Hi Fabrice, Thanks a lot ! Indeed that does the job, which shows how wonderful Metafun is !
Best regards: Otared > On 9 Dec 2020, at 17:19, Fabrice L <fabrice.al...@gmail.com> wrote: > > Hi, > >> Le 9 déc. 2020 à 10:57, Otared Kavian <ota...@gmail.com> a écrit : >> >> Hi, >> >> I have a silly question: given two points in the plane >> z1 = (1cm,3cm) ; >> z2 = (5cm, 9cm) ; >> the command >> draw z1 -- z2 withpen pencircle scaled .5pt ; >> draws the line segment joining z1 and z2. How could I draw the line segment >> which goes a little further (say 1cm) than both the end points of this >> segment (that is in this example, a point before z1 and a point after z2 on >> the straight line) . >> Indeed it is possible to write the equation of the line and then compute by >> hand the coordinates of the new end points, but I think there is a simpler >> way in Metafun to do this. > > The shortened operation is the solution ! See MetaFun manual section 1.18 > > \starttext > \startMPpage > z1 = (1cm,3cm) ; > z2 = (5cm, 9cm) ; > draw (z1--z2) shortened -1cm withcolor blue ; > draw (z1--z2) withcolor red ; > > \stopMPpage > \stoptext > > Fabrice. > >> >> Thanks for any help: Otared >> >> >> ___________________________________________________________________________________ >> 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 >> ___________________________________________________________________________________ > > ___________________________________________________________________________________ > 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 > ___________________________________________________________________________________ ___________________________________________________________________________________ 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 ___________________________________________________________________________________
