TDPRPT - Given the coordinates of a point in 3-space, get the coordinates of its projection in the

       To use TDPRPT or c_tdprpt, load the NCAR Graphics libraries ncarg, ncarg_gks, and ncarg_c, preferably  in
       that order.

       The C-binding argument descriptions are the same as the FORTRAN argument descriptions.

       #include <ncarg/ncargC.h>

       void c_tdprpt(float ui3d, float vi3d, float wi3d, float *xi2d, float *yi2d)

       Copyright (C) 1987-2009
       University Corporation for Atmospheric Research
       The use of this Software is governed by a License Agreement.

UNIX                                                July 1997                                     TDPRPT(3NCARG)

       The arguments of TDPRPT are as follows:

       UI3D, VI3D, and WI3D
               (input expressions of type REAL) - the coordinates of a point in 3-space.

       XI2D and YI2D
               (output  variables  of  type  REAL)  -  the  coordinates  of  the  projection of the point in the
               projection plane.

       TDPRPT - Given the coordinates of a point in 3-space, get the coordinates of its projection in the
       projection plane.

       Online:  tdclrs,  tdctri, tddtri, tdgeti, tdgetr, tdgrds, tdgrid, tdgtrs, tdinit, tditri, tdlbla, tdlbls,
       tdline, tdlnpa, tdmtri, tdotri, tdpack, tdpack_params, tdpara, tdplch, tdprpa,  tdprpi,  tdseti,  tdsetr,
       tdsort, tdstri, tdstrs

       CALL TDPRPT (UI3D, VI3D, WI3D, XI2D, YI2D)