Have you simply try implement a custom map type class that supports
show/hide/opacity? in V3 you get hold on the actual tile element so
all can be done relatively easily.

On Jul 21, 6:31 am, Kesuke <nick_dai...@hotmail.com> wrote:
> I'm moving a project from V2 to V3 and am having some trouble showing
> and hiding custom overlays (added using overlayMapTypes).
>
> In V2 it was a pretty straightforward job of using the show() and
> hide() methods that were part of the GLayer class. But in V3 i'm not
> sure how to go about the same thing as this has changed quite a bit.
> I've checked the V3 reference and search but am still a little
> confussed.
>
> Examples are online at:
>
> V2:http://anatomy.study-medicine.co.uk/testn6.html
> V3:http://anatomy.study-medicine.co.uk/testg3t2.html
>
> On the V2 example, if you go to the 'trunk' tab under the navigation
> button you will see two selectable layers. These can be shown and
> hidden. I would like to achieve the same effect using V3.

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