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The copying permission statements at the beginning of source files updated to refer to LGPL. Copyright dates extended till 2014 in advance.
120 lines
4.7 KiB
Plaintext
120 lines
4.7 KiB
Plaintext
-- Created on: 1992-09-28
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-- Created by: Remi GILET
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-- Copyright (c) 1992-1999 Matra Datavision
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-- Copyright (c) 1999-2014 OPEN CASCADE SAS
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--
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-- This file is part of Open CASCADE Technology software library.
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--
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-- This library is free software; you can redistribute it and / or modify it
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-- under the terms of the GNU Lesser General Public version 2.1 as published
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-- by the Free Software Foundation, with special exception defined in the file
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-- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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-- distribution for complete text of the license and disclaimer of any warranty.
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--
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-- Alternatively, this file may be used under the terms of Open CASCADE
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-- commercial license or contractual agreement.
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class MakeCircle from GCE2d inherits Root from GCE2d
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---Purpose : This class implements the following algorithms used
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-- to create Cirlec from Geom2d.
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--
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-- * Create a Circle parallel to another and passing
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-- though a point.
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-- * Create a Circle parallel to another at the distance
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-- Dist.
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-- * Create a Circle passing through 3 points.
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-- * Create a Circle with its center and the normal of its
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-- plane and its radius.
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-- * Create a Circle with its axis and radius.
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uses Pnt2d from gp,
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Circ2d from gp,
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Ax2d from gp,
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Ax22d from gp,
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Circle from Geom2d,
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Real from Standard
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raises NotDone from StdFail
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is
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Create (C : Circ2d from gp) returns MakeCircle;
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--- Purpose : creates a circle from a non persistent one.
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Create (A : Ax2d from gp ;
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Radius : Real from Standard ;
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Sense : Boolean from Standard = Standard_True) returns MakeCircle;
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--- Purpose :
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-- A is the "XAxis" of the circle which defines the origin
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-- of parametrization.
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-- It is not forbidden to create a circle with Radius = 0.0
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-- The status is "NegativeRadius" if Radius < 0.
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Create (A : Ax22d from gp ;
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Radius : Real from Standard ) returns MakeCircle;
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--- Purpose :
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-- A is the local coordinate system of the circle which defines
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-- the origin of parametrization.
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-- It is not forbidden to create a circle with Radius = 0.0
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-- The status is "NegativeRadius" if Radius < 0.
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Create(Circ : Circ2d from gp ;
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Dist : Real from Standard) returns MakeCircle;
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---Purpose : Make a Circle from Geom2d <TheCirc> parallel to another
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-- Circ <Circ> with a distance <Dist>.
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-- If Dist is greater than zero the result is enclosing
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-- the circle <Circ>, else the result is enclosed by the
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-- circle <Circ>.
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Create(Circ : Circ2d from gp;
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Point : Pnt2d from gp) returns MakeCircle;
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---Purpose : Make a Circle from Geom2d <TheCirc> parallel to another
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-- Circ <Circ> and passing through a Pnt <Point>.
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Create(P1,P2,P3 : Pnt2d from gp) returns MakeCircle;
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---Purpose : Make a Circ from gp <TheCirc> passing through 3
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-- Pnt2d <P1>,<P2>,<P3>.
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Create(P : Pnt2d from gp ;
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Radius : Real from Standard ;
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Sense : Boolean from Standard = Standard_True) returns MakeCircle;
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---Purpose : Make a Circ from geom2d <TheCirc> by its center an radius.
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Create(Center : Pnt2d from gp ;
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Point : Pnt2d from gp ;
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Sense : Boolean from Standard = Standard_True)
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returns MakeCircle;
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---Purpose : Makes a Circle from geom2d <TheCirc> with its center
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-- <Center> and a point giving the radius.
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-- If Sense is true the local coordinate system of
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-- the solution is direct and non direct in the other case.
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-- Warning
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-- The MakeCircle class does not prevent the
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-- construction of a circle with a null radius.
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-- If an error occurs (that is, when IsDone returns
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-- false), the Status function returns:
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-- - gce_NegativeRadius if Radius is less than 0.0, or
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-- - gce_IntersectionError if points P1, P2 and P3
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-- are collinear and the three are not coincident.
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Value(me) returns Circle from Geom2d
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raises NotDone
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is static;
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---C++: return const&
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---Purpose: Returns the constructed circle.
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-- Exceptions StdFail_NotDone if no circle is constructed.
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Operator(me) returns Circle from Geom2d
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is static;
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---C++: return const&
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---C++: alias "Standard_EXPORT operator Handle_Geom2d_Circle() const;"
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fields
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TheCircle : Circle from Geom2d;
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--The solution from Geom2d.
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end MakeCircle;
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