Re: How to center a circle?

* Helmut Giese <hgiese@ratiosoft.com>
| The screen shots are now on https://imgbb.com/
| with the URLs:
| TkPath: https://ibb.co/gg6XsRm
| Tk:     https://ibb.co/LkGg9mv
| Apart from the rugged edge in Tk they look pretty identical to me.
| And to me the left and top edges are significant smaller than their
| right and bottom counter parts - about less than half I would say.

Ok, this is the same what I see.  I was not sure whether this small
difference already counts as 'big' :-p

As I said, they get 'more centered' if you adjust the coordinates by +1:

    set x1 [expr {$width * 0.04 +1}]
    ...
    set x2 [expr {$width - $width * 0.04 +1}]

I can only guess as what might be the reason, but my €0.01 would go to a
combination of coordinate origin, rounding effects, DPI of the display,
phase of the moon, and of course currently the comet.

R', just kidding for the last two... ;-)