1c_dspnt3d(3NCARG)                NCAR GRAPHICS               c_dspnt3d(3NCARG)
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NAME

6       c_dspnt3d - interpolate double precision 3D data at specified points
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FUNCTION PROTOTYPE

9       void c_dspnt3d(int, double [], double [], double [], double[]
10       int, double [], double [], double [], double *, int *);
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SYNOPSIS

13       void c_dspnt3d(int n, double xi[], double yi[], double zi[], double ui[],
14                      int m, double xo[], double yo[], double zo[], double *uo,
15                      int *ier)
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DESCRIPTION

18       n           The number of input data points.
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20       xi          An array containing the X coordinates of the input data
21                   points.
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23       yi          An array containing the Y coordinates of the input data
24                   points.
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26       zi          An array containing the Z coordinates of the input data
27                   points.
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29       ui          An array containing the functional values of the input data
30                   points. That is, ui[l] is the value of the input function
31                   at coordinate (xi[l],yi[l],zi[l]), for 0 <= l < n .
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33       m           The number of output data points (this may be "1").
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35       xo          An array of dimension m containing the X coordinates of the
36                   output data. The values in xo may be in any order.
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38       yo          An array of dimension m containing the Y coordinates of the
39                   output data. The values in xo may be in any order.
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41       zo          An array of dimension m containing the Z coordinates of the
42                   output data. The values in xo may be in any order.
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44       uo          A pointer to a double. Space for m doubles is allocated for
45                   uo by dspnt3d. zo[i] is the interpolated value at point
46                   (xo[i],yo[i],zo[i]) for 0 <= i < n .
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48       ier         An error return value. If *ier is returned as 0, then no
49                   errors were detected. If *ier is non-zero, then refer to
50                   the man page for dsgrid_errors.
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USAGE

53       This function is called to interpolate double precision 3D data at a
54       specified point or points.
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ACCESS

57       To use c_dspnt3d, load the NCAR Graphics library ngmath.
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SEE ALSO

60       dsgrid, dsgrid_params.
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62       Complete documentation for Dsgrid is available at URL
63       http://ngwww.ucar.edu/ngdoc/ng/ngmath/dsgrid/dshome.html
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66       Copyright (C) 2000
67       University Corporation for Atmospheric Research
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69       The use of this Software is governed by a License Agreement.
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73UNIX                          September 1997-1998            c_dspnt3d(3NCARG)
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