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License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast Wrong license statements corrected in several files. Copyright and license statements added in XSD and GLSL files. Copyright year updated in some files. Obsolete documentation files removed from DrawResources.
146 lines
4.6 KiB
Plaintext
146 lines
4.6 KiB
Plaintext
-- Created on: 1991-07-17
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-- Created by: Isabelle GRIGNON
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-- Copyright (c) 1991-1999 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 under
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-- the terms of the GNU Lesser General Public License 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 FunctionAllRoots from math
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---Purpose: This algorithm uses a sample of the function to find
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-- all intervals on which the function is null, and afterwards
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-- uses the FunctionRoots algorithm to find the points
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-- where the function is null outside the "null intervals".
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-- Knowledge of the derivative is required.
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uses FunctionSample from math,
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FunctionRoots from math,
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FunctionWithDerivative from math,
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SequenceOfReal from TColStd,
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SequenceOfInteger from TColStd,
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OStream from Standard
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raises OutOfRange from Standard,
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NotDone from StdFail,
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NumericError from Standard
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is
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Create(F: in out FunctionWithDerivative from math;
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S: FunctionSample from math;
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EpsX, EpsF, EpsNul: Real)
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---Purpose: The algorithm uses the sample to find intervals on which
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-- the function is null. An interval is found if, for at least
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-- two consecutive points of the sample, Ui and Ui+1, we get
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-- |F(Ui)|<=EpsNul and |F(Ui+1)|<=EpsNul. The real bounds of
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-- an interval are computed with the FunctionRoots.
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-- algorithm.
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-- Between two intervals, the roots of the function F are
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-- calculated using the FunctionRoots algorithm.
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returns FunctionAllRoots
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raises NumericError from Standard;
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IsDone(me)
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---Purpose: Returns True if the computation has been done successfully.
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---C++: inline
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returns Boolean
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is static;
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NbIntervals(me)
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---Purpose: Returns the number of intervals on which the function
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-- is Null.
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-- An exception is raised if IsDone returns False.
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---C++: inline
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returns Integer
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raises NotDone from StdFail
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is static;
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GetInterval(me; Index: Integer; A,B: out Real)
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---Purpose: Returns the interval of parameter of range Index.
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-- An exception is raised if IsDone returns False;
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-- An exception is raised if Index<=0 or Index >Nbintervals.
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---C++: inline
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raises NotDone from StdFail, OutOfRange from Standard
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is static;
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GetIntervalState(me; Index: Integer; IFirst, ILast: out Integer)
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---Purpose: returns the State Number associated to the interval Index.
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-- An exception is raised if IsDone returns False;
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-- An exception is raised if Index<=0 or Index >Nbintervals.
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---C++: inline
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raises NotDone from StdFail, OutOfRange from Standard
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is static;
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NbPoints(me)
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---Purpose: returns the number of points where the function is Null.
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-- An exception is raised if IsDone returns False.
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---C++: inline
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returns Integer
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raises NotDone from StdFail
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is static;
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GetPoint(me; Index: Integer)
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---Purpose: Returns the parameter of the point of range Index.
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-- An exception is raised if IsDone returns False;
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-- An exception is raised if Index<=0 or Index >NbPoints.
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---C++: inline
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returns Real
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raises NotDone from StdFail, OutOfRange from Standard
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is static;
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GetPointState(me; Index: Integer)
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---Purpose: returns the State Number associated to the point Index.
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-- An exception is raised if IsDone returns False;
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-- An exception is raised if Index<=0 or Index >Nbintervals.
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---C++: inline
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returns Integer
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raises NotDone from StdFail, OutOfRange from Standard
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is static;
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Dump(me; o: in out OStream)
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---Purpose: Prints on the stream o information on the current state
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-- of the object.
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is static;
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fields
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done: Boolean;
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pdeb: SequenceOfReal from TColStd;
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pfin: SequenceOfReal from TColStd;
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piso: SequenceOfReal from TColStd;
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ideb: SequenceOfInteger from TColStd;
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ifin: SequenceOfInteger from TColStd;
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iiso: SequenceOfInteger from TColStd;
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end FunctionAllRoots;
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