CSS2CD - convert from lat/lon coordinates to Cartesian coordinates.

       To use CSS2CD, load the NCAR Graphics library ngmath.

       Copyright (C) 2000
       University Corporation for Atmospheric Research

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

UNIX                                                MAY 2000                                      CSS2CD(3NCARG)

       N           (integer, input) The number of input lat/lon coordinates.

       RLAT        (double precision, input) An array containing the latitudes of the input coordinates.

       RLON        (double precision, input) An array containing the longitudes of the input coordinates.

       X           (double  precision,  output) 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=1 to N.

       Y           (double precision, output) 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=1 to N.

       Z           (double  precision,  output) 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=1 to N.

       CSS2CD - convert from lat/lon coordinates to Cartesian coordinates.

       css_overview, cssgrid, csc2sd, css2c.

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

       CALL CSS2CD (N, RLAT, RLON, X, Y, Z)

       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.   CSS2CD  is  a  double
       precision verson of CSS2C.