mirror of
https://git.dev.opencascade.org/repos/occt.git
synced 2025-04-05 18:16:23 +03:00
be09e9bf18
Additional constructors were implemented into classes: GeomConvert_ApproxCurve GeomConvert_ApproxSurface Geom2dConvert_ApproxCurve
94 lines
3.7 KiB
Plaintext
94 lines
3.7 KiB
Plaintext
-- Created on: 1997-09-11
|
|
-- Created by: Roman BORISOV
|
|
-- Copyright (c) 1997-1999 Matra Datavision
|
|
-- Copyright (c) 1999-2014 OPEN CASCADE SAS
|
|
--
|
|
-- This file is part of Open CASCADE Technology software library.
|
|
--
|
|
-- This library is free software; you can redistribute it and/or modify it under
|
|
-- the terms of the GNU Lesser General Public License version 2.1 as published
|
|
-- by the Free Software Foundation, with special exception defined in the file
|
|
-- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
|
|
-- distribution for complete text of the license and disclaimer of any warranty.
|
|
--
|
|
-- Alternatively, this file may be used under the terms of Open CASCADE
|
|
-- commercial license or contractual agreement.
|
|
|
|
class ApproxCurve from Geom2dConvert
|
|
---Purpose: A framework to convert a 2D curve to a BSpline.
|
|
-- This is done by approximation within a given tolerance.
|
|
|
|
uses
|
|
Curve from Geom2d,
|
|
BSplineCurve from Geom2d,
|
|
HCurve2d from Adaptor2d,
|
|
Shape from GeomAbs,
|
|
OutOfRange from Standard
|
|
|
|
raises OutOfRange from Standard
|
|
|
|
is
|
|
|
|
Create (Curve: Curve from Geom2d;
|
|
Tol2d: Real;
|
|
Order: Shape from GeomAbs;
|
|
MaxSegments: Integer;
|
|
MaxDegree: Integer) returns ApproxCurve from Geom2dConvert;
|
|
---Purpose: Constructs an approximation framework defined by
|
|
-- - the 2D conic Curve
|
|
-- - the tolerance value Tol2d
|
|
-- - the degree of continuity Order
|
|
-- - the maximum number of segments allowed MaxSegments
|
|
-- - the highest degree MaxDegree which the
|
|
-- polynomial defining the BSpline is allowed to have.
|
|
|
|
Create (Curve: HCurve2d from Adaptor2d;
|
|
Tol2d: Real;
|
|
Order: Shape from GeomAbs;
|
|
MaxSegments: Integer;
|
|
MaxDegree: Integer) returns ApproxCurve from Geom2dConvert;
|
|
---Purpose: Constructs an approximation framework defined by
|
|
-- - the 2D conic Curve
|
|
-- - the tolerance value Tol2d
|
|
-- - the degree of continuity Order
|
|
-- - the maximum number of segments allowed MaxSegments
|
|
-- - the highest degree MaxDegree which the
|
|
-- polynomial defining the BSpline is allowed to have.
|
|
|
|
Curve(me) returns BSplineCurve from Geom2d;
|
|
---Purpose: Returns the 2D BSpline curve resulting from the
|
|
-- approximation algorithm.
|
|
|
|
IsDone(me) returns Boolean from Standard;
|
|
---Purpose: returns Standard_True if the approximation has
|
|
-- been done with within requiered tolerance
|
|
|
|
HasResult(me) returns Boolean;
|
|
---Purpose: returns Standard_True if the approximation did come out
|
|
-- with a result that is not NECESSARELY within the required tolerance
|
|
|
|
MaxError(me) returns Real from Standard;
|
|
---Purpose: Returns the greatest distance between a point on the
|
|
-- source conic and the BSpline curve resulting from the
|
|
-- approximation. (>0 when an approximation
|
|
-- has been done, 0 if no approximation)
|
|
|
|
Dump(me; o: in out OStream);
|
|
---Purpose: Print on the stream o information about the object
|
|
|
|
Approximate(me: in out;
|
|
theCurve: HCurve2d from Adaptor2d;
|
|
theTol3d: Real;
|
|
theOrder: Shape from GeomAbs;
|
|
theMaxSegments: Integer;
|
|
theMaxDegree: Integer) is private;
|
|
---Purpose: Converts a curve to B-spline
|
|
|
|
fields
|
|
myIsDone : Boolean from Standard;
|
|
myHasResult : Boolean from Standard;
|
|
myBSplCurve : BSplineCurve from Geom2d;
|
|
myMaxError : Real from Standard;
|
|
|
|
end ApproxCurve;
|