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-- File: GeomFill_SnglrFunc.cdl
-- Created: Thu Feb 26 10:42:27 1998
-- Author: Roman BORISOV
-- <rbv@ecolox.nnov.matra-dtv.fr>
---Copyright: Matra Datavision 1998
private class SnglrFunc from GeomFill inherits Curve from Adaptor3d
---Purpose: to represent function C'(t)^C''(t)
uses
HCurve from Adaptor3d,
Shape from GeomAbs,
CurveType from GeomAbs,
Array1OfReal from TColStd,
Pnt from gp,
Vec from gp
raises
OutOfRange from Standard,
DomainError from Standard
is
Create(HC: HCurve from Adaptor3d)
returns SnglrFunc;
SetRatio(me:in out; Ratio : Real)
is static;
FirstParameter(me) returns Real
is redefined static;
LastParameter(me) returns Real
is redefined static;
NbIntervals(me: in out; S : Shape from GeomAbs) returns Integer
---Purpose: Returns the number of intervals for continuity
-- <S>. May be one if Continuity(me) >= <S>
is redefined static;
Intervals(me: in out; T : in out Array1OfReal from TColStd;
S : Shape from GeomAbs)
---Purpose: Stores in <T> the parameters bounding the intervals
-- of continuity <S>.
--
-- The array must provide enough room to accomodate
-- for the parameters. i.e. T.Length() > NbIntervals()
raises
OutOfRange from Standard
is redefined static;
Value(me; U : Real) returns Pnt from gp
--- Purpose : Computes the point of parameter U on the curve.
is redefined static;
IsPeriodic(me) returns Boolean
is redefined static;
Period(me) returns Real
raises
DomainError from Standard -- if the curve is not periodic
is redefined static;
D0 (me; U : Real; P : out Pnt from gp)
--- Purpose : Computes the point of parameter U on the curve.
is redefined static;
D1 (me; U : Real; P : out Pnt from gp ; V : out Vec from gp)
--- Purpose : Computes the point of parameter U on the curve with its
-- first derivative.
raises
DomainError from Standard
--- Purpose : Raised if the continuity of the current interval
-- is not C1.
is redefined static;
D2 (me; U : Real; P : out Pnt from gp; V1, V2 : out Vec from gp)
--- Purpose :
-- Returns the point P of parameter U, the first and second
-- derivatives V1 and V2.
raises
DomainError from Standard
--- Purpose : Raised if the continuity of the current interval
-- is not C2.
is redefined static;
Resolution(me; R3d : Real) returns Real
---Purpose : Returns the parametric resolution corresponding
-- to the real space resolution <R3d>.
is redefined static;
GetType(me) returns CurveType from GeomAbs
---Purpose: Returns the type of the curve in the current
-- interval : Line, Circle, Ellipse, Hyperbola,
-- Parabola, BezierCurve, BSplineCurve, OtherCurve.
is redefined static;
fields
myHCurve: HCurve from Adaptor3d;
ratio : Real;
end SnglrFunc;
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