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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
6.9 KiB
Plaintext
171 lines
6.9 KiB
Plaintext
-- Created on: 1995-05-02
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-- Created by: Jing Cheng MEI
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-- Copyright (c) 1995-1999 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 FindContigousEdges from BRepOffsetAPI
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---Purpose: Provides methods to identify contigous boundaries
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-- for continuity control (C0, C1, ...)
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--
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-- Use this function as following:
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-- - create an object
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-- - default tolerance 1.E-06
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-- - with analysis of degenerated faces on
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-- - define if necessary a new tolerance
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-- - set if necessary analysis of degenerated shapes off
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-- - add shapes to be controlled -> Add
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-- - compute -> Perfom
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-- - output couples of connected edges for control
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-- - output the problems if any
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uses
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Edge from TopoDS,
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Shape from TopoDS,
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ListOfShape from TopTools,
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Sewing from BRepBuilderAPI
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raises
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OutOfRange from Standard,
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NoSuchObject from Standard
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is
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Create(tolerance: Real = 1.0e-06; -- tolerance of connexity
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option: Boolean = Standard_True) -- option for analysis of degenerated shapes
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---Purpose: Initializes an algorithm for identifying contiguous edges
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-- on shapes with tolerance as the tolerance of contiguity
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-- (defaulted to 1.0e-6). This tolerance value is used to
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-- determine whether two edges or sections of edges are coincident.
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-- Use the function Add to define the shapes to be checked.
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-- Set option to false. This argument (defaulted to true) will
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-- serve in subsequent software releases for performing an
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-- analysis of degenerated shapes.
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returns FindContigousEdges from BRepOffsetAPI;
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Init(me: in out; tolerance: Real; option: Boolean);
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---Purpose: Initializes this algorithm for identifying contiguous edges
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-- on shapes using the tolerance of contiguity tolerance.
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-- This tolerance value is used to determine whether two
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-- edges or sections of edges are coincident.
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-- Use the function Add to define the shapes to be checked.
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-- Sets <option> to false.
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Add(me: in out; shape: Shape from TopoDS);
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---Purpose: Adds the shape shape to the list of shapes to be
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-- checked by this algorithm.
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-- Once all the shapes to be checked have been added,
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-- use the function Perform to find the contiguous edges
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-- and the function ContigousEdge to return these edges.
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Perform(me: in out);
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---Purpose: Finds coincident parts of edges of two or more shapes
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-- added to this algorithm and breaks down these edges
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-- into contiguous and non-contiguous sections on copies
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-- of the initial shapes.
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-- The function ContigousEdge returns contiguous
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-- edges. The function Modified can be used to return
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-- modified copies of the initial shapes where one or more
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-- edges were broken down into contiguous and non-contiguous sections.
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-- Warning
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-- This function must be used once all the shapes to be
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-- checked have been added. It is not possible to add
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-- further shapes subsequently and then to repeat the call to Perform.
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NbEdges(me) returns Integer;
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---Purpose: Gives the number of edges (free edges + contigous
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-- edges + multiple edge)
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NbContigousEdges(me) returns Integer;
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---Purpose: Returns the number of contiguous edges found by the
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-- function Perform on the shapes added to this algorithm.
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ContigousEdge(me; index: Integer) returns Edge from TopoDS
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---Purpose: Returns the contiguous edge of index index found by
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-- the function Perform on the shapes added to this algorithm.
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-- Exceptions
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-- Standard_OutOfRange if:
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-- - index is less than 1, or
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-- - index is greater than the number of contiguous
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-- edges found by the function Perform on the shapes added to this algorithm.
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---C++: return const &
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raises
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OutOfRange from Standard;
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ContigousEdgeCouple(me; index: Integer) returns ListOfShape from TopTools
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---Purpose: Returns a list of edges coincident with the contiguous
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-- edge of index index found by the function Perform.
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-- There are as many edges in the list as there are faces
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-- adjacent to this contiguous edge.
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-- Exceptions
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-- Standard_OutOfRange if:
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-- - index is less than 1, or
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-- - index is greater than the number of contiguous edges
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-- found by the function Perform on the shapes added to this algorithm.
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---C++: return const &
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raises
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OutOfRange from Standard;
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SectionToBoundary(me; section: Edge from TopoDS) returns Edge from TopoDS
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---Purpose: Returns the edge on the initial shape, of which the
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-- modified copy contains the edge section.
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-- section is coincident with a contiguous edge found by
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-- the function Perform. Use the function
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-- ContigousEdgeCouple to obtain a valid section.
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-- This information is useful for verification purposes, since
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-- it provides a means of determining the surface to which
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-- the contiguous edge belongs.
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-- Exceptions
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-- Standard_NoSuchObject if section is not coincident
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-- with a contiguous edge. Use the function
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-- ContigousEdgeCouple to obtain a valid section.
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---C++: return const &
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raises
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NoSuchObject from Standard;
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NbDegeneratedShapes(me) returns Integer;
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---Purpose: Gives the number of degenerated shapes
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DegeneratedShape(me; index: Integer) returns Shape from TopoDS
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---Purpose: Gives a degenerated shape
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---C++: return const &
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raises
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OutOfRange from Standard;
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-- raised if index < 1 or > NbDegeneratedShapes
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IsDegenerated(me; shape: Shape from TopoDS) returns Boolean;
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---Purpose: Indicates if a input shape is degenerated
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IsModified(me; shape: Shape from TopoDS) returns Boolean;
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---Purpose: Returns true if the copy of the initial shape shape was
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-- modified by the function Perform (i.e. if one or more of
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-- its edges was broken down into contiguous and non-contiguous sections).
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-- Warning
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-- Returns false if shape is not one of the initial shapes
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-- added to this algorithm.
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Modified(me; shape: Shape from TopoDS) returns Shape from TopoDS
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---Purpose: Gives a modifieded shape
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-- Raises NoSuchObject if shape has not been modified
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---C++: return const &
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raises
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NoSuchObject from Standard;
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Dump(me);
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---Purpose: Dump properties of resulting shape.
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fields
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mySewing : Sewing from BRepBuilderAPI;
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end FindContigousEdges;
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