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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.
287 lines
10 KiB
Plaintext
287 lines
10 KiB
Plaintext
-- Created on: 1998-12-14
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-- Created by: Joelle CHAUVET
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-- Copyright (c) 1998-1999 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 NSections from GeomFill inherits SectionLaw from GeomFill
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---Purpose: Define a Section Law by N Sections
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uses
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Curve from Geom,
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SequenceOfCurve from TColGeom,
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BSplineSurface from Geom,
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BSplineCurve from Geom,
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Function from Law,
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Shape from GeomAbs,
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Pnt from gp,
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Array1OfPnt from TColgp,
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Array1OfVec from TColgp,
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Array1OfInteger from TColStd,
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Array1OfReal from TColStd,
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SequenceOfReal from TColStd,
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SequenceOfTrsf from GeomFill
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raises
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OutOfRange
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is
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Create(NC : SequenceOfCurve from TColGeom)
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---Purpose: Make a SectionLaw with N Curves.
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returns NSections from GeomFill;
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Create(NC : SequenceOfCurve from TColGeom;
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NP : SequenceOfReal from TColStd)
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---Purpose: Make a SectionLaw with N Curves and N associated parameters.
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returns NSections from GeomFill;
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Create(NC : SequenceOfCurve from TColGeom;
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NP : SequenceOfReal from TColStd;
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UF, UL : Real from Standard)
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---Purpose: Make a SectionLaw with N Curves and N associated parameters.
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-- UF and UL are the parametric bounds of the NSections
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returns NSections from GeomFill;
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Create(NC : SequenceOfCurve from TColGeom;
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NP : SequenceOfReal from TColStd;
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UF, UL, VF, VL : Real from Standard)
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---Purpose: Make a SectionLaw with N Curves and N associated parameters.
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-- UF and UL are the parametric bounds of the NSections
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-- VF and VL are the parametric bounds of the path
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returns NSections from GeomFill;
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Create(NC : SequenceOfCurve from TColGeom;
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Trsfs : SequenceOfTrsf from GeomFill;
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NP : SequenceOfReal from TColStd;
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UF, UL, VF, VL : Real from Standard;
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Surf : BSplineSurface from Geom)
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---Purpose: Make a SectionLaw with N Curves and N associated parameters.
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-- UF and UL are the parametric bounds of the NSections
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-- VF and VL are the parametric bounds of the path
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-- UF and UL are the parametric bounds of the NSections
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-- Surf is a reference surface used by BRepFill_NSections
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returns NSections from GeomFill;
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--
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--========== To compute Sections and derivatives Sections
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--
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D0(me : mutable;
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Param: Real;
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Poles : out Array1OfPnt from TColgp;
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Weigths : out Array1OfReal from TColStd)
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---Purpose: compute the section for v = param
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returns Boolean is redefined;
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D1(me : mutable;
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Param: Real;
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Poles : out Array1OfPnt from TColgp;
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DPoles : out Array1OfVec from TColgp;
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Weigths : out Array1OfReal from TColStd;
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DWeigths : out Array1OfReal from TColStd)
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---Purpose: compute the first derivative in v direction of the
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-- section for v = param
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-- Warning : It used only for C1 or C2 aproximation
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returns Boolean
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is redefined;
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D2(me : mutable;
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Param: Real;
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Poles : out Array1OfPnt from TColgp;
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DPoles : out Array1OfVec from TColgp;
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D2Poles : out Array1OfVec from TColgp;
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Weigths : out Array1OfReal from TColStd;
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DWeigths : out Array1OfReal from TColStd;
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D2Weigths : out Array1OfReal from TColStd)
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---Purpose: compute the second derivative in v direction of the
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-- section for v = param
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-- Warning : It used only for C2 aproximation
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returns Boolean
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is redefined;
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SetSurface(me: mutable; RefSurf: BSplineSurface from Geom)
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---Purpose: Sets the reference surface
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--
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;
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ComputeSurface(me: mutable)
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---Purpose: Computes the surface
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--
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;
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BSplineSurface(me)
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---Purpose: give if possible an bspline Surface, like iso-v are the
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-- section. If it is not possible this methode have to
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-- get an Null Surface. Is it the default implementation.
