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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.
90 lines
3.2 KiB
Plaintext
90 lines
3.2 KiB
Plaintext
-- Created on: 1991-03-27
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-- Created by: Michel CHAUVAT
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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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package LProp
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---Purpose: Handles local properties of curves and surfaces.
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-- Given a curve and a parameter value the following computations
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-- are available :
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-- - point,
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-- - derivatives,
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-- - tangent,
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-- - normal,
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-- - curvature,
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-- - centre of curvature,
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-- - Locals curvature's extremas,
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-- - Points of inflection,
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-- Given a surface and 2 parameters the following computations
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-- are available :
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-- - for each parameter:
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-- - derivatives,
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-- - tangent line,
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-- - centre of curvature,
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-- - point,
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-- - normal line,
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-- - maximum and minimum curvatures,
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-- - principal directions of curvature,
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-- - mean curvature,
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-- - Gaussian curvature.
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---Level : Public.
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-- All methods of all classes will be public.
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uses Standard, gp, math, TCollection, TColStd, GeomAbs
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is
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enumeration Status is Undecided , Undefined, Defined, Computed;
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enumeration CIType is Inflection, MinCur , MaxCur;
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---Purpose:
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-- Identifies the type of a particular point on a curve:
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-- - LProp_Inflection: a point of inflection
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-- - LProp_MinCur: a minimum of curvature
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-- - LProp_MaxCur: a maximum of curvature.
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exception BadContinuity inherits Failure;
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exception NotDefined inherits Failure;
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deferred generic class CurveTool;
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---Purpose: The template class used in CLProps.
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deferred generic class SurfaceTool;
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---Purpose: The template class used in SLProps.
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generic class CLProps;
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---Purpose: Computation of local properties of a curve.
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generic class SLProps;
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---Purpose: Computation of local properties of a surface.
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class CurAndInf;
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---Purpose: Stores the parameters of a curve 2d or 3d corresponding
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-- to the curvature's extremas and the inflection's points.
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class AnalyticCurInf;
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---Purpose: Computes the locals extremas of curvature of a gp curve.
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private generic class FuncCurExt;
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private generic class FuncCurNul;
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generic class NumericCurInf, FCurExt, FCurNul;
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---Purpose: Computes the locals extremas of curvature and the
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-- inflections of a bounded curve in 2d.
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private class SequenceOfCIType instantiates Sequence from TCollection
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(CIType from LProp);
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end LProp;
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