Create Urban Database with Scanned Bitmap in Background
Besides automatic conversion of scanned bitmaps in urban vector databases, it is also possible to create the database by drawing the buildings with the map as a template in the background.
Therefore, an empty database must be created and the picture of the map must be loaded.
The buildings can now be entered with the Add Polygonal Object and Add Rectangular Object tools.
Figure 1. Map with manually drawn buildings.