[NTG-context] Problem with show command in MetaFun

Keith McKay mckaymeister at gmail.com
Thu Jan 7 16:41:35 CET 2021


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
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