Adjacent cemetery boundary missing

[jidanni]

Here we see adjacent cemeteries have their mutual boundary missing. Sanderson, Texas, USA. https://www.openstreetmap.org/#map=17/30.13225/-102.38676

[imagico]

Like most landcovers we don't render cemeteries with an outline. Doing so is tricky, in particular for dark features like this because of #3976.

The question is also if that would even make sense for cemeteries at all. If there are two adjacent ones without a physical separation (like fence, wall, ditch) - which could be mapped and would show up - why is the edge between the two meaningful at all?

[jidanni]

Well, just like sometimes when the Ford Company motor plant, and the Toyota Company motor plant, don't necessarily need fences or ditches to separate their properties. In times of doubt they could just pull out the map. Unless the map doesn't have the boundary on it..

You could say we must map the ground trurh. But the truth might be that there's one entrance to cemetery A, and one entrance to cemetery B, so they're definitely not the same cemetery. And everybody there knows which one is which except they might not be a big fence or anything.

They might not be like the US Canada border, where a 6 m wide "vista" must be maintained.

[imagico]

We are not aiming to display real estate ownership, we mean to display what is meaningful for the target map user. Which parts of the cemeteries are accessible from which entrance is a matter of footway mapping, not of dividing the polygon mapping of the cemetery

Our decision if to render landcover polygons with an outline or just with a fill should be guided by

• the question if the display of the geometry is meaningful in cases where it is not visible otherwise. The answer to that might occasionally be yes (like different denominations we do not distinguish by pattern) but practically this is fairly rare.
• the question if we can do so without being hard to distinguish from the rendering of physical barriers like walls and fences (see #3976) - which is difficult with the dark fill color of cemeteries.

The second question is a matter of someone demonstrating that this is practically feasible.