Re: [Groff] pic: "shaded" problem

[Keith MARSHALL]

Ole Schoening wrote:
> .PS
> .fam H
> boxrad=0.15
> box shaded "green" width 1.5  "test test" ;
> .PE
>
> produces no shaded green box (with round corners) but a "normal" one
> without special colours. If I omit the "boxrad" command, then the
> box will be shaded correctly. Typing "box rad 0.15 shaded ..."
> delivers the unwanted result as well. I got these results with groff
> 18.1 under cygwin as well as with gr0ff 19.2 for windows. Does
> anybody have a solution for this problem, how to get round corners
> together with colours?

For me, also with groff-1.19.2 on MS-Windows, this gives rounded
corners, but no shading; is this what you meant?

Looks like you've discovered a bug in pic's shading code; it doesn't
seem to work for round cornered boxes, at least on the Win32 platform.
I've managed to achieve the effect I think you want, with the following
quick and very dirty, and hideously ugly workaround:--

.PS
.fam H
boxrad = 0.15
[ box rad 0 width 1.5-2*0.15 shaded "green" invisible
  circle at last box.nw-(0.0,0.15) rad 0.15 shaded "green" invisible
  circle at last box.sw+(0.0,0.15) rad 0.15 shaded "green" invisible
  circle at last box.ne-(0.0,0.15) rad 0.15 shaded "green" invisible
  circle at last box.se+(0.0,0.15) rad 0.15 shaded "green" invisible
]
box at last [].c width 1.5 height last [].height - 2.0*0.15 rad 0 \
  shaded "green" invisible
box at last [].c width 1.5 "some text"
.PE

Perhaps you could develop this into a macro, to work around the bug.

HTH.

Keith.