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

6       Csagrid is a software package in the ngmath library that implements a
7       cubic spline approximation algorithm to fit a function to input data.
8       The input for the approximation is a set of randomly-spaced data. These
9       data may be one-dimensional, two-dimensional, or three-dimensional.
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11       The output is a set of values at coordinates on a user-specified grid,
12       or at a set of user-specified points (including at a single point).
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14       Functionally equivalent Fortran, C, and NCL interfaces are provided.
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16       Csagrid is based on the work of David Fulker and his package Splpack.
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SYNOPSIS

19       Fortran one-dimensional input
20       -----------------------------
21
22        CSA1S        -  simple entry
23        CSA1XS       - expanded entry
24
25       Fortran two-dimensional input
26       -----------------------------
27
28        CSA2S        - simple entry, gridded output
29        CSA2XS       - expanded entry, gridded output
30        CSA2LS       - simple entry, list output
31        CSA2LXS      - expanded entry, list output
32
33       Fortran three-dimensional input
34       -----------------------------
35
36        CSA3S        - simple entry, gridded output
37        CSA3XS       - expanded entry, gridded output
38        CSA3LS       - simple entry, list output
39        CSA3LXS      - expanded entry, list output
40
41       C one-dimensional input
42       -----------------------------
43
44        c_csa1s        -  simple entry
45        c_csa1xs       - expanded entry
46
47       C two-dimensional input
48       -----------------------------
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50        c_csa2s        - simple entry, gridded output
51        c_csa2xs       - expanded entry, gridded output
52        c_csa2ls       - simple entry, list output
53        c_csa2lxs      - expanded entry, list output
54
55       C three-dimensional input
56       -----------------------------
57
58        c_csa3s        - simple entry, gridded output
59        c_csa3xs       - expanded entry, gridded output
60        c_csa3ls       - simple entry, list output
61        c_csa3lxs      - expanded entry, list output
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63       NCL one-dimensional input
64       -----------------------------
65
66        csa1s        -  simple entry
67        csa1xs       - expanded entry
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69       NCL two-dimensional input
70       -----------------------------
71
72        csa2s        - simple entry, gridded output
73        csa2xs       - expanded entry, gridded output
74        csa2ls       - simple entry, list output
75        csa2lxs      - expanded entry, list output
76
77       NCL three-dimensional input
78       -----------------------------
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80        csa3s        - simple entry, gridded output
81        csa3xs       - expanded entry, gridded output
82        csa3ls       - simple entry, list output
83        csa3lxs      - expanded entry, list output
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ACCESS

86       To use Csagrid entries, load the NCAR Graphics library ngmath.
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SEE ALSO

89       csagrid, csa1s, csa1xs, csa2s, csa2xs, csa2ls, csa2lxs, csa3s, csa3xs,
90       csa3ls, csa3lxs, c_csa1s, c_csa1xs, c_csa2s, c_csa2xs, c_csa2ls,
91       c_csa2lxs, c_csa3s, c_csa3xs, c_csa3ls, c_csa3lxs.
92
93       Complete documentation for Csagrid is available at URL
94       http://ngwww.ucar.edu/ngdoc/ng/ngmath/csagrid/csahome.html
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97       Copyright (C) 2000
98       University Corporation for Atmospheric Research
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100       This documentation is free software; you can redistribute it and/or
101       modify it under the terms of the GNU General Public License as
102       published by the Free Software Foundation; either version 2 of the
103       License, or (at your option) any later version.
104
105       This software is distributed in the hope that it will be useful, but
106       WITHOUT ANY WARRANTY; without even the implied warranty of
107       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
108       General Public License for more details.
109
110       You should have received a copy of the GNU General Public License along
111       with this software; if not, write to the Free Software Foundation,
112       Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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117UNIX                             January 1999                  Csagrid(3NCARG)
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