[Tutor] Tkinter and Antialiasing

[Wayne Watson]

I can probably get around it in this case. What I was attempting to do 
is draw radial lines out from a center. Each maybe 15 degrees apart. 
Basically compass style. With the jaggies it looks a bit odd; however, I 
can probably do this with a graphics tool, and then superimpose it on 
the image I planned to use it for. Extra work, but it should do the 
trick. Then again I can probably draw the radial lines from near the 
perimeter to have it look more like a compass, and that'll probably look 
satisfactory. Each line being maybe 10-20 pixels. I tried PILs similar 
draw methods with the same results. Tkinter probably uses them anyway. 
Maybe there's hope when the new PIL is released.

Alan Gauld wrote:
>
> "Wayne Watson" <sierra_mtnview at sbcglobal.net> wrote
>
>> If I draw a fairly slanted line across an image using Tkinter, it 
>> looks a bit jagged. Is this typical of Tkinter graphics, or is there 
>> an option or mechanism that will antialias?
>
> I think that is a feature of the canvas and its underlying code.
> I can't see any anti-aliasing features although you can of course
> render it as a smooth line, and mess around with the splines settings,
> but I don't think that will help in this case if it's a single 
> straight line.
>
> This might be an area where OpenGL or another toolkit might help.
> If its part of a graphic then generating the graphic as an image and
> loading the image into the canvas might work better.
>
> HTH,
>
>

-- 
           Wayne Watson (Watson Adventures, Prop., Nevada City, CA)

             (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
              Obz Site:  39° 15' 7" N, 121° 2' 32" W, 2700 feet  

           All the neutrons, and protons in the human body occupy 
           a cube whose is 5.52*10**-6 meters. That adds up to a 
           150 pound person. It's not a surprise that we are mostly 
           space. (Calculation by WTW)