Previous: fittft Up: ../plot79_f.html Next: fittin

FITTGR

       SUBROUTINE  FITTGR (P,N,ITR,NTR,GRAD,DEN)
 C$    (Triangulate - Gradient Evaluation)
 C$    This routine sets up gradients for surfaces.  It should  be
 C$    called  after  the   triangulation  parameters  have   been
 C$    determined by routine FITTTR.  The arguments are:
 C$
 C$    P(3,N)............(X,Y,Z) coordinates of surface data points.
 C$    N.................number of data points.
 C$    ITR(6,NTR)........triangle parameters.
 C$    NTR...............number of triangles.
 C$    GRAD(2,N).........output X and Y gradients at each data point.
 C$                      See routine FITTTR for storage conservation
 C$                      remarks.
 C$    DEN(N)............scratch array.
 C$
 C$    (03-APR-82)