 : first and second derivative only are computable.
-- returns 3 : first, second and third are computable.
FirstParameter(myclass; C : HCurve from Adaptor3d) returns Real;
---Purpose: returns the first parameter bound of the HCurve.
--
LastParameter(myclass; C : HCurve from Adaptor3d) returns Real;
---Purpose: returns the last parameter bound of the HCurve.
-- FirstParameter must be less than LastParamenter.
end CurveTool;
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