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-- File: Adaptor3d_OffsetCurve.cdl
-- Created: Thu Apr 15 11:59:28 1993
-- Author: Bruno DUMORTIER
-- <dub@phylox>
---Copyright: Matra Datavision 1993
class OffsetCurve from Adaptor3d inherits Curve2d from Adaptor2d
---Purpose: Defines an Offset curve.
--
uses
Array1OfReal from TColStd,
Shape from GeomAbs,
CurveType from GeomAbs,
Vec2d from gp,
Pnt2d from gp,
Circ2d from gp,
Elips2d from gp,
Hypr2d from gp,
Parab2d from gp,
Lin2d from gp,
BezierCurve from Geom2d,
BSplineCurve from Geom2d,
HCurve2d from Adaptor2d
raises
NoSuchObject from Standard,
DomainError from Standard,
OutOfRange from Standard,
TypeMismatch from Standard
is
--
-- Methods specific of OffsetCurve
--
Create returns OffsetCurve from Adaptor3d;
---Purpose: The Offset is set to 0.
Create(C : HCurve2d from Adaptor2d) returns OffsetCurve from Adaptor3d;
---Purpose: The curve is loaded. The Offset is set to 0.
Create(C : HCurve2d from Adaptor2d; Offset : Real)
returns OffsetCurve from Adaptor3d;
---Purpose: Creates an OffsetCurve curve.
-- The Offset is set to Offset.
--
Create(C : HCurve2d from Adaptor2d; Offset : Real; WFirst,WLast : Real)
returns OffsetCurve from Adaptor3d;
---Purpose: Create an Offset curve.
-- WFirst,WLast define the bounds of the Offset curve.
Load( me:in out ;S : HCurve2d from Adaptor2d)
---Purpose: Changes the curve. The Offset is reset to 0.
is static;
Load (me : in out ; Offset : Real)
---Purpose: Changes the Offset on the current Curve.
is static;
Load (me : in out ; Offset : Real; WFirst,WLast : Real)
---Purpose: Changes the Offset Curve on the current Curve.
is static;
Curve(me) returns HCurve2d from Adaptor2d
---C++: inline
---C++: return const &
is static;
Offset(me) returns Real
---C++: inline
is static;
--
-- Implementation of Curve2d from Adaptor2d methods
--
--
-- Global methods - Apply to the whole curve.
--
FirstParameter(me) returns Real
---C++: inline
is redefined static;
LastParameter(me) returns Real
---C++: inline
is redefined static;
Continuity(me) returns Shape from GeomAbs
is redefined static;
NbIntervals(me; S : Shape from GeomAbs) returns Integer
---Purpose: If necessary, breaks the curve in intervals of
-- continuity <S>. And returns the number of
-- intervals.
is redefined static;
Intervals(me; 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;
Trim(me; First, Last, Tol : Real) returns HCurve2d from Adaptor2d
---Purpose: Returns a curve equivalent of <me> between
-- parameters <First> and <Last>. <Tol> is used to
-- test for 3d points confusion.
raises
OutOfRange from Standard
---Purpose: If <First> >= <Last>
is redefined static;
IsClosed(me) returns Boolean
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;
Value(me; U : Real) returns Pnt2d from gp
--- Purpose : Computes the point of parameter U on the curve.
is redefined static;
D0 (me; U : Real; P : out Pnt2d from gp)
--- Purpose : Computes the point of parameter U on the curve.
is redefined static;
D1 (me; U : Real; P : out Pnt2d from gp ; V : out Vec2d 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 Pnt2d from gp; V1, V2 : out Vec2d 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;
D3 (me; U : Real; P : out Pnt2d from gp; V1, V2, V3 : out Vec2d from gp)
--- Purpose :
-- Returns the point P of parameter U, the first, the second
-- and the third derivative.
raises
DomainError from Standard
--- Purpose : Raised if the continuity of the current interval
-- is not C3.
is redefined static;
DN (me; U : Real; N : Integer) returns Vec2d from gp
--- Purpose :
-- The returned vector gives the value of the derivative for the
-- order of derivation N.
raises
DomainError from Standard,
--- Purpose : Raised if the continuity of the current interval
-- is not CN.
OutOfRange from Standard
--- Purpose : Raised if N < 1.
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;
--
-- The following methods must be called when GetType returned
-- the corresponding type.
--
Line(me) returns Lin2d from gp
raises
NoSuchObject from Standard
is redefined static;
Circle(me) returns Circ2d from gp
raises
NoSuchObject from Standard
is redefined static;
Ellipse(me) returns Elips2d from gp
raises
NoSuchObject from Standard
is redefined static;
Hyperbola(me) returns Hypr2d from gp
raises
NoSuchObject from Standard
is redefined static;
Parabola(me) returns Parab2d from gp
raises
NoSuchObject from Standard
is redefined static;
Degree(me) returns Integer
raises
NoSuchObject from Standard
is redefined static;
IsRational(me) returns Boolean
raises
NoSuchObject from Standard
is redefined static;
NbPoles(me) returns Integer
raises
NoSuchObject from Standard
is redefined static;
NbKnots(me) returns Integer
raises
NoSuchObject from Standard
is redefined static;
Bezier(me) returns BezierCurve from Geom2d
raises
NoSuchObject from Standard
is redefined static;
BSpline(me) returns BSplineCurve from Geom2d
raises
NoSuchObject from Standard
is redefined static;
fields
myCurve : HCurve2d from Adaptor2d;
myOffset : Real;
myFirst : Real;
myLast : Real;
end OffsetCurve;
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