I have a shapefile displaying the borders of several city units. One of its polygons, however, had free space consisting of four vertices in it. I created another polygon inside the free space and then used
Dissolve to close the free space. The result was the following layer which still contains some errors (see the close-ups below).
Is the best way to resolve this in QGIS 2.2 using some kind of
The entire data seems to be corrupted. Using
Dissolve on the entire shape results in what the fourth screenshot shows.