It is the boundary of the “Katastralgemeinde Obermallebarn”. I have got a problem here:
The forest on the left side and the green area (Golfclub) make up the boundary, but the boundary does not circle these areas. How can I correct my mistake? Do I have to take the polygon of the forest and the Golfclub and split its polygon lines, such that only the boundary parts are assigned the relation? Is there another relation type to achieve what I need?
See this image for a visual representation of my problem:
The forest and golf club boundary’s are reinstated, I think you had split them and used the split off section for your new relation. This left the forest and golf club only half drawn, I extended re-drew the old section over the existing nodes to complete the circumferences.
I think you still have a problem that the ways used in your new relation are utilising complete ways. The ways must be split so that you only use the sections relevant to your relation in it. The new relation is still not correct.
In my opinion the right solution is to draw the golf club and the forest as areas (not splitted), like they were in the beginning. The administrative boundary should be drawn as independent line tagged boundary=administrative and added to the boundary relation. There will be double lines at the edge of the forest and the golf club, but it doesn’t matter, because the type and function of them is quite different.
robert|koch → I see there is another higher level boundary. I think you should rather split that existing boundary line and add a part of it to the new relation. Of course if your data are more accurate than existing you should correct this boundary. Remember that the shared section of the boundary should be in two relations: this of higher level and your town boundary.