-- File:        BRepMesh_ComparatorOfIndexedVertex.cdl
-- Created:     Tue Apr  5 11:45:18 1994
-- Author:      Didier PIFFAULT
--              <dpf@zerox>
---Copyright:    Matra Datavision 1994


class ComparatorOfIndexedVertexOfDelaun from BRepMesh

  ---Purpose: Sort two point in a given direction.


  uses  Boolean from Standard,
        XY from gp,
        DataStructureOfDelaun from BRepMesh

  is      Create (theDir : XY from gp; 
                  TheTol : Real from Standard;
                  HDS    : DataStructureOfDelaun from BRepMesh) 
           returns ComparatorOfIndexedVertexOfDelaun;


         IsLower (me; Left, Right: Integer)
           ---Purpose: returns True if <Left> is lower than <Right>
           returns Boolean from Standard;

         IsGreater (me; Left, Right: Integer)
           ---Purpose: returns True if <Left> is greater than <Right>
           returns Boolean from Standard;

         IsEqual(me; Left, Right: Integer)
           ---Purpose: returns True when <Right> and <Left> are equal.
           returns Boolean from Standard;


         fields  IndexedStructure : DataStructureOfDelaun from BRepMesh;
                 DirectionOfSort  : XY from gp;
                 Tolerance        : Real from Standard;

end ComparatorOfIndexedVertexOfDelaun;