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75 lines
3.5 KiB
Plaintext
Executable File
75 lines
3.5 KiB
Plaintext
Executable File
-- Created on: 1992-11-17
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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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deferred class Selection from IFSelect inherits TShared
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---Purpose : A Selection allows to define a set of Interface Entities.
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-- Entities to be put on an output file should be identified in
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-- a way as independant from such or such execution as possible.
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-- This permits to handle comprehensive criteria, and to replay
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-- them when a new variant of an input file has to be processed.
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--
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-- Its input can be, either an Interface Model (the very source),
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-- or another-other Selection(s) or any other ouput. All list
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-- computations start from an input Graph (from IFGraph)
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uses AsciiString from TCollection, EntityIterator, Graph, SelectionIterator
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raises InterfaceError
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is
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RootResult (me; G : Graph) returns EntityIterator
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raises InterfaceError is deferred;
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---Purpose : Returns the list of selected entities, computed from Input
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-- given as a Graph. Specific to each class of Selection
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-- Note that uniqueness of each entity is not required here
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-- This method can raise an exception as necessary
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HasUniqueResult (me) returns Boolean is virtual protected;
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---Purpose : Returns True if RootResult guarantees uniqueness for each
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-- Entity. Called by UniqueResult.
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-- Default answer is False. Can be redefined.
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UniqueResult (me; G : Graph) returns EntityIterator;
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---Purpose : Returns the list of selected entities, each of them beeing
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-- unique. Default definition works from RootResult. According
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-- HasUniqueResult, UniqueResult returns directly RootResult,
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-- or build a Unique Result from it with a Graph.
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CompleteResult (me; G : Graph) returns EntityIterator is virtual;
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---Purpose : Returns the list of entities involved by a Selection, i.e.
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-- UniqueResult plus the shared entities (directly or not)
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FillIterator (me; iter : in out SelectionIterator) is deferred;
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---Purpose : Puts in an Iterator the Selections from which "me" depends
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-- (there can be zero, or one, or a list).
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-- Specific to each class of Selection
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Label (me) returns AsciiString from TCollection is deferred;
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---Purpose : Returns a text which defines the criterium applied by a
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-- Selection (can be used to be printed, displayed ...)
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-- Specific to each class
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end Selection;
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