Transparency

QuestionToBeAnswered


I tried to overlay transparent gif tiles over the map and they don't render transparent. They render white. Has anyone tried to put transparent gifs over the map

SoulSolutions


Do mean as in tiles from Mapcruncher using the new functionlaity or some custom code
Can you use PNG instead
John.

QuestionToBeAnswered

I have a custom webservice that creates transparent gif images. However when the transparent gif images are placed on the map the transparent portion or the image is rendered white. This is not the case in firefox. It is like this in IE. Does anyone know how to fix this issue or weather its b bug in the Virtual Earth code.

BrianHearn

I am having the same problem with transparent GIF overlay tiles...

The problem occurs in IE6 and IE7 rc1 but not in FireFox. I suspect it is due to the custom filter that is applied to the containing element (tile) to support opacity. Firefox and IE use different approaches. If the opacity filter is not going to work in IE, due to an IE limitation, than the VE script for tile overlay handling should not use it when the user specifies fully opaque. That way we can at least render transparent GIF tiles at full opacity. I hope this gets resolved soon as this is a major flaw with the current version.

Caleb T - MSFT

Thanks to both of you for reporting this. We're invesitgating and I'll keep you posted.

Caleb

bentonb

We were hoping that v4 would solve the weird gif and png transparency problem in IE7...

http://server1.ischosting.net/mapdotnetserver%20output/clippingex.jpg

We never saw this problem in FF.

Is there a timeline for a fix By chance, do you have any release notes with bug fixes listed

The 3D implementation looks awesome.

Benton

lewisharvey

Has there been any developments on this I am having the very same trouble. It works ok on the 3D mapping, just not on the 2D.


Regards,


Lewis Harvey.

Lewis Harvey

Guys,

I have fixed this issue, it's to do with the Alpha Transform MS use to load our custom tiles.
The full code and explanation can be found here on my blog.

Let me know if anyone needs any clarification.

Regards,


Lewis Harvey

StringMon

Unfortunately, that fix doesn't work for IE6 at all, I believe due to its poor handling of transparent images generally. Also, the comment on your blog claiming it's been fixed in V4 doesn't seem to apply to IE6 either. Just FYI.

So, does anyone have any other ideas about how this might be addressed I've tried with GIFs and PNGs from 2 different graphics libraries, same results across the board. I've spent the last day and a half trying to work around this bug from a lot of different directions, with no luck yet.

Sterling

Derrick

There's an offered solution on this thread.

http://forums.microsoft.com/MSDN/ShowPost.aspx PostID=804699&SiteID=1