Re: double followtokens?

[Hans Hagen <j.hagen@xs4all.nl>]

On 4/8/2018 12:11 AM, Pablo Rodriguez wrote:
> On 04/07/2018 11:25 PM, Hans Hagen wrote:
>> On 4/7/2018 11:04 PM, Pablo Rodriguez wrote:
>>> Dear list,
>>>
>>> I have the following sample:
>>>
>>>     \useMPlibrary[txt]
>>>
>>>     \starttext
>>>
>>>     \startuseMPgraphic{followtokens}
>>>      path RotPath ; RotPath := reverse halfcircle ;
>>>      % path RotPath ; RotPath := halfcircle rotatedaround (origin, 180) ;
>>>     \stopuseMPgraphic
>>>
>>>     \followtokens{Just follow the tokens}
>>>     \stoptext
>>>
>>> How can I get both paths (in diverse directions)?
>>>
>>> I would like to repeat the same text twice, separating both sentences
>>> with a character.
>>>
>>> I have to ask this, beause MetaPost is all Greek to me.
>> i have no clue what you mean but this will change the direction
> 
> Many thanks for your reply, Hans.
> 
> I attach an image of what I mean.
> 
> I want a full circle in two halves with the same duplicated sentence.
> The first one written clockwise and the second one written
> counterclockwise (as in the commented path above).
> 
> I hope it is clearer now.

     path p ; p := reverse halfcircle scaled 5cm ;
     path q ; q := reverse halfcircle scaled 5cm rotated 180 ;

     path q ; q := reverse halfcircle scaled 5cm rotated 180 ;

     \followtokens{~this way~}
     \followtokens{\reversedtext{~this way~}}

we will have this in metafun:

     followtext("this way",p) ;

so that one can do it all in mp ... a nice gimmick for the ctx meeting

Hans


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                                           Hans Hagen | PRAGMA ADE
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