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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.
110 lines
4.2 KiB
Plaintext
110 lines
4.2 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 MakeArcOfCircle from GC inherits Root from GC
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---Purpose: Implements construction algorithms for an
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-- arc of circle in 3D space. The result is a Geom_TrimmedCurve curve.
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-- A MakeArcOfCircle object provides a framework for:
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-- - defining the construction of the arc of circle,
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-- - implementing the construction algorithm, and
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-- - consulting the results. In particular, the
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-- Value function returns the constructed arc of circle.
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uses Pnt from gp,
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Circ from gp,
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Dir from gp,
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Ax1 from gp,
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Vec from gp,
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Real from Standard,
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TrimmedCurve from Geom
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raises NotDone from StdFail
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is
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Create(Circ : Circ from gp ;
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Alpha1, Alpha2 : Real from Standard ;
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Sense : Boolean from Standard ) returns MakeArcOfCircle;
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---Purpose: Make an arc of circle (TrimmedCurve from Geom) from
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-- a circle between two angles Alpha1 and Alpha2
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-- given in radiians.
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Create(Circ : Circ from gp ;
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P : Pnt from gp ;
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Alpha : Real from Standard ;
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Sense : Boolean from Standard ) returns MakeArcOfCircle;
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---Purpose: Make an arc of circle (TrimmedCurve from Geom) from
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-- a circle between point <P> and the angle Alpha
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-- given in radians.
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Create(Circ : Circ from gp ;
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P1 : Pnt from gp ;
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P2 : Pnt from gp ;
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Sense : Boolean from Standard ) returns MakeArcOfCircle;
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---Purpose: Make an arc of circle (TrimmedCurve from Geom) from
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-- a circle between two points P1 and P2.
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Create(P1 : Pnt from gp ;
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P2 : Pnt from gp ;
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P3 : Pnt from gp )
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returns MakeArcOfCircle;
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---Purpose: Make an arc of circle (TrimmedCurve from Geom) from
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-- three points P1,P2,P3 between two points P1 and P2.
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Create(P1 : Pnt from gp ;
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V : Vec from gp ;
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P2 : Pnt from gp )
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returns MakeArcOfCircle;
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---Purpose: Make an arc of circle (TrimmedCurve from Geom) from
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-- two points P1,P2 and the tangente to the solution at
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-- the point P1.
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-- The orientation of the arc is:
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-- - the sense determined by the order of the points P1, P3 and P2;
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-- - the sense defined by the vector V; or
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-- - for other syntaxes:
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-- - the sense of Circ if Sense is true, or
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-- - the opposite sense if Sense is false.
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-- Note: Alpha1, Alpha2 and Alpha are angle values, given in radians.
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-- Warning
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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_ConfusedPoints if:
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-- - any 2 of the 3 points P1, P2 and P3 are coincident, or
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-- - P1 and P2 are coincident; or
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-- - gce_IntersectionError if:
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-- - P1, P2 and P3 are collinear and not coincident, or
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-- - the vector defined by the points P1 and
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-- P2 is collinear with the vector V.
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Value(me) returns TrimmedCurve from Geom
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raises NotDone
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is static;
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---Purpose: Returns the constructed arc of circle.
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-- Exceptions StdFail_NotDone if no arc of circle is constructed.
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---C++: return const&
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Operator(me) returns TrimmedCurve from Geom
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is static;
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---C++: return const&
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---C++: alias "Standard_EXPORT operator Handle_Geom_TrimmedCurve() const;"
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fields
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TheArc : TrimmedCurve from Geom;
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--The solution from Geom.
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end MakeArcOfCircle;
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