1c_nngetslopes(3NCARG)            NCAR GRAPHICS           c_nngetslopes(3NCARG)
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NAME

6       c_nngetslopes - retrieve the slope at a specified coordinate.
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FUNCTION PROTOTYPE

9       void c_nngetslopes(int, int, float *, int *);
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SYNOPSIS

12       c_nngetslopes (row, column, slope, ier);
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DESCRIPTION

15       row         A subscript indexing the first dimensioned variable in the
16                   2D grid array returned from the most recent call to
17                   c_natgrids.
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19       column      A subscript indexing the second dimensioned variable in the
20                   2D grid array returned from the most recent call to
21                   c_natgrids.
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23       slope       *slope is the slope at the grid point z[i,j], where z is
24                   the output grid in the most recent call to c_natgrids.
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26       ier         An error value. If *ier is 0, then no errors were detected.
27                   If *ier is non-zero, then refer to the man page for
28                   natgrid_errors for details.
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USAGE

31       This routine allows you to retrieve the current value of Natgrid
32       parameters.  For a complete list of parameters available in this
33       utility, see the natgrid_params man page.
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ACCESS

36       To use c_nngetslopes, load the NCAR Graphics library ngmath.
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SEE ALSO

39       natgrid, natgrid_params, c_nngetaspects.
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41       Complete documentation for Natgrid is available at URL
42       http://ngwww.ucar.edu/ngdoc/ng/ngmath/natgrid/nnhome.html
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45       Copyright (C) 2000
46       University Corporation for Atmospheric Research
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48       This documentation is free software; you can redistribute it and/or
49       modify it under the terms of the GNU General Public License as
50       published by the Free Software Foundation; either version 2 of the
51       License, or (at your option) any later version.
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53       This software is distributed in the hope that it will be useful, but
54       WITHOUT ANY WARRANTY; without even the implied warranty of
55       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
56       General Public License for more details.
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58       You should have received a copy of the GNU General Public License along
59       with this software; if not, write to the Free Software Foundation,
60       Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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65UNIX                            March 1997-1998          c_nngetslopes(3NCARG)
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