Ted Harding <[EMAIL PROTECTED]>, 2008-02-22 11:33 -0000: > As B1/B2 are written, they simply draw the box as a series of > lines, using \D'l .... '. This does not create a "closed object" > which can be filled. > > However, if you use \D'P ... ' you will draw a polygon which > will be filled (\D'p ... ' draws a polygon which will not be > filled).
OK, the existing B2 macro definition has this:
\v'-1v+.25m'\
\D'l (u;\\n[.l]-\\n[.i]) 0'\
\D'l 0 |\\n[par*box-top]u'\
\D'l -(u;\\n[.l]-\\n[.i]) 0'\
\D'l 0 -|\\n[par*box-top]u'
...so I chage that to this:
\v'-1v+.25m'\
\D'P (u;\\n[.l]-\\n[.i]) 0 \
0 |\\n[par*box-top]u \
-(u;\\n[.l]-\\n[.i]) 0 \
0 -|\\n[par*box-top]u'
Does that look correct?
> In order to get the effect (I think) you want, you will also
> need to
> a) Before drawing the ploygon, set the colour to white so that
> the border is invisible;
> b) Set the "grey-level" of the fill using \Z'\D'f N'' where N
> is between 0 (white) and 1000 (black) [The \Z'...' is there
> to enforce zero motion -- otherwise \D'f N' causes a motion
> of amount Nu).
> c) Then draw the polygon using \D'P ... '; the result will be
> a grey-filled polygon with no visible border.
> d) Re-set the colour and the grey-level for filling before
> continuing.
OK, that all sounds pretty straightforward. But I can't seem to
actually test it because I'm not getting boxed text in PS output
even with the unmodified B1/B2 macros -- though I do get it as
expected in TTY output.
All that I did was to copy the B1 and B2 macros (unmodified) over
to a test man source file, along with the [EMAIL PROTECTED] macro (which
they seem to depend on). If I do that and then wrap some text in
the test file in B1/B2, I get the text boxed in TTY output as
expected, but not in PS output I generate with "man -l -Tps".
So before I can figure out if the modified B2 for polygon drawing
is working, I think I need to figure out why the unmodified B1/B2
for box-drawing isn't working in my PS output...
--Mike
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