Hi,
This weekend upload has something new for metapost animation lovers:
\starttext
\startuseMPgraphic{demo}
stacking := 6;
fill fullcircle scaled 10cm
withcolor "red" ;
% stacking := 3;
stacking := 9;
fill fullcircle scaled 10cm shifted (3cm,0)
withcolor "green" ;
interim stacking := 4;
fill fullcircle scaled 10cm shifted (3cm,3cm)
withcolor "blue" ;
for i=1 upto 10 :
draw fullcircle scaled (i*cm)
withstacking 8
withpen pencircle scaled 1mm
withcolor "gray" ;
endfor ;
for i=1 upto 20 :
draw fullcircle scaled (i*cm/2)
withstacking (if odd(i) : i else : 5 fi)
withpen pencircle scaled 2mm ;
endfor ;
draw boundingbox currentpicture
withpen pencircle scaled 1pt
withstacking 0 ;
currentpicture := currentpicture xsized 15mm;
\stopuseMPgraphic
\setupMPvariables[demo]
\startTEXpage
\vskip1ex
\hbox{\space\dorecurse{10}{\useMPgraphic{demo}{list={0,#1}}\space}}
\vskip1ex \nointerlineskip
\hbox{\space\dorecurse{10}{\useMPgraphic{demo}{list={0,1-#1}}\space}}
\vskip1ex
\stopTEXpage
\stoptext
I have some more ideas but want to approach it stepwise. It bpils down
to the fact that one can put stuff on different 'layers' and optionally
flush these (by default all are flushed but the stackling order is
honored). An advantage is that one doesn't have to set up a graphic in
order (read: save pictures, flush them later on) and it is actually a
rather cheap extension in terms of runtime and overhead. Although I
could emulate it in mkiv, it is currently an LMTX only feature.
The (optional) list accepts the usual {1,2,5,7-9} kind of specification.
Hans
-----------------------------------------------------------------
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
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