ncl_nngetaspects man page

NNGETASPECTS — retrieve the aspect at a specified coordinate.

Synopsis

CALL NNGETASPECTS (I,J,ASPECT,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.

ASPECT

(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 NNGETASPECTS, load the NCAR Graphics library ngmath.

See Also

natgrids, natgrid_parameters.

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