[NTG-context] Clipping bug in MetaPost with MkIV

luigi scarso luigi.scarso at gmail.com
Thu Oct 30 14:36:49 CET 2008


On Thu, Oct 30, 2008 at 9:06 AM, Wolfgang Schuster <
schuster.wolfgang at googlemail.com> wrote:

> Hi,
>
> I make a hole in a MetaPost graphic and add a graphic as background but
> in MkIV I get no hole but the lines I try to remove are still visible.
>
> All files with the two results from MkII (what I want) and MkIV are in
> the attachment.
>
> \starttext
>
> \startMPcode
>
> picture temp ;
> path mask ;
>
> draw (0,1cm)--(2cm,1cm) ;
> draw (1cm,0)--(1cm,2cm) ;
>
> temp := currentpicture ;
> currentpicture := nullpicture ;
> mask := unitsquare scaled 2cm -- reverse fullsquare scaled 1cm shifted
> (1cm,1cm) -- cycle ;
> clip temp to mask ;
> currentpicture := temp ;
> draw fullsquare scaled 5mm shifted (1cm,1cm) ;
>
> temp := currentpicture ;
> currentpicture := nullpicture ;
> externalfigure "holz280.jpg" scaled 2cm ;
> addto currentpicture also temp ;
>
> \stopMPcode
>
> \stoptext
>
The same results here
Linux mark 2.6.18-1.2798.fc6 #1 SMP Mon Oct 16 14:37:32 EDT 2006 i686 i686
i386 GNU/Linux
This is LuaTeX, Version snapshot-0.30.2-2008102016, build unknown
MtxRun | current version: 2008.10.30 08:50

-- 
luigi
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