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 ___________________________________________________________________________________