-- File     : AIS2D_ProjShape.cdl
-- Created  : April  2000
-- Author   : Tanya COOL
---Copyright: Matra Datavision 2000

class ProjShape from AIS2D inherits InteractiveObject from AIS2D
 
 ---Purpose: Constructs presentable and selectable projection of 
 --          TopoDS_Shape on the view plane

uses

  Shape                 from TopoDS,
  Line                  from Graphic2d,
  ListOfShape           from TopTools,
  Projector             from HLRAlgo,
  Algo                  from HLRBRep,
  PolyAlgo              from HLRBRep,
  SetOfSegments         from Graphic2d,
  SetOfCurves           from GGraphic2d

is 

  Create returns mutable ProjShape from AIS2D;
  ---Purpose: Initializes the projected shape 

  Create( aProjector: Projector from HLRAlgo; 
          nbIsos: Integer from Standard = 3;
          isPolyAlgo: Boolean from Standard = Standard_False; 
		  visHL: Boolean from Standard = Standard_True ) 
     returns mutable ProjShape from AIS2D;
  ---Purpose: Initializes the projected shape with projector <aProjector>, number isolines <nbIsos>

  Add( me: mutable; aShape: Shape from TopoDS );
  ---Level: Public
  ---Purpose: Adds <aShape> to the list of projected shapes. 

  SetProjector( me: mutable; aProjector: Projector from HLRAlgo );
  ---Level: Public
  ---Purpose: sets the projector <aProjector>

  Projector( me ) returns Projector from HLRAlgo;
  ---Level: Public
  ---Purpose: Indicates the projector

  SetNbIsos( me: mutable; aNbIsos: Integer from Standard );
  ---Level: Internal
  ---Purpose: 

  SetPolyAlgo( me: mutable; aIsPoly: Boolean from Standard = Standard_False );
  ---Level: Internal
  ---Purpose: sets the projection of the shape as a polyhedral 
  --          simplification of the shape if <aIsPoly> is True

  SetHLMode( me: mutable; aIsHLM: Boolean from Standard = Standard_True );
  ---Level: Internal
  ---Purpose: Sets the hidden line mode if <aIsHLM> is True

  IsHLMode( me ) returns Boolean from Standard;
  ---Level: Public
  ---Purpose: Indicates the hidden lines are visible

  GetNbIsos( me ) returns Integer from Standard;
  ---Level: Public
  ---Purpose: Indicates the number of isolines

  GetIsPoly( me ) returns Boolean from Standard;
  ---Level: Public
  ---Purpose: Indicates the shape was extracted as Algo or PolyAlgo

  GetPrimitives( me ) returns Line from Graphic2d;
  ---Level: Internal
  ---Purpose: Returns the set of primitives are included into Shape, 
  --          except hidden lines

  GetHLPrimitives( me ) returns Line from Graphic2d;
  ---Level: Internal
  ---Purpose: Returns the set of hidden line primitives are included into Shape 

  ShowEdges( me: mutable; 
   aSharp, aSmooth, aSewn, anOutline, anIsoline: Boolean from Standard = Standard_True ); 
  ---Level: Public
  ---Purpose: Sets the flags for display of all types of edges


  ----------------------------------------------------------------------------
  ---Category: Private methods
 
  CreateAlgo( me: mutable ) is private;
  CreatePolyAlgo( me: mutable ) is private;
  DrawSegments( me: mutable; aShape: Shape from TopoDS; 
                aSofS: in out SetOfSegments from Graphic2d ) is private; 
  DrawCurves( me: mutable; aShape: Shape from TopoDS;
              aSofC: in out SetOfCurves from GGraphic2d ) is private; 
   
  ComputeShape( me: mutable ) is private;
 
fields 

  myListOfShape    : ListOfShape   from TopTools;
  myProjector      : Projector     from HLRAlgo;
  myAlgo           : Algo          from HLRBRep;
  myPolyAlgo       : PolyAlgo      from HLRBRep;
  myNbIsos         : Integer       from Standard;
  myIsPolyAlgo     : Boolean       from Standard;
  myIsHiddenLine   : Boolean       from Standard;
  myESharp         : Boolean       from Standard;
  myESmooth        : Boolean       from Standard;
  myESewn          : Boolean       from Standard;
  myEOutline       : Boolean       from Standard;
  myEIsoline       : Boolean       from Standard;

  mySetOfSegments  : SetOfSegments from Graphic2d;
  myHSetOfSegments : SetOfSegments from Graphic2d;
  mySetOfCurves    : SetOfCurves   from GGraphic2d;
  myHSetOfCurves   : SetOfCurves   from GGraphic2d;
									   
end ProjShape;