-- File:	BRepAlgo_DSAccess.cdl
-- Created:	Wed Aug 13 16:01:14 1997
-- Author:	Prestataire Mary FABIEN
--		<fbi@langdox.paris1.matra-dtv.fr>
---Copyright:	 Matra Datavision 1997

class TopOpe from BRepAlgo

    ---Purpose: 

uses

    Wire           from TopoDS,
    Shape          from TopoDS,
    ListOfInteger  from TColStd,  
    SetOfInteger   from TColStd,
    MapOfInteger   from TColStd,
    ListOfShape    from TopTools,
    State          from TopAbs,
    EdgeConnector  from BRepAlgo,
    DataMapOfShapeShape from TopTools, 
    
    PDSFiller            from BOPTools,  
    PBuilder             from BOP,
    HistoryCollector     from BOP 
    
is
    
    Create returns TopOpe from BRepAlgo;
    
    Init(me: in out);
    ---Purpose: Clean the internal data structure, including the
    --          Shapes of Load().


-- Remplissage de la SD

    Load(me : in out; S : Shape from TopoDS);
    ---Purpose: Load the shape in the DS.
    --          

    Load(me : in out; S1, S2 : in out Shape from TopoDS);
    ---Purpose: Load the shapes in the DS without intersecting them.

    Intersect(me : in out);
    ---Purpose: Intersect two shapes at input and load the DS with 
    --          their intersection. Clear TopOpeBRepBuild_HBuilder if
    --          necessary

    Intersect(me : in out; S1, S2 : Shape from TopoDS);
    ---Purpose: Intersect faces contained in two given shapes
    --          load the DS with them. Clear TopOpeBRepBuild_HBuilder
    --          if necessary

    ToCompleteIntersection(me : in out); 
    
-- Construction of Sections

--    GetSectionEdgeSet(me : in out; S1,S2 : Shape from TopoDS)
--    ---Purpose: return the compounds of Edge connected with section 
    --          that contain the sections between faces contained in
    --          S1 and S2.
    --          return an empty list of Shape if S1 or S2 do not
    --          contain faces.
    --          call GetSectionEdgeSet() if it is not done already
--    ---C++: return const &
--    returns ListOfShape from TopTools;

    GetSectionEdgeSet(me : in out)
    ---Purpose: return all compounds of connected edges
    --          of section contained in the DS
    ---C++: return const &
    returns ListOfShape from TopTools;
    

    SuppressEdgeSet(me : in out);
    ---Purpose: Invalidate a line of complete section.  
    --          A group of Edges connected by Vertexes. Can be a Wire. 
    --          Can be a group of connected Edges that do not form a
    --          standard Wire. 
              

-- Reconstruction des Shapes

    Merge(me : in out; state1 : State from TopAbs;
    	    	       state2 : State from TopAbs)
    ---C++: return const &
    returns Shape from TopoDS;

    Merge(me : in out; state1 : State from TopAbs)
    ---C++: return const &
    returns Shape from TopoDS;

    PaveBlocksNotEmpty(me : in out)
    returns Boolean from Standard; 
    
-- Access  to  fields 

    Builder(me)
    ---C++: return const &
    returns PBuilder from BOP;

    DSFiller(me)
    ---C++: return const &
    returns PDSFiller from BOPTools; 
     
    History(me)
    ---C++: return const &
    returns HistoryCollector from BOP; 
     

    Destroy (me: in out); 
    ---C++: alias "Standard_EXPORT virtual ~BRepAlgo_TopOpe(){Destroy();}" 

fields 

    myDSFiller    : PDSFiller  from BOPTools;
    myBuilder     : PBuilder       from BOP; 
    myHistory     : HistoryCollector from BOP;
    
    myEC  : EdgeConnector  from BRepAlgo;
    myS1  : Shape from TopoDS;
    myS2  : Shape from TopoDS;
    myState1,myState2 : State from TopAbs;
    
    myListOfCompoundOfEdgeConnected : ListOfShape from TopTools;
    myCurrentList                   : ListOfShape from TopTools;
    myRecomputeBuilderIsDone : Boolean from Standard;
    myGetSectionIsDone       : Boolean from Standard;
    myResultShape            : Shape from TopoDS;

    myWire : Wire from TopoDS;
    myListOfVertex : ListOfShape from TopTools; 
    myModified     : ListOfShape from TopTools;
    myEmptyShape : Shape from TopoDS;
    myEmptyListOfShape : ListOfShape from TopTools;
    myEmptyListOfInteger : ListOfInteger from TColStd;

    myCompoundWireMap : DataMapOfShapeShape from TopTools; 
    mySetOfKeepPoint  : SetOfInteger  from  TColStd;
    

end TopOpe from BRepAlgo;