On Thursday 10 January 2019, Markus wrote: > > I've replaced *nearly surrounded by water* with *surrounded by water > on the majority of its border*, but i'm unsure whether this is > clearer. If you or someone has a better idea, please tell me.
That is a fairly toothless criterion because you will very often be able to achive this simply by mapping the coastline in more detail (making it longer). A more robust and tighter criterion would be that the length of the non-water part of the boundary needs to be shorter than the square root of its area. Geometrically this limit is equivalent to a square shaped peninsula connected at one of its sides. Ultimately any such criterion is an arbitrary limit of course. Practical examples of things frequently called peninsulas that exceed this limit are the Balkan Peninsula: https://en.wikipedia.org/wiki/Balkans and the Indian subcontinent: https://en.wikipedia.org/wiki/Indian_subcontinent But i think if you really want natural=peninsula to be meaningful geometrically you need to go at least to this limit. -- Christoph Hormann http://www.imagico.de/ _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
