Talk is not showing the first line of code. Missing first line in Google Groups post <https://groups.google.com/g/tiddlywiki/c/dDjUix6O8ic>.
On Wednesday, September 28, 2022 at 7:41:47 PM UTC-3 Charlie Veniot wrote: > Oops. The sanity check was to see that circles are proper circles for all > screen modes despite various screen aspect ratios. > > Sure enough, the circles are proper circles regardless of screen aspect > ratio. > > Which means the CIRCLE command does some fancy math to make sure that > circles don't turn into ovals when screen aspect ratios are not 1 to 1 > (i.e. 1 pixel wide to 1 pixel tall, as opposed to a 2.4 pixels wide to 1 > pixel tall, for example.) > > So the fancy and super-speedy subroutine somebody gave me to create > filled-in circles via creation of triangles, fine when in a 1:1 screen > ratio, but creates ovals otherwise. > > Anyway, that's the details of what I was investigating, just in case you > also geek out on this kind of stuff. > > On Wednesday, September 28, 2022 at 7:32:34 PM UTC-3 Charlie Veniot wrote: > >> I needed to do a sanity check to understand why the CIRCLE statement is >> so slow compared to a custom subroutine (creating circles with triangles) >> to create circles filled in with color. >> >> The interpreter I'm using does not allow variables in the screen >> statement, and I couldn't be bothered setting up that ability. >> >> To the rescue: TiddlyWiki scripting to generate the code at runtime. >> >> >> >> ``` >> <$list variable="thisScreen" filter="[range[0,2]] [range[7,21]]"> >> screen _newimage(200,200,<<thisScreen>>) >> locate 1,1 : print "screen mode: " + <<thisScreen>> >> circle (100,100), 75 >> _delay 2 >> </$list> >> ``` >> > -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/5151738e-656e-4e11-9ea8-48cb1f01dd87n%40googlegroups.com.
