1NNGETASPECTS(3NCARG) NCAR GRAPHICS NNGETASPECTS(3NCARG)
2
3
4
6 NNGETASPECTS - retrieve the aspect at a specified coordinate.
7
9 CALL NNGETASPECTS (I,J,ASPECT,IER)
10
12 I (Integer, Input) - A subscript indexing the first dimen‐
13 sioned variable in the output grid of the most recent call
14 to NATGRIDS.
15
16 J (Integer, Input) - A subscript indexing the second dimen‐
17 sioned variable in the output grid of the most recent call
18 to NATGRIDS.
19
20 ASPECT (Real, Output) - The slope at the grid point Z(I,J), where
21 Z is the output grid in the most recent call to NATGRIDS.
22
23 IER (Integer, Output) - An error return value. If IER is
24 returned as 0, then no errors were detected. If IER is non-
25 zero, then refer to the man page for natgrid_errors for
26 details.
27
29 To use NNGETASPECTS, load the NCAR Graphics library ngmath.
30
32 natgrids, natgrid_parameters.
33
34 Complete documentation for Natgrid is available at URL
35 http://ngwww.ucar.edu/ngdoc/ng/ngmath/natgrid/nnhome.html
36
38 Copyright (C) 2000
39 University Corporation for Atmospheric Research
40
41 The use of this Software is governed by a License Agreement.
42
43
44
45UNIX March 1997-1998 NNGETASPECTS(3NCARG)