Hi Carl, MGOS supports an image type of PNG8, which automatically reduces the bit depth of images from 24 to 8 bits as they are rendered. This can't really be used with tiled images though because each tile would have a different palette. I think that Zac did some experimentation running third-party compression tools over his tile cache? Regardless, I don't think you'll see perceived performance as high as MG 6.5 from any of the current viewers any time soon.
I would suspect that without a client that uses the (undocumented?) DWF eMap format, this will be removed from the server code. I agree with you that a rich client viewer needs something other than XML/JSON for performance though. I'm not sure how hard it would be to add a binary content type to the mapagent; I know that Haris has been thinking about this for the REST extension. There are probably other things to think about too, such as getting this content type past firewalls, performance when using within Silverlight/Flex, etc. Jason -----Original Message----- From: Carl Jokl Sent: February-23-09 1:55 AM Subject: Re: [mapguide-users] Silverlight/Moonlight Viewer One issue that has been a problem though as I have heared reported from others in the company is the matter of image compression. This hits performance on both the AJAX and DWF viewer simply because the images being sent across the internet are larger than in MapGuide 6.5. [snip] I might fear also that if the DWF view is not going to be supported anymore there might also be a case for pulling the plug on supporting transmitting the map image data from the server in DWF form too. _______________________________________________ mapguide-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapguide-users
