Trying to get satellite and the map portions to line up is very difficult. Trying to do it on a global scale with data from multiple sources... you get the idea.
Not really. There are loads of different projection systems & coordinate system around the world, so all GIS software is able to deal with converting coordinates and reprojections etc.
Satellite & aerial imagery always has to be georectified and made 'location aware'. Once you've done that, it's trivial to reproject it to whatever system you want.
Comments
Trying to get satellite and the map portions to line up is very difficult. Trying to do it on a global scale with data from multiple sources... you get the idea.
Not really. There are loads of different projection systems & coordinate system around the world, so all GIS software is able to deal with converting coordinates and reprojections etc.
Satellite & aerial imagery always has to be georectified and made 'location aware'. Once you've done that, it's trivial to reproject it to whatever system you want.