1c_nngetslopes(3NCARG) NCAR GRAPHICS c_nngetslopes(3NCARG)
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6 c_nngetslopes - retrieve the slope at a specified coordinate.
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9 void c_nngetslopes(int, int, float *, int *);
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12 c_nngetslopes (row, column, slope, ier);
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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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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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36 To use c_nngetslopes, load the NCAR Graphics library ngmath.
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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 The use of this Software is governed by a License Agreement.
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52UNIX March 1997-1998 c_nngetslopes(3NCARG)