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returns BSplineSurface from Geom
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is redefined;
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SectionShape(me; NbPoles : out Integer from Standard;
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NbKnots : out Integer from Standard;
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Degree : out Integer from Standard)
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---Purpose: get the format of an section
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is redefined;
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Knots(me; TKnots: out Array1OfReal from TColStd)
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---Purpose: get the Knots of the section
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is redefined;
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Mults(me; TMults: out Array1OfInteger from TColStd)
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---Purpose: get the Multplicities of the section
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is redefined;
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IsRational(me)
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---Purpose: Returns if the sections are rationnal or not
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returns Boolean is redefined;
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IsUPeriodic(me)
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---Purpose: Returns if the sections are periodic or not
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returns Boolean is redefined;
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IsVPeriodic(me)
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---Purpose: Returns if the law isperiodic or not
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returns Boolean is redefined;
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--
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-- =================== Management of continuity ===================
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--
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NbIntervals(me; S : Shape from GeomAbs)
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---Purpose: Returns the number of intervals for continuity
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-- <S>.
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-- May be one if Continuity(me) >= <S>
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returns Integer is redefined;
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Intervals(me; T : in out Array1OfReal from TColStd;
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S : Shape from GeomAbs)
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---Purpose: Stores in <T> the parameters bounding the intervals
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-- of continuity <S>.
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--
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-- The array must provide enough room to accomodate
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-- for the parameters. i.e. T.Length() > NbIntervals()
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raises
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OutOfRange from Standard
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is redefined;
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SetInterval(me: mutable; First, Last: Real from Standard)
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---Purpose: Sets the bounds of the parametric interval on
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-- the function
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-- This determines the derivatives in these values if the
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-- function is not Cn.
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is redefined;
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GetInterval(me; First, Last: out Real from Standard)
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---Purpose: Gets the bounds of the parametric interval on
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-- the function
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is redefined;
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GetDomain(me; First, Last: out Real from Standard)
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---Purpose: Gets the bounds of the function parametric domain.
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-- Warning: This domain it is not modified by the
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-- SetValue method
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is redefined;
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-- ===================== To help computation of Tolerance ======
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-- Evaluation of error, in 2d space, or on rational function, is
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-- difficult. The following methods can help the approximation to
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-- make good evaluation and use good tolerances.
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--
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-- It is not necessary for the following informations to be very
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-- precise. A fast evaluation is sufficient.
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GetTolerance(me;
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BoundTol, SurfTol, AngleTol : Real;
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Tol3d : out Array1OfReal)
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---Purpose: Returns the tolerances associated at each poles to
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-- reach in approximation, to satisfy: BoundTol error
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-- at the Boundary AngleTol tangent error at the
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-- Boundary (in radian) SurfTol error inside the
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-- surface.
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is redefined;
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BarycentreOfSurf(me)
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---Purpose: Get the barycentre of Surface.
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-- An very poor estimation is sufficent.
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-- This information is usefull to perform well
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-- conditioned rational approximation.
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-- Warning: Used only if <me> IsRational
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returns Pnt from gp
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is redefined;
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MaximalSection(me) returns Real
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---Purpose: Returns the length of the greater section. This
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-- information is usefull to G1's control.
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-- Warning: With an little value, approximation can be slower.
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is redefined;
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GetMinimalWeight(me; Weigths : out Array1OfReal from TColStd)
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---Purpose: Compute the minimal value of weight for each poles
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-- in all sections.
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-- This information is usefull to control error
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-- in rational approximation.
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-- Warning: Used only if <me> IsRational
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is redefined;
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--- Particular case
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IsConstant(me; Error : out Real)
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---Purpose: return True If the Law isConstant
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returns Boolean
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is redefined;
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ConstantSection(me)
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---Purpose: Return the constant Section if <me> IsConstant.
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--
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returns Curve from Geom
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is redefined;
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IsConicalLaw(me; Error : out Real)
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---Purpose: Returns True if all section are circle, with same
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-- plane,same center and linear radius evolution
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-- Return False by Default.
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returns Boolean
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is redefined;
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CirclSection(me; Param : Real)
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---Purpose: Return the circle section at parameter <Param>, if
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-- <me> a IsConicalLaw
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returns Curve from Geom
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raises OutOfRange from Standard -- If <me> is not a Conical Law
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is redefined;
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fields
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UFirst, ULast, VFirst, VLast : Real;
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mySections : SequenceOfCurve from TColGeom;
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myTrsfs : SequenceOfTrsf from GeomFill;
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myParams : SequenceOfReal from TColStd;
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mySurface : BSplineSurface from Geom;
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myRefSurf : BSplineSurface from Geom;
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end NSections;
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