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-- File: Adaptor3d_IsoCurve.cdl
-- Created: Thu Mar 11 17:15:21 1993
-- Author: Isabelle GRIGNON
-- <isg@bravox>
-- modified 01-1994 by rob (time comsumption)
---Copyright: Matra Datavision 1993
class IsoCurve from Adaptor3d inherits Curve from Adaptor3d
---Purpose: Defines an isoparametric curve on a surface. The
-- type of isoparametric curve (U or V) is defined
-- with the enumeration IsoType from GeomAbs if
-- NoneIso is given an error is raised.
uses
Array1OfReal from TColStd,
IsoType from GeomAbs,
Shape from GeomAbs,
CurveType from GeomAbs,
Vec from gp,
Pnt from gp,
Circ from gp,
Elips from gp,
Hypr from gp,
Parab from gp,
Lin from gp,
BezierCurve from Geom,
BSplineCurve from Geom,
HCurve from Adaptor3d,
HSurface from Adaptor3d
raises
NoSuchObject from Standard,
OutOfRange from Standard,
DomainError from Standard
is
--
-- Methods specific of IsoCurve
--
Create returns IsoCurve from Adaptor3d;
---Purpose: The iso is set to NoneIso.
Create(S : HSurface from Adaptor3d) returns IsoCurve from Adaptor3d;
---Purpose: The surface is loaded. The iso is set to NoneIso.
Create(S : HSurface from Adaptor3d;
Iso : IsoType from GeomAbs; Param : Real)
returns IsoCurve from Adaptor3d;
---Purpose: Creates an IsoCurve curve. Iso defines the
-- type (isoU or isoU) Param defines the value of
-- the iso. The bounds of the iso are the bounds
-- of the surface.
Create(S : HSurface from Adaptor3d;
Iso : IsoType from GeomAbs; Param : Real; WFirst,WLast : Real)
returns IsoCurve from Adaptor3d;
---Purpose: Create an IsoCurve curve. Iso defines the type
-- (isoU or isov). Param defines the value of the
-- iso. WFirst,WLast define the bounds of the iso.
Load( me:in out ;S : HSurface from Adaptor3d)
---Purpose: Changes the surface. The iso is reset to
-- NoneIso.
is static;
Load (me : in out ; Iso : IsoType from GeomAbs; Param : Real)
---Purpose: Changes the iso on the current surface.
is static;
Load (me : in out ;
Iso : IsoType from GeomAbs; Param : Real; WFirst,WLast : Real)
---Purpose: Changes the iso on the current surface.
is static;
Surface(me) returns HSurface from Adaptor3d
---C++: inline
---C++: return const &
is static;
Iso(me) returns IsoType from GeomAbs
---C++: inline
is static;
Parameter(me) returns Real
---C++: inline
is static;
--
-- Implementation of Curve from Adaptor3d 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: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 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;
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 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 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
raises
NoSuchObject from Standard
is redefined static;
BSpline(me) returns BSplineCurve from Geom
raises
NoSuchObject from Standard
is redefined static;
fields
mySurface : HSurface from Adaptor3d;
myIso : IsoType from GeomAbs;
myFirst : Real;
myLast : Real;
myParameter : Real;
end IsoCurve;
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