I am using Josm ‘Merge Selection’ to merge some protected area boundaries and this entails using ‘Replace Geometry’ and using shared ways at some sections of the polygons. At the final gathering of all the ways and polygons, I like to check if I have collected all the polygons in the relation.

Josm gives the ‘number of members’ in the relation, which is the number of ways, but I have found it is best to also add up the number of closed polygons in the relation as a final check to ensure I have not missed any.

Normally the datasets that are obtained from shapefiles have just polygons therefore the number of polygons is readily available. I do all the splitting up of the ways (and sharing of ways) in the merged dataset.

Am I missing something obvious…are the number of polygons in a relation readily seen in addition to the number of members?

It would be nice to have a polygon count in the relations window or the relation edit window.

I use the relations edit window to count the polygons but I tend to get a bit cross-eyed after counting over 20 polygons in one relation.