Recently I introduced a few “OpenStreetMap Quality Control” categories to OpenStreetBrowser:
Fix Me - All map features which have a “fixme” (or similar) tag, categorized by suffix (e.g. fixme:name) or content (e.g. “name wrong”). It can also filtered by type of feature (e.g. Shop, Road, …).
Culture - Media/Wikidata - In my opinion, each cultural map feature (artwork, memorial, tourist attraction, …) should have an image and/or a wikimedia_commons category (red=missing, light blue=set). Often, there even exists a Wikidata item (dark blue). Many memorials erroneously have the wikidata link to a person (magenta), this should most likely be a “subject:wikidata” (resp. “subject:wikipedia”) tag.
Wikipedia - This category was in the “Special” top category before. It shows all map features in the area with a wikipedia or wikidata tag (including prefixes, e.g. “subject:wikipedia” or “name:etymology:wikidata”).
If I count it as wikidata tag, I also should check if it is a person (like for wikidata) - which is not possible right now (from the wikipedia tag value, I have to load the corresponding wikidata object via some SPARQL magic). For now, I will add an extra color for this. I could also, in a next step check if the wikipedia and the wikidata tag point to the same object.
How could I forget! I also added amenity=theatre .
I now also added the check for features with a wikidata object without image.
I use this layer on my smartphone while travelling to find elements without pictures. Is there a way to filter out elements that already have a picture? Also because often I get confused by the “wikidata+image blue” and the “has wikidata tag, but wikidata object does not have an image blue”.
Uhm, not really in my case. If I filter “No image, wikimedia_commons or wikidata” I can’t see the elements with a missing image in the “has wikidata tag” (the light blue ones) and viceversa, so I would have to change filter all the time to have a complete picture of the situation.
For “cleaning up” a little bit the map it would be usefult tho to combine both the mentioned filters, so the “image or wikimedia_commons tag but no wikidata” filter would be cut off (or to just exclude this last one?).
I’m thinking more aboout a “checklist filter” rather than a “single choice filter” I guess.
Definitely, what confuses me the most are (mainly the two on the right):
I added a “no image/wikimedia_commons OR wikidata without image” filter. I hope, this is sufficient.
About the colours: do you have a suggestion for a color scheme? You could create a custom category by cloning the category. On the bottom of the code you will find the colour assignments. If you have a scheme with which you are happy with, you can copy&paste the link to your custom category. More about custom categories in my short introduction video: Custom Categories | OpenStreetBrowser - YouTube (cloning categories at 1:24).