Hello,

if possible to include a raster base as a basis for the sketch of the geodetic network, for example from google maps of the earth, or maybe some world lucky guy who has raster bases.

There are some libraries that allow for including Google-maps or OSM-maps. However, I'm not familiar with such libraries and I don't like to have strong dependencies to a special services (like Google, Bing or OSM).

/Micha