On Thu, Jul 21, 2011 at 4:39 PM, Alan Braslau <alan.bras...@cea.fr> wrote: > Hello, > > I have a question for metapost specialists: > > I am looking for some sort of effect, built upon a zig-zag line. > The first graphic in the minimal example below is as I would expect. > The second graphic seems to be drawn without the point at (0,0). > (Ignore the asymmetry at the end of the path in the 2nd, this > is to be expected in this minimal example.) > > Is the result correct or is this a bug? > > Alan > > > > \starttext > > \startTEXpage > \startMPcode > u := 1mm ; > > path p[] ; > p0 := ((0,0)--(1,0)) rotated 45 scaled 20u ; > pickup pensquare scaled 10u rotated 45 ; > draw p0 withcolor blue ; > pickup pensquare yscaled 2u xscaled 5u rotated 45 ; > draw p0 withcolor yellow ; > pickup pencircle scaled .1u ; > draw p0 ; > \stopMPcode > \stopTEXpage > > \startTEXpage > \startMPcode > p1 := ((0,0)--(sqrt(2),0)) rotated -30 scaled 20u > shifted point infinity of p0 ; > p2 := p0--p1 ; > > pickup pensquare scaled 10u rotated 45 ; > draw p2 withcolor blue ; > pickup pensquare yscaled 2u xscaled 5u rotated 45 ; > draw p2 withcolor yellow ; > pickup pencircle scaled .1u ; > draw p2 ; > \stopMPcode > \stopTEXpage > > \stoptext You are shifting by a certain amount : what is the net effect of shifted point infinity of p0 ?
-- luigi ___________________________________________________________________________________ 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 ___________________________________________________________________________________
