--  GEOM PARTITION : partition algorithm
--
--  Copyright (C) 2003  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
--  CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS 
-- 
--  This library is free software; you can redistribute it and/or 
--  modify it under the terms of the GNU Lesser General Public 
--  License as published by the Free Software Foundation; either 
--  version 2.1 of the License. 
-- 
--  This library is distributed in the hope that it will be useful, 
--  but WITHOUT ANY WARRANTY; without even the implied warranty of 
--  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
--  Lesser General Public License for more details. 
-- 
--  You should have received a copy of the GNU Lesser General Public 
--  License along with this library; if not, write to the Free Software 
--  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA 
-- 
--  See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org 
--
--
--
--  File   : Partition_Inter3d.cdl
--  Author : Benedicte MARTIN
--  Module : GEOM

class Inter3d from Partition 

        ---Purpose: Computes the intersection face face in a set of faces
        --          Store the result in a SD as AsDes.

uses
    Edge from TopoDS,
    Vertex from TopoDS,
    DataMapOfShapeShape       from TopTools,
    MapOfShape                from TopTools,
    Boolean                   from Standard,
    AsDes                     from BRepAlgo,
    Image                     from BRepAlgo,
    Shape                     from TopoDS,
    Face                      from TopoDS,
    ListOfShape               from TopTools,
    Real                      from Standard,
    State                     from TopAbs,
    DataMapOfShapeListOfShape from TopTools 

is
    Create returns Inter3d from Partition;
    
    Create(AsDes : mutable AsDes from BRepAlgo);

    CompletPart3d (me : in out; SetOfFaces1 : ListOfShape from TopTools;
                                FaceShapeMap: DataMapOfShapeShape from TopTools)
        is static;

    FacesPartition (me : in out; F1, F2 : Face  from TopoDS)
        is static;

        ----------------------------
        ---Category: Result Querying
        ----------------------------

    IsDone(me ; F1,F2 : Face from TopoDS) 
        returns Boolean from Standard is static;
        ---Purpose: return True if F1-F2 pair has been processed

    TouchedFaces(me : in out) returns MapOfShape from TopTools
        ---C++: return &
        is static;
        ---Purpose: return map of faces cut by new or section edges

    NewEdges(me : in out) returns MapOfShape from TopTools
        ---C++:  return &
        is static;
        ---Purpose: return new and section edges

    AsDes(me) returns AsDes from BRepAlgo
        is static;
        ---Purpose: return an object containing info about
        --             Ascendants     | Descendants
        --          ------------------+---------------------
        --          1. faces          | edges cutting them
        --          2. sectoin edges  | new vertices on them


        -------------------------------
        ---Category: Same domain shapes
        -------------------------------

    HasSameDomainF(me; F : Shape from TopoDS)
        returns Boolean from Standard;
        ---Purpose: Return true if F has same domain faces
    
    IsSameDomainF(me; F1, F2 : Shape from TopoDS)
        returns Boolean from Standard;
        ---Purpose: Return true if F1 and F2 are same domain faces
    
    SameDomain(me; F : Face from TopoDS)
        returns ListOfShape from TopTools;
        ---C++:  return const &
        ---Purpose: Return same domain faces of F
    
    ReplaceSameDomainV (me; V : Vertex from TopoDS;
                            E : Edge   from TopoDS)
        returns Vertex from TopoDS;
        ---Purpose: return same domain vertex of  V if it was replaced
        --          and make this vertex to be on E too, else return V

        --------------------------
        ---Category: Section edges
        --------------------------

    SectionEdgesAD (me) returns AsDes from BRepAlgo
        is static;
    
    IsSectionEdge (me; E : Edge from TopoDS) 
        returns Boolean from Standard;
        ---Purpose: return True if E is an edge of an initial face and
        --          E intersects aother face
    
    HasSectionEdge (me; F : Face from TopoDS)
        returns Boolean from Standard;
        ---Purpose: return True if  F  is  intersected  by  an edge of 
        --          other face

    IsSplitOn (me; NewE, OldE : Edge from TopoDS;
                   F : Face from TopoDS)
        returns Boolean from Standard;
        ---Purpose: return True if NewE is split of OldE on F;
        --          no check if NewE is split of OldE :)
    
    SectionEdgeFaces (me; SecE : Edge from TopoDS)
        returns ListOfShape from TopTools;
        ---C++:  return const&
        ---Purpose: return faces cut by section edge
    
        --------------------
        ---Category: Private
        --------------------

    Inter3D (me: in out; F1, F2 :        Face        from TopoDS;
                         LInt   : in out ListOfShape from TopTools)
        is static private;
    
    StorePart3d(me : in out; F1,F2 : Face        from TopoDS;
                             LInt1 : ListOfShape from TopTools)
        is static private;    
    
    SetDone(me : in out; F1,F2 : Face from TopoDS)
        is static private;

    Affiche (me; SetOfFaces : ListOfShape from TopTools)
        is static private;
    
fields

    myAsDes        : AsDes                     from BRepAlgo;
    myDone         : DataMapOfShapeListOfShape from TopTools;    
    myTouched      : MapOfShape                from TopTools;
    myNewEdges     : MapOfShape                from TopTools;

        -- section edges: existing edges  that are intersection lines,
        -- may be partially. 
        -- Store as 
        -- FACE -> SECTION EDGES, SECTION EDGE -> OTHER SECTION EDGE
    mySectionEdgesAD : AsDes                   from BRepAlgo;
    
    -- same domain shapes
     -- faces
    mySameDomainFM : DataMapOfShapeListOfShape from TopTools;
     -- vertex -> vertex replacement
    mySameDomainVM : DataMapOfShapeShape       from TopTools;

end Inter3d;