1DSPNT2S(3NCARG)                  NCAR GRAPHICS                 DSPNT2S(3NCARG)
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NAME

6       DSPNT2S- Interpolate at a single point (or points) in 2D in single pre‐
7       cision
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SYNOPSIS

10       CALL DSPNT2S (N, X, Y, Z, M, XO, YO, ZO, IER)
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DESCRIPTION

13       N           (Integer, Input) - The number of input data points.
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15       X           (Real, Input) - An array containing the  X  coordinates  of
16                   the input data points.
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18       Y           (Real,  Input)  -  An array containing the Y coordinates of
19                   the input data points.
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21       Z           (Real, Input) - An array containing the  functional  values
22                   of the input data points. That is, Z(L) is the value of the
23                   input function at coordinate (X(L),Y(L)), for L=1,N.
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25       M           (Integer, Input) - The number of output data  points  (this
26                   may be "1").
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28       XO          (Real,  Input)  -  An array of dimension M containing the X
29                   coordinates of the output data. The values in XO may be  in
30                   any order.
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32       YO          (Real,  Input)  -  An array of dimension M containing the Y
33                   coordinates of the output data. The values in YO may be  in
34                   any order.
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36       ZO          (Real,  Output)  -  An  array of dimension M containing the
37                   interpolated values. ZO(I) is  the  interpolated  value  at
38                   point (XO(I),YO(I)) for I=1,M.
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40       IER         (Integer,  Output)  -  An  error  return  value.  If IER is
41                   returned as 0, then no errors were detected. If IER is non-
42                   zero,  then  refer  to  the  man page for dsgrid_errors for
43                   details.
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USAGE

46       This subroutine is called when you want to interpolate at an individual
47       point or points.
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ACCESS

50       To use DSPNT2S, load the NCAR Graphics library ngmath.
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SEE ALSO

53       dsgrid, dsgrid_params.
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55       Complete documentation for Dsgrid is available at URL
56       http://ngwww.ucar.edu/ngdoc/ng/ngmath/dsgrid/dshome.html
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59       Copyright (C) 2000
60       University Corporation for Atmospheric Research
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62       This  documentation  is  free  software; you can redistribute it and/or
63       modify it under the terms of the GNU General  Public  License  as  pub‐
64       lished  by  the  Free  Software  Foundation;  either  version  2 of the
65       License, or (at your option) any later version.
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67       This software is distributed in the hope that it will  be  useful,  but
68       WITHOUT  ANY  WARRANTY;  without  even  the  implied  warranty  of MER‐
69       CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU  General
70       Public License for more details.
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72       You should have received a copy of the GNU General Public License along
73       with this software; if not, write  to  the  Free  Software  Foundation,
74       Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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79UNIX                          September 1997-1998              DSPNT2S(3NCARG)
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