NAME

       c_css2cd - convert from lat/lon coordinates to Cartesian coordinates.

FUNCTION PROTOTYPE

           void   c_css2cd(int, double *, double *, double *, double *, double *);

SYNOPSIS

           c_css2cd(n, rlat, rlon, x, y, z);

DESCRIPTION

       n           The number of input lat/lon coordinates.

       rlat        An array containing the latitudes of the input coordinates, in degrees.

       rlon        An array containing the longitudes of the input coordinates, in degrees.

       x           An array containing the X component of the Cartesian coordinates of the output
                   data. (x[i],y[i],z[i])  is  the  Cartesian  coordinate  corresponding  to  the
                   lat/lon coordinate (rlat[i],rlon[i]) for i=0 to n-1.

       y           An array containing the Y component of the Cartesian coordinates of the output
                   data. (x[i],y[i],z[i])  is  the  Cartesian  coordinate  corresponding  to  the
                   lat/lon coordinate (rlat[i],rlon[i]) for i=0 to n-1.

       z           An array containing the Z component of the Cartesian coordinates of the output
                   data. (x[i],y[i],z[i])  is  the  Cartesian  coordinate  corresponding  to  the
                   lat/lon coordinate (rlat[i],rlon[i]) for i=0 to n-1.

USAGE

       c_css2cd  is  called  to  find  the  equivalent  Cartesian coordinates on a unit sphere to
       specified latitude and longitude coordinates.   The  coordinate  of  0.  latitude  and  0.
       longitude  is  converted  to Cartesian coordinate (1.,0.,0.). Latitudes and longitudes are
       assumed to be in degrees.  c_css2cd is a double precision version of c_css2c.

RETURN VALUE

       c_css2cd does not return a value.

ACCESS

       To use c_css2cd, load the NCAR Graphics library ngmath.

SEE ALSO

       css_overview, c_cssgrid, c_csc2sd.

       Complete documentation for Cssgrid is available at URL
       http://ngwww.ucar.edu/ngdoc/ng/ngmath/cssgrid/csshome.html

COPYRIGHT

       Copyright (C) 2000
       University Corporation for Atmospheric Research

       The use of this Software is governed by a License Agreement.