1c_csc2sd(3NCARG)                 NCAR GRAPHICS                c_csc2sd(3NCARG)
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NAME

6       c_csc2sd - convert from Cartesian coordinates to lat/lon coordinates.
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FUNCTION PROTOTYPE

9           void   c_csc2sd(int, double *, double *, double *, double *, double *);
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SYNOPSIS

13           c_csc2sd(n, x, y, z, rlat, rlon);
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DESCRIPTION

17       n           The number of input Cartesian coordinates.
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19       x           An  array containing the X component of the Cartesian coor‐
20                   dinates of the input data. (rlat[i],rlon[i]) is the lat/lon
21                   coordinate   corresponding   to  the  Cartesian  coordinate
22                   (x[i],y[i],z[i]) for i=0 to n-1.
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24       y           An array containing the Y component of the Cartesian  coor‐
25                   dinates of the input data. (rlat[i],rlon[i]) is the lat/lon
26                   coordinate  corresponding  to  the   Cartesian   coordinate
27                   (x[i],y[i],z[i]) for i=0 to n-1.
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29       z           An  array containing the Z component of the Cartesian coor‐
30                   dinates of the input data. (rlat[i],rlon[i]) is the lat/lon
31                   coordinate   corresponding   to  the  Cartesian  coordinate
32                   (x[i],y[i],z[i]) for i=0 to n-1.
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34       rlat        An array containing the latitudes  of  the  output  coordi‐
35                   nates, in degrees.
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37       rlon        An  array  containing  the longitudes of the output coordi‐
38                   nates, in degrees.
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USAGE

41       c_csc2sd is called to find the equivalent lat/lon coordinates to speci‐
42       fied  Cartesian coordinates on a unit sphere.  The Cartesian coordinate
43       (1.,0.,0.) is converted to lat/lon coordinate  (0.,0.).  Latitudes  and
44       longitudes  are  assumed to be in degrees.  c_csc2sd is a double preci‐
45       sion version of c_csc2s.
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RETURN VALUE

48       c_csc2sd does not return a value.
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ACCESS

51       To use c_csc2sd, load the NCAR Graphics library ngmath.
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SEE ALSO

54       css_overview, c_cssgrid, c_csc2s.
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56       Complete documentation for Cssgrid is available at URL
57       http://ngwww.ucar.edu/ngdoc/ng/ngmath/cssgrid/csshome.html
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60       Copyright (C) 2000
61       University Corporation for Atmospheric Research
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63       The use of this Software is governed by a License Agreement.
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67UNIX                               MAY 2000                   c_csc2sd(3NCARG)
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