DPLINE - Draws a straight-line segment between two points in the user coordinate system.

       To use DPLINE or c_dpline, 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_dpline (float xcp1, float ycp1, float xcp2, float ycp2);

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

UNIX                                               March 1995                                     DPLINE(3NCARG)

       XCP1        (an  input expression of type REAL) specifies the X coordinate of a point at the beginning of
                   the straight-line segment.

       YCP1        (an input expression of type REAL) specifies the Y coordinate of a point at the beginning  of
                   the straight-line segment.

       XCP2        (an  input  expression  of type REAL) specifies the X coordinate of a point at the end of the
                   straight-line segment.

       YCP2        (an input expression of type REAL) specifies the Y coordinate of a point at the  end  of  the
                   straight-line segment.

       Use the ncargex command to see the following relevant examples: tdshpk.

       DPLINE - Draws a straight-line segment between two points in the user coordinate system.

       Online:  dashpack,  dashpack_params,  dpcurv,  dpdraw,  dpfrst,  dpgetc,  dpgeti, dpgetr, dplast, dpsetc,
       dpseti, dpsetr, dpsmth, dpvect, ncarg_cbind.

       Hardcopy: None.

       CALL DPLINE (XCP1,YCP1,XCP2,YCP2)

       DPLINE  maps  the  input coordinates to the fractional system and then passes them on to DPDRAW.  Even is
       smoothing is turned on, no smoothing is done by a call to DPLINE.