Re: [NTG-context] Metafun: how to draw a straight line past the end points

9 Dec 2020

      Hi Aditya,

Thanks for the alternative method, which comes handy if one wishes to extend the straight line by a different amount at either end:

\starttext
\startMPcode
   z1 = (1cm,3cm) ;
   z2 = (5cm, 9cm) ;
   z3 = 1cm * dir(angle (z2 - z1)) shifted z2 ;
   z4 = -.5cm*dir(angle(z2 - z1)) shifted z1 ;
   draw z1 -- z3 ; 
   draw z4 -- z1 ;
   draw z1 -- z2 withcolor red ;
\stopMPcode
\stoptext

Best regards: Otared
...
On 9 Dec 2020, at 18:37, Aditya Mahajan  wrote:
On Wed, 9 Dec 2020, Otared Kavian wrote:
...
Thanks a lot ! Indeed that does the job, which shows how wonderful Metafun is !
Or, if you want to use high school algebra:
\starttext
\startMPcode
   z1 = (1cm,3cm) ;
   z2 = (5cm, 9cm) ;
   z3 = 1cm * dir(angle (z2 - z1)) shifted z2;
   draw z1 -- z3 ; 
   draw z1 -- z2 withcolor red;
\stopMPcode
\stoptext
Aditya
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki     : http://contextgarden.net
___________________________________________________________________________________