Ah, lovely! Who knew there would be so many different solutions? I'm going to use Nicola's solution on this occasion, as it fits my thought process best -- but thanks to Troy as your solutions showed me some other things I didn't know.
All the best, James On Fri, Feb 26, 2010 at 9:42 PM, Nicola <nvitacolo...@gmail.com> wrote: > In article > <771da05a1002251718l55669a0co770b5a78bed84...@mail.gmail.com>, > James Fisher <jameshfis...@gmail.com> wrote: > >> This isn't specifically a ConTeXt question, but via it I've run into a >> seemingly simple problem in METAPOST that I just can't solve. I'm >> trying to draw a parallelogram by specifying: (1) the length of sides >> parallel to the x-axis; (2) the total height of the figure; (3) one of >> the interior angles. > > Curiously enough, nobody has posted a solution that uses 'whatever', so > here it is: > > z0 = origin; % bottom left > z1 = (5,0); % bottom right > y3 = y2 = 10; > z3 = z0 + whatever*dir(87); % z3 is obtained by starting at z0 and > % moving along dir(87) > z2-z1 = whatever*(z3-z0); % The line z1--z2 is parallel to z0--z3 > > That is, what you were trying to achieve: > > angle(z3-z0) = dir(87); > > can be written instead: > > z3 - z0 = whatever*dir(87); > > Nicola > > ___________________________________________________________________________________ > 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://tex.aanhet.net > archive : http://foundry.supelec.fr/projects/contextrev/ > 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://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________
