Hello everyone!

Im trying use the balloon canvas to draw some nice smooth anti aliased lines, 
but now i seem to have hit upon a bug which i dont know how to fix.

if i draw just lines i get everything i want.  but if i add a “drawString:…” in 
there at any point, all the lines i try to draw subsequently dont show up.

Here is code that shows the exact issue:

> form := Form extent: 100@100 depth: 32.
> form fillWhite.
> canvas := BalloonCanvas on: form.
> canvas aaLevel: 4.
> "canvas := FormCanvas on: form."
> points := { {10@10 . 50@43} . {50@42 . 90@75} . {90@75 . 50@90 } }.
>
> points do: [ :p |
>    canvas drawPolygon: p
>       color: Color transparent
>       borderWidth: 1
>       borderColor: Color red.
>
>    canvas drawString: p first asString
>       at: p first
>       font: nil
>       color: Color green.
> ].
>
> morph := ImageMorph new.
> morph image: form.
> morph openCenteredInWorld.


if i comment out the canvas drawstring i get what you would expect: a squiggly 
line.

if i add in the drawstring, the first line shows up but all the subsequent 
lines do not get drawn.  (both images attached)

I spent a bunch of time tracking it down to its most purest form and then a 
bunch of time debugging it and im out of my depth with the baloon code, i cant 
seem to figure out whats wrong.  if anyone knows whats wrong or can give me a 
clue on how to fix it i’d greatly appreciate it.

thanks in advance.


{ jb }

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