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-- File: TNaming_Tool.cdl
-- Created: Tue Dec 24 08:50:25 1996
-- Author: Yves FRICAUD
-- <yfr@claquox.paris1.matra-dtv.fr>
---Copyright: Matra Datavision 1996
class Tool from TNaming
---Purpose: A tool to get information on the topology of a
-- named shape attribute.
-- This information is typically a TopoDS_Shape object.
-- Using this tool, relations between named shapes
-- are also accessible.
uses
Label from TDF,
LabelList from TDF,
LabelMap from TDF,
NamedShape from TNaming,
UsedShapes from TNaming,
Evolution from TNaming,
MapOfNamedShape from TNaming,
ListOfShape from TopTools,
Shape from TopoDS,
OldShapeIterator from TNaming,
MapOfShape from TopTools
is
CurrentShape (myclass ; NS : NamedShape from TNaming)
---Purpose: Returns the last Modification of <NS>.
-- Returns the shape CurrentShape contained in
-- the named shape attribute NS.
-- CurrentShape is the current state of the entities
-- if they have been modified in other attributes of the same data structure.
-- Each call to this function creates a new compound.
returns Shape from TopoDS;
CurrentShape (myclass ; NS : NamedShape from TNaming;
Updated : LabelMap from TDF)
---Purpose: Returns the shape CurrentShape contained in
-- the named shape attribute NS, and present in
-- the updated attribute map Updated.
-- CurrentShape is the current state of the entities
-- if they have been modified in other attributes of the same data structure.
-- Each call to this function creates a new compound.
-- Warning
-- Only the contents of Updated are searched.R
returns Shape from TopoDS;
CurrentNamedShape (myclass ; NS : NamedShape from TNaming;
Updated : LabelMap from TDF)
---Purpose: Returns the NamedShape of the last Modification of <NS>.
-- This shape is identified by a label.
returns NamedShape from TNaming;
CurrentNamedShape (myclass ; NS : NamedShape from TNaming)
---Purpose: Returns NamedShape the last Modification of <NS>.
returns NamedShape from TNaming;
NamedShape (myclass; aShape : Shape from TopoDS;
anAcces : Label from TDF)
---Purpose: Returns the named shape attribute defined by
-- the shape aShape and the label anAccess.
-- This attribute is returned as a new shape.
-- You call this function, if you need to create a
-- topological attribute for existing data.
-- Example
-- class MyPkg_MyClass
-- {
-- public: Standard_Boolean
-- SameEdge(const
-- Handle(OCafTest_Line)& , const
-- Handle(CafTest_Line)& );
-- };
--
-- Standard_Boolean
-- MyPkg_MyClass::SameEdge
-- (const Handle(OCafTest_Line)& L1
-- const Handle(OCafTest_Line)& L2)
-- { Handle(TNaming_NamedShape)
-- NS1 = L1->NamedShape();
-- Handle(TNaming_NamedShape)
-- NS2 = L2->NamedShape();
--
-- return
-- BRepTools::Compare(NS1->Get(),NS2->Get());
-- }
-- In the example above, the function SameEdge is
-- created to compare the edges having two lines
-- for geometric supports. If these edges are found
-- by BRepTools::Compare to be within the same
-- tolerance, they are considered to be the same.
-- Warning
-- To avoid sharing of names, a SELECTED
-- attribute will not be returned. Sharing of names
-- makes it harder to manage the data structure.
-- When the user of the name is removed, for
-- example, it is difficult to know whether the name
-- should be destroyed.
returns NamedShape from TNaming;
GetShape (myclass ; NS : NamedShape from TNaming)
---Purpose: Returns the entities stored in the named shape attribute NS.
-- If there is only one old-new pair, the new shape
-- is returned. Otherwise, a Compound is returned.
-- This compound is made out of all the new shapes found.
-- Each call to this function creates a new compound.
returns Shape from TopoDS;
OriginalShape (myclass ; NS : NamedShape from TNaming)
--- Purpose: Returns the shape contained as OldShape in <NS>
returns Shape from TopoDS;
GeneratedShape (myclass; S : Shape from TopoDS;
Generation : NamedShape from TNaming)
---Purpose: Returns the shape generated from S or by a
-- modification of S and contained in the named
-- shape Generation.
returns Shape from TopoDS;
Collect (myclass; NS : NamedShape from TNaming;
Labels : out MapOfNamedShape from TNaming;
OnlyModif : Boolean = Standard_True);
HasLabel(myclass; access : Label from TDF;
aShape : Shape from TopoDS)
---Purpose: Returns True if <aShape> appears under a label.(DP)
returns Boolean from Standard;
Label (myclass; access : Label from TDF;
aShape : Shape from TopoDS;
TransDef : in out Integer from Standard)
returns Label from TDF;
---Purpose: Returns the label of the first apparition of
-- <aShape>. Transdef is a value of the transaction
-- of the first apparition of <aShape>.
InitialShape (myclass ; aShape : Shape from TopoDS ;
anAcces : Label from TDF;
Labels : in out LabelList from TDF)
---Purpose:
-- Returns the shape created from the shape
-- aShape contained in the attribute anAcces.
returns Shape from TopoDS;
ValidUntil (myclass; access : Label from TDF;
S : Shape from TopoDS)
---Purpose: Returns the last transaction where the creation of S
-- is valid.
returns Integer from Standard;
FindShape (myclass;
Valid : LabelMap from TDF;
Forbiden : LabelMap from TDF;
Arg : NamedShape from TNaming;
S : in out Shape from TopoDS);
---Purpose: Returns the current shape (a Wire or a Shell) built (in the data framework)
-- from the the shapes of the argument named shape.
-- It is used for IDENTITY name type computation.
---Category: private methods
-- ===============
HasLabel(myclass; Shapes : UsedShapes from TNaming;
aShape : Shape from TopoDS)
---Purpose: Returns True if <aShape> appears under a label.
returns Boolean from Standard
is private;
ValidUntil (myclass; S : Shape from TopoDS;
US : UsedShapes from TNaming)
---Purpose: Returns the last transaction where the creation of S
-- is valid.
returns Integer from Standard
is private;
Label(myclass; Shapes : UsedShapes from TNaming;
aShape : Shape from TopoDS;
TransDef : in out Integer from Standard)
returns Label from TDF
is private;
---Purpose: Returns the label of the first apparition of
-- <aShape>. Transdef is a value of the transaction
-- of the first apparition of <aShape>.
FirstOlds (myclass; Shapes : UsedShapes from TNaming;
S : Shape from TopoDS;
it : in out OldShapeIterator from TNaming;
MS : in out MapOfShape from TopTools;
Labels : in out LabelList from TDF)
is private;
friends
class Localizer from TNaming,
class NamedShape from TNaming,
class OldShapeIterator from TNaming
end Tool;
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