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-- File: BooleanOperations_Explorer.cdl
-- Created: Mon Sep 4 11:04:51 2000
-- Author: Vincent DELOS
-- <vds@bulox.paris1.matra-dtv.fr>
---Copyright: Matra Datavision 2000
class Explorer from BooleanOperations
---Purpose: the explorer associated to the Data Structure to
-- retrieve subshapes of a given shape stored in
-- ShapesDataStructure.
uses
Shape from TopoDS,
ShapeEnum from TopAbs,
ShapesDataStructure from BooleanOperations,
PShapesDataStructure from BooleanOperations
is
Create (SDS: ShapesDataStructure)
returns Explorer from BooleanOperations;
--modified by NIZNHY-PKV Sun Dec 15 16:24:39 2002 f
Delete(me: out)
is virtual;
---C++: alias "Standard_EXPORT virtual ~BooleanOperations_Explorer() {Delete();}"
--modified by NIZNHY-PKV Sun Dec 15 16:27:53 2002 t
Init (me:in out;
aShape: Integer;
TargetToFind: ShapeEnum;
TargetToAvoid: ShapeEnum = TopAbs_SHAPE) is virtual;
Next (me:in out)
is virtual;
More (me)
returns Boolean;
Current (me:in out)
returns Integer is virtual;
Dump (me; S : in out OStream)
is virtual;
fields
myShapesDataStructure: PShapesDataStructure is protected;
---Purpose: the data structure we're working on.
myStack : Address is protected;
---Purpose: contains all the numbers associated to the shapes.
myTopOfStack : Integer is protected;
---Purpose: gives the position of the highest element in the stack,
-- i.e. the index of the number of the current shape.
mySizeOfStack : Integer is protected;
---Purpose: gives the number of elements in the stack.
myTargetToFind : ShapeEnum is protected;
---Purpose: the kind of shape we are looking for.
myTargetToAvoid: ShapeEnum is protected;
---Purpose: the kind of shape we want to avoid.
hasMore : Boolean is protected;
---Purpose: if we still have a new shape to return.
end Explorer;
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