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FITTFT

       SUBROUTINE  FITTFT (IPTR,BARY,AREA,X,Y,P,MP,ITR,NTR)
 C$    (Triangulate - Internal Find Triangle)
 C$    Find the  triangle  containing  a  particular  point.   The
 C$    arguments are:
 C$
 C$    IPTR..............output triangle number, or 0 if not found.
 C$    BARY(3)...........barycentric coordinates of the point.
 C$    AREA..............output triangle area.
 C$    (X,Y).............point coordinates.
 C$    P(3,MP)...........(X,Y,Z) coordinates of surface data points.
 C$    MP................number of data points.
 C$    ITR(6,NTR)........triangle parameters.
 C$    NTR...............number of triangles.
 C$    (13-DEC-85)