Peace Jerome <peace_the_dreamer at yahoo.com> wrote:

> Frank wrote:

> >Thus my question: How can I have the
> >balloon text show up when the mouse
> >hovers anywhere within the bounds of
> >the polygon?

<snip>

> The key here is the transparency of the polygon. Try
> using a translucent one instead. (White at 5%
> translucency is pretty close to transparent.). I just
> tried this in 3.9-6542 and had no problem getting the
> balloons. 
> 
> The polygon keeps track of its holes and where it is
> transparent it is not there for the mouse/hand to see.
> This may be a bug but it probably won't be an easy one
> to fix.  So I suggest the work around.

Ah great. Perfect! Thanks! In fact, using an almost-transparent region has a pleasing side effect - one can immediately see any overlapping regions because they're less translucent. (I think that's the right terminology - the overlapping region has a higher #alpha, at any rate.)

I reckon it's inappropriate to change PolygonMorph - the current behaviour's spot-on since a PolygonMorph represents a polygon, not a polygonal region. Yep, Color white alpha: 0.05 is the answer for me!

frank


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