TDLBLS - Draw labels on selected sides of a projected box. This routine calls TDPARA and will therefore

       To use TDLBLS or c_tdlbls, 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_tdlbls(float umin, float vmin, float wmin, float umax, float vmax, float wmax, char* unlb, char*
       vnlb, char* wnlb, char* uilb, char* vilb, char* wilb, int ipck)

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

UNIX                                                July 1997                                     TDLBLS(3NCARG)

       The arguments of TDLBLS are as follows:

       UMIN, VMIN, WMIN, UMAX, VMAX, WMAX
               (input  expressions  of type REAL) - coordinate values defining the box in 3-space.  The names of
               these should make it clear what they are.

       UNLB, VNLB, and WNLB
               (input, of type CHARACTER) - these strings contain numeric labels to be placed on a U axis,  a  V
               axis,  and a W axis, respectively.  The labels need not be in any particular order, but they have
               to be separated by blanks and each has to be readable using a FORTRAN format of the form  "En.0",
               where "n" is the length of the label.

       UILB, VILB, and WILB
               (input,  of  type CHARACTER) - these strings contain informational labels for a U axis, a V axis,
               and a W axis, respectively.

       IPCK    (an input expression of type INTEGER) - determines which edges of the box are labelled.  If  IPCK
               is  zero,  all  six  outer  edges  are  labelled,  but  if IPCK is non-zero, only three edges are
               labelled, one set of three if IPCK is negative, a different set if IPCK is positive.

       TDLBLS - Draw labels on selected sides of a projected box. This routine calls TDPARA and will therefore
       change the definition of the reference parallelogram; it also changes the value of the internal parameter
       'CS2'.

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

       CALL TDLBLS (UMIN, VMIN, WMIN, UMAX, VMAX, WMAX, UNLB, VNLB, WNLB, UILB, VILB, WILB, IPCK)