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Ben_on_Lemmy@lemmy.ml

what is an 'address interpolation'? (www.openstreetmap.org)

submitted 1 year ago by pootriarch@poptalk.scrubbles.tech to c/openstreetmap@lemmy.ml

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on a block of downtown san francisco, there are two block-long lines labelled 'address interpolation'. there aren't many nodes along this block, but the ones that exist mostly have explicit addresses assigned.

these were created 14 years ago (potlatch 0.10f). what do they do, are they valuable to renderers or to the map itself?

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[–] beejjorgensen@lemmy.sdf.org 10 points 1 year ago (1 children)

I don't know how it renders, but the idea was you could mark the address at the beginning of the block and the address at the end of the block, and then address finders would try to guess the intermediate addresses if anybody asked for them.

I think they've fallen out of favor and now people just add addresses to every building. Maybe.

[–] woelkchen@lemmy.world 1 points 1 year ago

the idea was you could mark the address at the beginning of the block and the address at the end of the block, and then address finders would try to guess the intermediate addresses if anybody asked for them.

Yes but when the end points have no house numbers tagged, the sole thing left is the information that one side of the street has even numbers and the other has odd numbers which is completely useless information.