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-- File: BRepAdaptor_Curve.cdl
-- Created: Fri Feb 19 12:04:59 1993
-- Author: Remi LEQUETTE
-- <rle@phylox>
---Copyright: Matra Datavision 1993
class Curve from BRepAdaptor inherits Curve from Adaptor3d
---Purpose: The Curve from BRepAdaptor allows to use an Edge
-- of the BRep topology like a 3D curve.
--
-- It has the methods the class Curve from Adaptor3d.
--
-- It is created or Initialized with an Edge. It
-- takes into account local coordinate systems. If
-- the Edge has a 3D curve it is use with priority.
-- If the edge has no 3D curve one of the curves on
-- surface is used. It is possible to enforce using a
-- curve on surface by creating or initialising with
-- an Edge and a Face.
uses
Edge from TopoDS,
Face from TopoDS,
CurveType from GeomAbs,
Shape from GeomAbs,
HCurve from Adaptor3d,
Curve from GeomAdaptor,
CurveOnSurface from Adaptor3d,
HCurveOnSurface from Adaptor3d,
BezierCurve from Geom,
BSplineCurve from Geom,
Array1OfReal from TColStd,
Trsf from gp,
Pnt from gp,
Vec from gp,
Circ from gp,
Elips from gp,
Hypr from gp,
Parab from gp,
Lin from gp
raises
NullObject from Standard,
DomainError from Standard,
OutOfRange from Standard,
NoSuchObject from Standard
is
Create returns Curve from BRepAdaptor;
---Purpose: Creates an undefined Curve with no Edge loaded.
Create(E : Edge from TopoDS) returns Curve from BRepAdaptor;
---Purpose: Creates a Curve to acces to the geometry of edge
-- <E>.
Create(E : Edge from TopoDS; F : Face from TopoDS)
returns Curve from BRepAdaptor;
---Purpose: Creates a Curve to acces to the geometry of edge
-- <E>. The geometry will be computed using the
-- parametric curve of <E> on the face <F>. An Error
-- is raised if the edge does not have a pcurve on
-- the face.
Initialize(me : in out; E : Edge from TopoDS)
---Purpose: Sets the Curve <me> to acces to the geometry of
-- edge <E>.
is static;
Initialize(me : in out; E : Edge from TopoDS; F : Face from TopoDS)
---Purpose: Sets the Curve <me> to acces to the geometry of
-- edge <E>. The geometry will be computed using the
-- parametric curve of <E> on the face <F>. An Error
-- is raised if the edge does not have a pcurve on
-- the face.
raises DomainError from Standard
is static;
Trsf(me) returns Trsf from gp
---Purpose: Returns the coordinate system of the curve.
---C++: return const &
is static;
Is3DCurve(me) returns Boolean
---Purpose: Returns True if the edge geometry is computed from
-- a 3D curve.
is static;
IsCurveOnSurface(me) returns Boolean
---Purpose: Returns True if the edge geometry is computed from
-- a pcurve on a surface.
is static;
Curve(me) returns Curve from GeomAdaptor
---Purpose: Returns the Curve of the edge.
---C++: return const &
is static;
CurveOnSurface(me) returns CurveOnSurface from Adaptor3d
---Purpose: Returns the CurveOnSurface of the edge.
---C++: return const &
is static;
Edge(me) returns Edge from TopoDS
---Purpose: Returns the edge.
--
---C++: return const &
is static;
Tolerance(me) returns Real
---Purpose: Returns the edge tolerance.
--
is static;
--
-- Methods of Curve from GeomAdaptor.
--
FirstParameter(me) returns Real
is redefined static;
LastParameter(me) returns Real
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.
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;
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.
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 Vec 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
is redefined static;
GetType(me) returns CurveType from GeomAbs
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;
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 Geom
---Purpose:
-- Warning :
-- This will make a copy of the Bezier Curve
-- since it applies to it myTsrf . Be carefull when
-- using this method
raises
NoSuchObject from Standard
is redefined static;
BSpline(me) returns BSplineCurve from Geom
---Purpose:
-- Warning :
-- This will make a copy of the BSpline Curve
-- since it applies to it myTsrf . Be carefull when
-- using this method
raises
NoSuchObject from Standard
is redefined static;
fields
myTrsf : Trsf from gp;
myCurve : Curve from GeomAdaptor;
myConSurf : HCurveOnSurface from Adaptor3d;
myEdge : Edge from TopoDS;
end Curve;
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