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53 lines
2.3 KiB
Plaintext
Executable File
53 lines
2.3 KiB
Plaintext
Executable File
-- Created on: 1992-11-18
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-- Created by: Christian CAILLET
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-- Copyright (c) 1992-1999 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 SelectRoots from IFSelect inherits SelectExtract
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---Purpose : A SelectRoots sorts the Entities which are local roots of a
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-- set of Entities (not shared by other Entities inside this set,
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-- even if they are shared by other Entities outside it)
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uses AsciiString from TCollection, InterfaceModel, EntityIterator, Graph
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is
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Create returns mutable SelectRoots;
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---Purpose : Creates a SelectRoots
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RootResult (me; G : Graph) returns EntityIterator is redefined;
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---Purpose : Returns the list of local roots. It is redefined for a purpose
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-- of effeciency : calling a Sort routine for each Entity would
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-- cost more ressource than to work in once using a Map
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-- RootResult takes in account the Direct status
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HasUniqueResult (me) returns Boolean is redefined protected;
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---Purpose : Returns True, because RootResult assures uniqueness
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Sort (me; rank : Integer; ent : Transient; model : InterfaceModel)
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returns Boolean;
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---Purpose : Returns always True, because RootResult has done work
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ExtractLabel (me) returns AsciiString from TCollection;
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---Purpose : Returns a text defining the criterium : "Local Root Entities"
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end SelectRoots;
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