That guy isn't overlaying a BubbleChart onto Google Maps, he is doing some custom thing that has nothing to do with BubbleCharts. The long and short of it is that there is no known means of getting around the transparency problem in IE 8 with the Visualization API.
On Saturday, May 4, 2013 2:07:25 AM UTC-4, tnt...@yahoo.com wrote: > > Hello... > > I know there are limitations with IE for background transparency.. and > everything I have tried to get past it has failed. > In chrome I am able to set: > > backgroundColor: 'transparent', > > and overlay the bubble chart over another layer that contains an image to > get a background image for my bubble chart. Is there any way to work around > this or cheat to get the same results in IE 8?. I am essentially just > trying to have the bubbles generated over an image. I have seen other > examples where the bubbles are rendered over google maps, so I am hopeful > that somebody might have an idea. > > here is the example where the bubbles are displayed over google maps, and > this works in IE 8: > > http://carlvlewis.net/?p=2422 > > Thank you in advance for any help !! > -- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-visualization-api+unsubscr...@googlegroups.com. To post to this group, send email to google-visualization-api@googlegroups.com. Visit this group at http://groups.google.com/group/google-visualization-api?hl=en. For more options, visit https://groups.google.com/groups/opt_out.