Re: performance of goocanvas

[dmg <dmg uvic ca>]

On Wed, Nov 20, 2013 at 8:32 PM, Damon Chaplin <damonachaplin gmail com> wrote:
> I don't think the problem is drawing. I put a "return;" statement at the
> top of the GooCanvasPolyline's draw function so it didn't draw anything,
> but it was just as slow!
>
> I think the problem may be that you are sometimes changing items when
> the canvas is scrolled, and this causes the canvas to have to
> recalculate the bounds of lots of items, which is slow.
>
> What changes are you making when the canvas is scrolled? Is there a way
> to avoid them?


Thanks Damon, I will check and investigate and get back .

I _really_ appreciate the time you took to do this.

--daniel

-- 
--dmg

---
Daniel M. German
http://turingmachine.org