Problem with show command in MetaFun
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In the MWE below I would expect the "show" command to print the value of p in the console output (I use Texworks), however this does not seem to be happening. I haven't used "show" in MetaFun for a while, am I implementing it correctly? Best Wishes Keith McKay %%%%%%%% MWE %%%%%%%%% \setuppapersize[A4, portrait] \starttext \startMPpage StartPage; width := PaperWidth ; height := PaperHeight ; unit := cm ; numeric p; p := 0; for q = 0 step 1 until 10: show p; p := p + 1; fill fullcircle xyscaled(3cm,4cm) shifted ((p +2)*cm, (p + 2)*cm) withcolor red ; endfor; StopPage; \stopMPpage \stoptext
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On 1/7/2021 4:11 PM, Keith McKay wrote:
In the MWE below I would expect the "show" command to print the value of p in the console output (I use Texworks), however this does not seem to be happening. I haven't used "show" in MetaFun for a while, am I implementing it correctly?
Best Wishes
Keith McKay
%%%%%%%% MWE %%%%%%%%%
\setuppapersize[A4, portrait]
\starttext
\startMPpage
StartPage;
width := PaperWidth ; height := PaperHeight ; unit := cm ;
numeric p;
p := 0;
for q = 0 step 1 until 10:
show p;
p := p + 1;
fill fullcircle xyscaled(3cm,4cm) shifted ((p +2)*cm, (p + 2)*cm) withcolor red ;
endfor;
StopPage;
\stopMPpage
\stoptext
\enabletrackers[metapost.tracingall] but best use: message(p); ----------------------------------------------------------------- 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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Thanks Hans! I had forgotten about \enabletrackers[metapost.tracingall]. Best Wishes Keith On 07/01/2021 15:35, Hans Hagen wrote:
On 1/7/2021 4:11 PM, Keith McKay wrote:
In the MWE below I would expect the "show" command to print the value of p in the console output (I use Texworks), however this does not seem to be happening. I haven't used "show" in MetaFun for a while, am I implementing it correctly?
Best Wishes
Keith McKay
%%%%%%%% MWE %%%%%%%%%
\setuppapersize[A4, portrait]
\starttext
\startMPpage
StartPage;
width := PaperWidth ; height := PaperHeight ; unit := cm ;
numeric p;
p := 0;
for q = 0 step 1 until 10:
show p;
p := p + 1;
fill fullcircle xyscaled(3cm,4cm) shifted ((p +2)*cm, (p + 2)*cm) withcolor red ;
endfor;
StopPage;
\stopMPpage
\stoptext
\enabletrackers[metapost.tracingall]
but best use:
message(p);
----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------
participants (2)
-
Hans Hagen
-
Keith McKay