ncl_nngetslopes - Man Page

retrieve the slope at a specified coordinate.

Synopsis

CALL NNGETSLOPES (I,J,SLOPE,IER)

Description

I

(Integer, Input) - A subscript indexing the first dimensioned variable  in the output grid of the most recent call to NATGRIDS.

J

(Integer, Input) - A subscript indexing the second dimensioned variable  in the output grid of the most recent call to NATGRIDS.

SLOPE

(Real, Output) - The slope at the grid point Z(I,J), where Z is the  output grid in the most recent call to NATGRIDS.

IER

(Integer, Output) - An error return value. If IER is returned as 0, then  no errors were detected. If IER is non-zero, then refer to the man page for natgrid_errors for details.

Access

To use NNGETSLOPES, load the NCAR Graphics library ngmath.

See Also

natgrid, natgrids, natgrid_params.

Complete documentation for Natgrid is available at URL
http://ngwww.ucar.edu/ngdoc/ng/ngmath/natgrid/nnhome.html

Info

March 1997-1998 UNIX NCAR GRAPHICS