The title describes the basic issue. We have two problems, the first is a source of the high quality 3D imagery, that the gEarth plugin provided. The 45° angle aerial data that both Google and Bing provide is adequate for our uses for now, but down the road we would like to upgrade to true 3D imagery that gEarth provided.
Secondly, we need a way to draw 3D objects over the top of that view, which we were able to do in gEarth using 3D KML.
Because we are hoping that Google will eventually provide access to the 3D views that gEarth once provided, our preference is develop using the gMaps API with their 45° aerial data for now with the idea that can update the '45° Aerial view' to 'Earth-view' at a later date.
We are looking at a variety of WebGL frameworks for the 3D drawing, my question is: can we use Cesium for this? It appears that we can use a variety of sources for imagery but I read also there appeared to be restrictions with Google's data.
Any advice appreciated!