southWestCorner = .TRUE.
IF ( southWestCorner ) THEN
& southWestCorner, southEastCorner
southWestCorner = .FALSE.
LOGICAL southWestCorner
southWestCorner = exch2_isWedge(myTile).EQ.1
if(southWestCorner.and.i.eq.1.and.j.eq.0) Dmj=hDiv(0,1)
if(southWestCorner.and.i.eq.0.and.j.eq.1) Dim=hDiv(1,0)
LOGICAL southWestCorner, southEastCorner