[mapguide-users] PNG/PNG8 question regarding overlay transparency

Kenneth Skovhede, GEOGRAF A/S ks at geograf.dk
Mon Oct 27 11:04:20 EDT 2008

Ok, that must mean that PNG8 from AGG does not produce/support alpha 
meaning that you can't get what you want :(

You should create an enhancement ticket for it.

Regards, Kenneth Skovhede, GEOGRAF A/S

gingerbbm skrev:
> I was using Firefox exclusively. But I just checked IE and there's no
> difference.
> It's easy to see the differences by finding the GETDYNAMICMAPOVERLAYIMAGE in
> Firebug and browsing that URL directly. Swap PNG to PNG8 to see how it
> changes.
> http://.../mapguide/mapagent/mapagent.fcgi?OPERATION=GETDYNAMICMAPOVERLAYIMAGE&FORMAT=PNG...
> In fact the PNG8 overlay looks terrible because the anti-aliasing
> disappears.

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