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209 lines
9.9 KiB
Plaintext
Executable File
209 lines
9.9 KiB
Plaintext
Executable File
-- Created on: 1998-06-17
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-- Created by: data exchange team
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-- Copyright (c) 1998-1999 Matra Datavision
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-- Copyright (c) 1999-2012 OPEN CASCADE SAS
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--
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-- The content of this file is subject to the Open CASCADE Technology Public
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-- License Version 6.5 (the "License"). You may not use the content of this file
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-- except in compliance with the License. Please obtain a copy of the License
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-- at http://www.opencascade.org and read it completely before using this file.
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--
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-- The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
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-- main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
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--
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-- The Original Code and all software distributed under the License is
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-- distributed on an "AS IS" basis, without warranty of any kind, and the
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-- Initial Developer hereby disclaims all such warranties, including without
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-- limitation, any warranties of merchantability, fitness for a particular
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-- purpose or non-infringement. Please see the License for the specific terms
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-- and conditions governing the rights and limitations under the License.
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class Edge from ShapeFix inherits TShared from MMgt
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---Purpose: Fixing invalid edge.
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-- Geometrical and/or topological inconsistency:
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-- - no 3d curve or pcurve,
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-- - mismatching orientation of 3d curve and pcurve,
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-- - incorrect SameParameter flag (curve deviation is greater than
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-- edge tolerance),
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-- - not adjacent curves (3d or pcurve) to the vertices.
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uses
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Surface from Geom,
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Surface from ShapeAnalysis,
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Edge from TopoDS,
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Face from TopoDS,
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Location from TopLoc,
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Status from ShapeExtend,
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ProjectCurveOnSurface from ShapeConstruct
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is
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Create returns Edge from ShapeFix;
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---Purpose: Empty constructor
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Projector (me: mutable) returns ProjectCurveOnSurface from ShapeConstruct;
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---Purpose: Returns the projector used for recomputing missing pcurves
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-- Can be used for adjusting parameters of projector
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FixRemovePCurve (me: mutable; edge: Edge from TopoDS;
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face: Face from TopoDS)
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returns Boolean;
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FixRemovePCurve (me: mutable; edge : Edge from TopoDS;
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surface : Surface from Geom;
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location: Location from TopLoc)
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returns Boolean;
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---Purpose: Removes the pcurve(s) of the edge if it does not match the
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-- vertices
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-- Check is done
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-- Use : It is to be called when pcurve of an edge can be wrong
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-- (e.g., after import from IGES)
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-- Returns: True, if does not match, removed (status DONE)
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-- False, (status OK) if matches or (status FAIL) if no pcurve,
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-- nothing done
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FixRemoveCurve3d (me: mutable; edge: Edge from TopoDS) returns Boolean;
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---Purpose: Removes 3d curve of the edge if it does not match the vertices
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-- Returns: True, if does not match, removed (status DONE)
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-- False, (status OK) if matches or (status FAIL) if no 3d curve,
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-- nothing done
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FixAddPCurve (me: mutable; edge : Edge from TopoDS;
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face : Face from TopoDS;
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isSeam: Boolean;
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prec : Real = 0.0)
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returns Boolean;
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---Purpose: See method below for information
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FixAddPCurve (me: mutable; edge : Edge from TopoDS;
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surface : Surface from Geom;
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location: Location from TopLoc;
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isSeam : Boolean;
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prec : Real = 0.0)
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returns Boolean;
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---Purpose: See method below for information
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FixAddPCurve (me: mutable; edge : Edge from TopoDS;
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face : Face from TopoDS;
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isSeam : Boolean;
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surfana : Surface from ShapeAnalysis;
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prec : Real = 0.0)
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returns Boolean;
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---Purpose: See method below for information
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FixAddPCurve (me: mutable; edge : Edge from TopoDS;
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surface : Surface from Geom;
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location: Location from TopLoc;
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isSeam : Boolean;
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surfana : Surface from ShapeAnalysis;
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prec : Real = 0.0)
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returns Boolean;
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---Purpose: Adds pcurve(s) of the edge if missing (by projecting 3d curve)
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-- Parameter isSeam indicates if the edge is a seam.
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-- The parameter <prec> defines the precision for calculations.
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-- If it is 0 (default), the tolerance of the edge is taken.
