NAME

       TDGRDS - Draw perimeters, optionally with ticks or grid lines, on the six sides of a box. This routine
       calls TDPARA and will therefore change the definition of the reference parallelogram.

SYNOPSIS

       CALL TDGRDS (UMIN, VMIN, WMIN, UMAX, VMAX, WMAX, USTP, VSTP, WSTP, IGRT, IHID)

C-BINDING SYNOPSIS

       #include <ncarg/ncargC.h>

       void c_tdgrds(float umin, float vmin, float wmin, float umax, float vmax, float wmax, float ustp, float
       vstp, float wstp, int igrt, int ihid)

DESCRIPTION

       The arguments of TDGRDS 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.

       USTP, VSTP, and WSTP
               (input expressions of type REAL) - specify step sizes between  ticks  or  grid  lines  in  the  U
               direction,  the  V  direction, and the W direction, respectively.  If one of these values is less
               than or equal to zero, the ticks or grid lines in the associated direction are omitted.

       IGRT    (an input expression of type INTEGER)  -  of  the  form  10*IGRN+IGRF,  where  IGRN  is  a  value
               specifying  what to draw on the near sides of the box and IGRF is a value specifying what to draw
               on the far sides of the box, where "near" and "far" are as defined by the current line of  sight.
               Each  of  IGRN and IGRF can have one of the values 0 (draw nothing), 1 (draw just a perimeter), 2
               (draw a perimeter with inward-pointing ticks), or 3 (draw a perimeter with a grid). For  example,
               to  draw  grids  on the far side of the box and just perimeters on the near sides of the box, use
               IGRT = 13.

       IHID    (an input expression of type INTEGER) - set to 0 to draw only those sides of the box that  cannot
               be  hidden  by  something  inside the box or to 1 to draw only those sides of the box that can be
               hidden by something inside the box.  Standard  operating  procedure  is  to  call  TDGRDS  before
               drawing  surfaces inside a box, with IHID set to 1, and then call it again after drawing surfaces
               inside a box, with IHID set to 0.

C-BINDING DESCRIPTION

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

ACCESS

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

SEE ALSO

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

COPYRIGHT

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

UNIX                                                July 1997                                     TDGRDS(3NCARG)