In the previous post I showed how to position Silverlight UIElements at a Location to create pushpins with the Virtual Earth Silverlight Map Control CTP . You can also position content in a scalable manner using the MapLayer.MapRectangle attached property. For example, the following code will position a scalable video on the Map by specifying the bounding box in LocationRect coordinates – by specifying the Location of the corners of the bounding box.
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Virtual Earth Silverlight Map Control CTP – Put Scalable Content on the Map