On Friday 04 July 2003 07:36 am, Lic. Edgar J. De Cleene wrote:

> You could test color in world withour using e- toys like in a
> following.
>
> [(World colorAt: (self center)
>         belowMorph: self) = Color yellow]
>
>
> Replace self center for choosen point of control.

But that doesn't work on the turtle trails, as far as I can tell. The 
implementation of PasteUpMorph>>patchAt:without:andNothingAbove: just 
does a background fill and draws the submorphs. It skips the 
turtleTrailsForm completely (unlike drawOn:).

-- 
Ned Konz
http://bike-nomad.com
GPG key ID: BEEA7EFE