I have a problem with QGIS digitizing advanced tool plugin.
I have a landcover-like shapefile. I have to perform some corrections on it, and I have to cut or split some polygons.
I want to insert some holes (that will be filled) in a polygon. I found these instructions (http://docs.qgis.org/2.0/it/docs/training_manual/create_vector_data/topo_editing.html): "It allows you to take a hole out of a feature, as long as the hole is bounded on all side by the feature. For example, if you’ve digitized the outer boundaries of South Africa and you need to add a hole for Lesotho, you’d use this tool." The problem is that I need to digitize a hole that is not completely bounded by a single polygon. (following the above example, I had to digitize Egypt from Africa shapefile. It is not completely included in Africa, but one of its side confines with the ocean).
How can I do that?