sent from a phone
> On 7. Oct 2018, at 16:32, OSMDoudou
> <19b350d2-b1b3-4edb-ad96-288ea1238...@gmx.com> wrote:
>
> But it doesn't work with selecting two nodes of a closed way. You would need
> to first split the segment from the building, draw the barrier and close the
> building way again, which is far from straightforward.
this would have been my suggestion as well: draw in snapping mode and then
delete the helper geometry you only needed to add to make snapping work.
In general there is no “perfection” of man made objects in the real world,
walls don’t get built with subcentimeter precision, and we usually do not have
better positional accuracy than a few meters in our mapping, so this is mostly
an academic exercise anyway.
Cheers, Martin