1DSPNT3D(3NCARG)                  NCAR GRAPHICS                 DSPNT3D(3NCARG)
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NAME

6       DSPNT3D- Interpolate at a single point (or points) in 3D in double pre‐
7       cision
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SYNOPSIS

10       CALL DSPNT3D (N, X, Y, Z, U, M, XO, YO, ZO, UO, IER)
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DESCRIPTION

13       N           (Integer, Input) - The number of input data points.
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15       X           (Double precision, Input) - An array containing the X coor‐
16                   dinates of the input data points.
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18       Y           (Double precision, Input) - An array containing the Y coor‐
19                   dinates of the input data points.
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21       Z           (Double precision, Input) - An array containing the Z coor‐
22                   dinates of the input data points.
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24       U           (Double  precision,  Input) - An array containing the func‐
25                   tional values of the input data points. That  is,  U(L)  is
26                   the   value   of   the   input   function   at   coordinate
27                   (X(L),Y(L),Z(L)), for L=1,N.
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29       M           (Integer, Input) - The number of output data  points  (this
30                   may be "1").
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32       XO          (Double  precision,  Input)  - An array of dimension M con‐
33                   taining the X coordinates of the output data. The values in
34                   XO may be in any order.
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36       YO          (Double  precision,  Input)  - An array of dimension M con‐
37                   taining the Y coordinates of the output data. The values in
38                   YO may be in any order.
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40       ZO          (Double  precision,  Input)  - An array of dimension M con‐
41                   taining the Z coordinates of the output data. The values in
42                   ZO may be in any order.
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44       UO          (Double  precision,  output) - An array of dimension M con‐
45                   taining the interpolated values. UO(I) is the  interpolated
46                   value at point (XO(I),YO(I),ZO(I)) for I=1,M.
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48       IER         (Integer,  Output)  -  An  error  return  value.  If IER is
49                   returned as 0, then no errors were detected. If IER is non-
50                   zero,  then  refer  to  the  man page for dsgrid_errors for
51                   details.
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USAGE

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

58       To use DSPNT3D, load the NCAR Graphics library ngmath.
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SEE ALSO

61       dsgrid, dsgrid_params.
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63       Complete documentation for Dsgrid is available at URL
64       http://ngwww.ucar.edu/ngdoc/ng/ngmath/dsgrid/dshome.html
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67       Copyright (C) 2000
68       University Corporation for Atmospheric Research
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70       This  documentation  is  free  software; you can redistribute it and/or
71       modify it under the terms of the GNU General  Public  License  as  pub‐
72       lished  by  the  Free  Software  Foundation;  either  version  2 of the
73       License, or (at your option) any later version.
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75       This software is distributed in the hope that it will  be  useful,  but
76       WITHOUT  ANY  WARRANTY;  without  even  the  implied  warranty  of MER‐
77       CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU  General
78       Public License for more details.
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80       You should have received a copy of the GNU General Public License along
81       with this software; if not, write  to  the  Free  Software  Foundation,
82       Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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87UNIX                          September 1997-1998              DSPNT3D(3NCARG)
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