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-- Remark : This method is rather for internal use since it accepts parameter
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-- <surfana> for optimization of computations
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-- Use : It is to be called after FixRemovePCurve (if removed) or in any
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-- case when edge can have no pcurve
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-- Returns: True if pcurve was added, else False
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-- Status :
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-- OK : Pcurve exists
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-- FAIL1: No 3d curve
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-- FAIL2: fail during projecting
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-- DONE1: Pcurve was added
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-- DONE2: specific case of pcurve going through degenerated point on
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-- sphere encountered during projection (see class
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-- ShapeConstruct_ProjectCurveOnSurface for more info)
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FixAddCurve3d (me: mutable; edge: Edge from TopoDS) returns Boolean;
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---Purpose: Tries to build 3d curve of the edge if missing
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-- Use : It is to be called after FixRemoveCurve3d (if removed) or in any
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-- case when edge can have no 3d curve
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-- Returns: True if 3d curve was added, else False
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-- Status :
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-- OK : 3d curve exists
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-- FAIL1: BRepLib::BuildCurve3d() has failed
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-- DONE1: 3d curve was added
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FixVertexTolerance (me: mutable; edge: Edge from TopoDS;
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face: Face from TopoDS) returns Boolean;
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FixVertexTolerance (me: mutable; edge: Edge from TopoDS) returns Boolean;
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---Purpose: Increases the tolerances of the edge vertices to comprise
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-- the ends of 3d curve and pcurve on the given face
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-- (first method) or all pcurves stored in an edge (second one)
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-- Returns: True, if tolerances have been increased, otherwise False
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-- Status:
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-- OK : the original tolerances have not been changed
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-- DONE1: the tolerance of first vertex has been increased
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-- DONE2: the tolerance of last vertex has been increased
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FixReversed2d (me: mutable; edge: Edge from TopoDS;
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face: Face from TopoDS)
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returns Boolean;
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FixReversed2d (me: mutable; edge : Edge from TopoDS;
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surface : Surface from Geom;
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location: Location from TopLoc)
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returns Boolean;
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---Purpose: Fixes edge if pcurve is directed opposite to 3d curve
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-- Check is done by call to the function
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-- ShapeAnalysis_Edge::CheckCurve3dWithPCurve()
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-- Warning: For seam edge this method will check and fix the pcurve in only
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-- one direction. Hence, it should be called twice for seam edge:
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-- once with edge orientation FORWARD and once with REVERSED.
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-- Returns: False if nothing done, True if reversed (status DONE)
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-- Status: OK - pcurve OK, nothing done
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-- FAIL1 - no pcurve
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-- FAIL2 - no 3d curve
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-- DONE1 - pcurve was reversed
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FixSameParameter (me: mutable; edge : Edge from TopoDS;
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tolerance: Real = 0.0)
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returns Boolean;
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---Purpose: Tries to make edge SameParameter and sets corresponding
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-- tolerance and SameParameter flag.
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-- First, it makes edge same range if SameRange flag is not set.
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--
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-- If flag SameParameter is set, this method calls the
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-- function ShapeAnalysis_Edge::CheckSameParameter() that
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-- calculates the maximal deviation of pcurves of the edge from
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-- its 3d curve. If deviation > tolerance, the tolerance of edge
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-- is increased to a value of deviation. If deviation < tolerance
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-- nothing happens.
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--
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-- If flag SameParameter is not set, this method chooses the best
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-- variant (one that has minimal tolerance), either
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-- a. only after computing deviation (as above) or
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-- b. after calling standard procedure BRepLib::SameParameter
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-- and computing deviation (as above). If <tolerance> > 0, it is
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-- used as parameter for BRepLib::SameParameter, otherwise,
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-- tolerance of the edge is used.
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--
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-- Use : Is to be called after all pcurves and 3d curve of the edge are
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-- correctly computed
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-- Remark : SameParameter flag is always set to True after this method
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-- Returns: True, if something done, else False
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-- Status : OK - edge was initially SameParameter, nothing is done
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-- FAIL1 - computation of deviation of pcurves from 3d curve has failed
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-- FAIL2 - BRepLib::SameParameter() has failed
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-- DONE1 - tolerance of the edge was increased
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-- DONE2 - flag SameParameter was set to True (only if
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-- BRepLib::SameParameter() did not set it)
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-- DONE3 - edge was modified by BRepLib::SameParameter() to SameParameter
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-- DONE4 - not used anymore
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-- DONE5 - if the edge resulting from BRepLib has been chosen, i.e. variant b. above
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-- (only for edges with not set SameParameter)
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Status (me; status: Status from ShapeExtend) returns Boolean;
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---Purpose: Returns the status (in the form of True/False) of last Fix
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fields
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myStatus: Integer is protected;
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myProjector: ProjectCurveOnSurface from ShapeConstruct is protected;
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end Edge;
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