LBFILL(3NCARG) NCAR GRAPHICS LBFILL(3NCARG)
LBFILL - A routine that is called by LBLBAR (when the argument IFTP is non-zero) to fill
portions of the bar. The default version of this routine does color fill by calling GSFACI
and GFA. A user-written version may be supplied to do a different kind of fill.
CALL LBFILL (IFTP, XCRA, YCRA, NCRA, INDX)
IFTP (an input expression of type INTEGER) is the value of the argument IFTP from
the user's call to LBLBAR.
XCRA, YCRA (input arrays of type REAL) are real arrays containing the X and Y coordinates
of five points defining a rectangular box which is to be filled in some
manner. The fifth point defined by these arrays will always be a duplicate of
NCRA (an input expression of type INTEGER) is the number of points defining the
rectangular box. Its value will always be five.
INDX (an input expression of type INTEGER) is one of the indices from the array
LFIN, in the user's call to LBLBAR. Its value may be used as a color index or
as a pattern selector.
This routine is called by LBLBAR when LBLBAR's argument IFTP is non-zero. LBFILL is
called once for each sub-box in the label bar, using a statement of the form:
CALL LBFILL (IFTP,XCRA,YCRA,NCRA,INDX)
and is expected to fill the sub-box defined by its arguments. The default version of the
routine looks like this:
SUBROUTINE LBFILL (IFTP,XCRA,YCRA,NCRA,INDX)
CALL GSFACI (INDX)
CALL GFA (NCRA-1,XCRA,YCRA)
This version does color fill of the box, using the last argument as a color index. The
user may replace this routine with a version that does any desired sort of fill; usually,
this can be done by simply compiling the desired version, so that the default one from the
package will not be loaded.
To use LBFILL, load the NCAR Graphics libraries ncarg, ncarg_gks, and ncarg_c, preferably
in that order.
Online: labelbar, labelbar_params, lbgeti, lbgetr, lblbar, lbseti, lbsetr, ncarg_cbind
Hardcopy: NCAR Graphics Fundamentals, UNIX Version
Copyright (C) 1987-2009
University Corporation for Atmospheric Research
The use of this Software is governed by a License Agreement.
UNIX March 1993 LBFILL(3NCARG)