cadwork swisstopo

With "cadwork swisstopo", a free extension, you can download orthophotos/maps, digital terrain models (swissALTI3D) as well as roof surfaces (swissBuildings3D) of Switzerland with just a few clicks. 

3D models can thus be embedded in their surroundings within a few minutes. One selects an area, defines parameters and can then download the desired files. The data is provided by swisstopo via an interface. 

Further modifications of the 3D data in lexocad as well as the use in 2D grundmodul and 2DR strasse is possible.

Learn in the manual or Youtube tutorial how you can use "cadwork swisstopo" for yourself.