Change ImageMapType options dynamically

[Pablo Gallardo]

I am trying to change opacity of ImageMapType's tiles dynamically (in
the example I'm using a button, but the final idea is to add an slider
that controls opacity).

When pushing the button, opacity is set to 0, but only for the new
tiles. The old ones remains the same.

I have thought of hiding and showing the overlay, but I guess there
should be an smarter way... Is there a way to refresh ImageMapType's
options?

http://cort.as/08iO

This has been based on Davide Cremonesi's example:
http://neogismap.appspot.com/wms/index.html . Thanks in advance. ;)

[Chad Killingsworth]

Have you tried:

imgMapType.set('opacity', '0.1');

Chad Killingsworth

[Pablo Gallardo]

Thank for you the answer Chad. I have tried that line and I get the
Javascript error "Object doesn't support this property or method".

I had already observed this when inspecting code with FireBug: opacity
property didn't exist for imgMapType object, but it existed for
imgMapType.b .

On Aug 23, 2:09 pm, Chad Killingsworth

[Pablo Gallardo]

I guess that my problem has been answered in the following topic.
ImageMapType is designed for static images, so I should use a Custom
Map Type in order to achieve the functionaly I was looking for.

http://groups.google.com/group/google-maps-js-api-v3/browse_thread/thread/f333ea8b2cbf53c9/56049b3edd2a60e6?lnk=gst&q=refresh+custom+map+type#56049b3edd2a60e6