Hi All, Thanks for the various suggestions. I got the animation working with picts.
/Jens Axel 2014-02-17 19:50 GMT+01:00 Sean Kanaley <skana...@gmail.com>: > (define (world->image w) > (overlay (pict->bitmap (circle w)) > (empty-scene 100 100))) > > > On Mon, Feb 17, 2014 at 1:40 PM, Jens Axel Søgaard <jensa...@soegaard.net> > wrote: >> >> Hi All, >> >> Is there a way to use big-bang with picts? >> In other words, how can I convert a pict into something that big-bang >> will display? >> >> The attempt below fails with this error: >> >> collects/racket/private/class-internal.rkt:4387:0: send: no such >> method >> method name: copy >> class name: bitmap% >> >> #lang racket >> (require pict (only-in 2htdp/universe big-bang on-tick to-draw)) >> >> (define (world->image w) >> (pict->bitmap (circle w))) >> >> (big-bang 100 >> [on-tick add1] >> [to-draw world->image]) >> >> >> -- >> Jens Axel Søgaard >> >> ____________________ >> Racket Users list: >> http://lists.racket-lang.org/users > > -- -- Jens Axel Søgaard ____________________ Racket Users list: http://lists.racket-lang.org/users
