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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.
171 lines
6.5 KiB
Plaintext
171 lines
6.5 KiB
Plaintext
-- Created on: 1991-10-10
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-- Created by: Jean Claude VAUTHIER
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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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deferred class ElementarySurfaceToBSplineSurface from Convert
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--- Purpose :Root class for algorithms which convert an elementary
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-- surface (cylinder, cone, sphere or torus) into a BSpline
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-- surface (CylinderToBSplineSurface, ConeToBSplineSurface,
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-- SphereToBSplineSurface, TorusToBSplineSurface).
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-- These algorithms all work on elementary surfaces from
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-- the gp package and compute all the data needed to
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-- construct a BSpline surface equivalent to the cylinder,
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-- cone, sphere or torus. This data consists of the following:
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-- - degrees in the u and v parametric directions,
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-- - periodic characteristics in the u and v parametric directions,
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-- - a poles table with associated weights,
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-- - a knots table (for the u and v parametric directions)
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-- with associated multiplicities.
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-- The abstract class
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-- ElementarySurfaceToBSplineSurface provides a
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-- framework for storing and consulting this computed data.
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-- This data may then be used to construct a
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-- Geom_BSplineSurface surface, for example.
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-- All those classes define algorithmes to convert an
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-- ElementarySurface into a B-spline surface.
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-- This abstract class implements the methods to get
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-- the geometric representation of the B-spline surface.
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-- The B-spline representation is computed at the creation
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-- time in the sub classes.
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-- The B-spline surface is defined with its degree in the
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-- parametric U and V directions, its control points (Poles),
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-- its weights, its knots and their multiplicity.
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-- KeyWords :
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-- Convert, ElementarySurface, BSplineSurface.
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uses Array1OfInteger from TColStd,
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Array1OfReal from TColStd,
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Array2OfReal from TColStd,
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Array2OfPnt from TColgp,
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Pnt from gp
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raises OutOfRange from Standard
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is
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UDegree (me) returns Integer is static;
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VDegree (me) returns Integer is static;
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---Purpose: Returns the degree for the u or v parametric direction of
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-- the BSpline surface whose data is computed in this framework.
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NbUPoles (me) returns Integer is static;
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NbVPoles (me) returns Integer is static;
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---Purpose: Returns the number of poles for the u or v parametric
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-- direction of the BSpline surface whose data is computed in this framework.
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NbUKnots (me) returns Integer is static;
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NbVKnots (me) returns Integer is static;
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---Purpose: Returns the number of knots for the u or v parametric
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-- direction of the BSpline surface whose data is computed in this framework .
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IsUPeriodic(me) returns Boolean is static;
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IsVPeriodic(me) returns Boolean is static;
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---Purpose: Returns true if the BSpline surface whose data is computed
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-- in this framework is periodic in the u or v parametric direction.
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Pole (me; UIndex, VIndex : Integer) returns Pnt
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--- Purpose : Returns the pole of index (UIndex,VIndex) to the poles
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-- table of the BSpline surface whose data is computed in this framework.
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-- Exceptions
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-- Standard_OutOfRange if, for the BSpline surface whose
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-- data is computed in this framework:
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-- - UIndex is outside the bounds of the poles table in the u
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-- parametric direction, or
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-- - VIndex is outside the bounds of the poles table in the v
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-- parametric direction.
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raises OutOfRange
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is static;
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Weight (me; UIndex, VIndex : Integer) returns Real
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--- Purpose : Returns the weight of the pole of index (UIndex,VIndex) to
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-- the poles table of the BSpline surface whose data is computed in this framework.
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-- Exceptions
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-- Standard_OutOfRange if, for the BSpline surface whose
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-- data is computed in this framework:
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-- - UIndex is outside the bounds of the poles table in the u
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-- parametric direction, or
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-- - VIndex is outside the bounds of the poles table in the v
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-- parametric direction.
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raises OutOfRange
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is static;
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UKnot (me; UIndex : Integer) returns Real
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--- Purpose : Returns the U-knot of range UIndex.
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raises OutOfRange
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--- Purpose : Raised if UIndex < 1 or UIndex > NbUKnots.
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is static;
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VKnot (me; UIndex : Integer) returns Real
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--- Purpose : Returns the V-knot of range VIndex.
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raises OutOfRange
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--- Purpose : Raised if VIndex < 1 or VIndex > NbVKnots.
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is static;
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UMultiplicity (me; UIndex : Integer) returns Integer
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--- Purpose : Returns the multiplicity of the U-knot of range UIndex.
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raises OutOfRange
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--- Purpose : Raised if UIndex < 1 or UIndex > NbUKnots.
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is static;
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VMultiplicity (me; VIndex : Integer) returns Integer
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--- Purpose : Returns the multiplicity of the V-knot of range VIndex.
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raises OutOfRange
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--- Purpose : Raised if VIndex < 1 or VIndex > NbVKnots.
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is static;
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Initialize (NumberOfUPoles, NumberOfVPoles, NumberOfUKnots,
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NumberOfVKnots, UDegree, VDegree : Integer);
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fields
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poles : Array2OfPnt is protected;
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weights : Array2OfReal is protected;
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uknots : Array1OfReal is protected;
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umults : Array1OfInteger is protected;
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vknots : Array1OfReal is protected;
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vmults : Array1OfInteger is protected;
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udegree : Integer is protected;
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vdegree : Integer is protected;
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nbUPoles : Integer is protected;
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nbVPoles : Integer is protected;
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nbUKnots : Integer is protected;
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nbVKnots : Integer is protected;
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isuperiodic : Boolean is protected;
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isvperiodic : Boolean is protected;
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end ElementarySurfaceToBSplineSurface;
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