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122 lines
4.8 KiB
Plaintext
Executable File
122 lines
4.8 KiB
Plaintext
Executable File
-- Created on: 1991-04-15
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-- Created by: Philippe DAUTRY
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-- Copyright (c) 1991-1999 Matra Datavision
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-- Copyright (c) 1999-2012 OPEN CASCADE SAS
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--
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-- The content of this file is subject to the Open CASCADE Technology Public
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-- License Version 6.5 (the "License"). You may not use the content of this file
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-- except in compliance with the License. Please obtain a copy of the License
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-- at http://www.opencascade.org and read it completely before using this file.
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--
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-- The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
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-- main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
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--
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-- The Original Code and all software distributed under the License is
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-- distributed on an "AS IS" basis, without warranty of any kind, and the
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-- Initial Developer hereby disclaims all such warranties, including without
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-- limitation, any warranties of merchantability, fitness for a particular
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-- purpose or non-infringement. Please see the License for the specific terms
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-- and conditions governing the rights and limitations under the License.
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class QualifiedCurve from Geom2dGcc
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---Purpose: Describes functions for building a qualified 2D curve.
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-- A qualified 2D curve is a curve with a qualifier which
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-- specifies whether the solution of a construction
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-- algorithm using the qualified curve (as an argument):
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-- - encloses the curve, or
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-- - is enclosed by the curve, or
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-- - is built so that both the curve and it are external to one another, or
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-- - is undefined (all solutions apply).
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-- inherits Entity from Standard
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uses Position from GccEnt,
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Curve from Geom2dAdaptor
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-- raises
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is
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Create(Curve : Curve from Geom2dAdaptor;
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Qualifier : Position from GccEnt )
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returns QualifiedCurve from Geom2dGcc;
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---Purpose: Constructs a qualified curve by assigning the qualifier
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-- Qualifier to the curve Curve. Qualifier may be:
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-- - GccEnt_enclosing if the solution of a construction
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-- algorithm using the qualified curve encloses the curve, or
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-- - GccEnt_enclosed if the solution is enclosed by the curve, or
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-- - GccEnt_outside if both the solution and the curve
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-- are external to one another, or
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-- - GccEnt_unqualified if all solutions apply.
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-- Note: The interior of a curve is defined as the left-hand
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-- side of the curve in relation to its orientation.
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-- Warning
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-- Curve is an adapted curve, i.e. an object which is an interface between:
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-- - the services provided by a 2D curve from the package Geom2d,
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-- - and those required on the curve by a computation algorithm.
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-- The adapted curve is created in the following way:
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-- Handle(Geom2d_Curve) mycurve = ... ;
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-- Geom2dAdaptor_Curve Curve ( mycurve ) ;
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-- The qualified curve is then constructed with this object:
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-- GccEnt_Position myQualif = GccEnt_outside ;
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-- Geom2dGcc_QualifiedCurve myQCurve ( Curve, myQualif );
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-- is private;
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Qualified(me) returns Curve from Geom2dAdaptor
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is static;
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---Purpose: Returns a 2D curve to which the qualifier is assigned.
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-- Warning
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-- The returned curve is an adapted curve, i.e. an object
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-- which is an interface between:
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-- - the services provided by a 2D curve from the package Geom2d,
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-- - and those required on the curve by a computation algorithm.
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-- The Geom2d curve on which the adapted curve is
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-- based can be obtained in the following way:
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-- myQualifiedCurve = ... ;
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-- Geom2dAdaptor_Curve myAdaptedCurve = myQualifiedCurve.Qualified();
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-- Handle(Geom2d_Curve) = myAdaptedCurve.Curve();
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Qualifier(me) returns Position from GccEnt
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is static;
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---Purpose: Returns
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-- - the qualifier of this qualified curve if it is enclosing,
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-- enclosed or outside, or
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-- - GccEnt_noqualifier if it is unqualified.
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IsUnqualified(me) returns Boolean from Standard
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is static;
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---Purpose: Returns true if the solution is unqualified and false in the other cases.
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IsEnclosing(me) returns Boolean from Standard
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is static;
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---Purpose: It returns true if the solution is Enclosing the Curv and false in
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-- the other cases.
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IsEnclosed(me) returns Boolean from Standard
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is static;
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---Purpose: It returns true if the solution is Enclosed in the Curv and false in
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-- the other cases.
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IsOutside(me) returns Boolean from Standard
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is static;
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---Purpose: It returns true if the solution is Outside the Curv and false in
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-- the other cases.
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fields
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TheQualifier : Position from GccEnt;
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TheQualified : Curve from Geom2dAdaptor;
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-- friends
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-- Unqualified(Obj : Curve3) from Geom2dGcc,
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-- Enclosing (Obj : Curve3) from Geom2dGcc,
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-- Enclosed (Obj : Curve3) from Geom2dGcc,
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-- Outside (Obj : Curve3) from Geom2dGcc
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end QualifiedCurve;
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