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-- File: GeomAdaptor_Curve.cdl
-- Created: Tue Sep 1 10:58:10 1992
-- Author: Modelistation
---Copyright: Matra Datavision 1992
class Curve from GeomAdaptor inherits Curve from Adaptor3d
---Purpose: This class provides an interface between the services provided by any
-- curve from the package Geom and those required of the curve by algorithms which use it.
uses Vec from gp,
Pnt from gp,
Circ from gp,
Elips from gp,
Hypr from gp,
Parab from gp,
Lin from gp,
Array1OfReal from TColStd,
Curve from Geom,
BezierCurve from Geom,
BSplineCurve from Geom,
CurveType from GeomAbs,
Shape from GeomAbs,
HCurve from Adaptor3d
raises NoSuchObject from Standard,
ConstructionError from Standard,
OutOfRange from Standard,
DomainError from Standard
is
Create
returns Curve from GeomAdaptor;
---C++: inline
Create(C : Curve from Geom)
returns Curve from GeomAdaptor;
---C++: inline
Create(C : Curve from Geom; UFirst,ULast : Real)
returns Curve from GeomAdaptor
raises
ConstructionError from Standard;
---Purpose: ConstructionError is raised if Ufirst>Ulast
---C++: inline
Load(me : in out; C : Curve from Geom);
---C++: inline
Load(me : in out; C : Curve from Geom; UFirst,ULast : Real)
raises
ConstructionError from Standard;
---Purpose: ConstructionError is raised if Ufirst>Ulast
Curve(me) returns Curve from Geom
---Purpose:
-- Provides a curve inherited from Hcurve from Adaptor.
-- This is inherited to provide easy to use constructors.
---C++: return const&
---C++: inline
is static;
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: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;
Trim(me; First, Last, Tol : Real) returns HCurve from Adaptor3d
---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 Pnt from gp
--- Purpose : Computes the point of parameter U on the curve
is redefined static;
D0 (me; U : Real; P : out Pnt from gp)
--- Purpose : Computes the point of parameter U.
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.
--
-- Warning : On the specific case of BSplineCurve:
-- if the curve is cut in interval of continuity at least C1, the
-- derivatives are computed on the current interval.
-- else the derivatives are computed on the basis curve.
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.
--
-- Warning : On the specific case of BSplineCurve:
-- if the curve is cut in interval of continuity at least C2, the
-- derivatives are computed on the current interval.
-- else the derivatives are computed on the basis curve.
is redefined static;
D3 (me; U : Real; P : out Pnt from gp; V1, V2, V3 : out Vec from gp)
--- Purpose :
-- Returns the point P of parameter U, the first, the second
-- and the third derivative.
--
-- Warning : On the specific case of BSplineCurve:
-- if the curve is cut in interval of continuity at least C3, the
-- derivatives are computed on the current interval.
-- else the derivatives are computed on the basis curve.
is redefined static;
DN (me; U : Real; N : Integer) returns Vec from gp
--- Purpose :
-- The returned vector gives the value of the derivative for the
-- order of derivation N.
-- Warning : On the specific case of BSplineCurve:
-- if the curve is cut in interval of continuity CN, the
-- derivatives are computed on the current interval.
-- else the derivatives are computed on the basis curve.
raises
OutOfRange from Standard
--- Purpose : Raised if N < 1.
is redefined static;
Resolution(me; R3d :Real) returns Real
---Purpose : returns the parametric resolution
is redefined static;
GetType(me) returns CurveType from GeomAbs
---C++: inline
is redefined static;
Line(me) returns Lin from gp
raises
NoSuchObject from Standard
is redefined static;
Circle(me) returns Circ from gp
raises
NoSuchObject from Standard
is redefined static;
Ellipse(me) returns Elips from gp
raises
NoSuchObject from Standard
is redefined static;
Hyperbola(me) returns Hypr from gp
raises
NoSuchObject from Standard
is redefined static;
Parabola(me) returns Parab from gp
raises
NoSuchObject from Standard
is redefined static;
Degree(me) returns Integer
raises
NoSuchObject from Standard
is redefined static;
---Purpose:
-- this should NEVER make a copy
-- of the underlying curve to read
-- the relevant information
--
IsRational(me) returns Boolean
raises
NoSuchObject from Standard
is redefined static;
---Purpose:
-- this should NEVER make a copy
-- of the underlying curve to read
-- the relevant information
--
NbPoles(me) returns Integer
raises
NoSuchObject from Standard
is redefined static;
---Purpose:
-- this should NEVER make a copy
-- of the underlying curve to read
-- the relevant information
--
NbKnots(me) returns Integer
raises
NoSuchObject from Standard
is redefined static;
---Purpose:
-- this should NEVER make a copy
-- of the underlying curve to read
-- the relevant information
--
Bezier(me) returns BezierCurve from Geom
raises
NoSuchObject from Standard
is redefined static;
---Purpose : this will NOT make a copy of the
-- Bezier Curve : If you want to modify
-- the Curve please make a copy yourself
-- Also it will NOT trim the surface to
-- myFirst/Last.
BSpline(me) returns BSplineCurve from Geom
raises
NoSuchObject from Standard
is redefined static;
---Purpose : this will NOT make a copy of the
-- BSpline Curve : If you want to modify
-- the Curve please make a copy yourself
-- Also it will NOT trim the surface to
-- myFirst/Last.
LocalContinuity(me; U1, U2 : Real) returns Shape from GeomAbs
is static private;
fields
myCurve : Curve from Geom ;
myTypeCurve : CurveType from GeomAbs ;
myFirst : Real from Standard ;
myLast : Real from Standard;
friends
class Surface from GeomAdaptor
end Curve;
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