Re: [OSM-talk] What does WGS84 mean for openstreetmap these days?

It's not quite the same thing as uncertainty in the datum itself. Crust movements simply lead to things being somewhere else relative to a global datum (aka they have moved), so a new measurement of the position for the same object would return the correct current position and theoretically if

Re: [OSM-talk] What does WGS84 mean for openstreetmap these days?

"Jóhannes Birgir Jensson" writes: > Well the current issue in Iceland is a error of 50 cm between 1993 and > 2016 due to crust movements. So it's less than 2 meters but more than > one cm. That's interesting and a useful data point for later discussion about the points that my message said this

Re: [OSM-talk] What does WGS84 mean for openstreetmap these days?

Well the current issue in Iceland is a error of 50 cm between 1993 and 2016 due to crust movements. So it's less than 2 meters but more than one cm. What is your accuracy limit if 2m is just unacceptable but a centimeter is? 19. desember 2019 kl. 17:58, skrifaði "Greg Troxel" : > Interesting

Re: [OSM-talk] What does WGS84 mean for openstreetmap these days?

Yantisa Akhadi writes: > To add more challenges to this issue is imagery offset > . The value > can even be varied from tiles to tiles, that we often need to shift the > object a couple of meters away. In a remote area, where there are

Re: [OSM-talk] What does WGS84 mean for openstreetmap these days?

To add more challenges to this issue is imagery offset . The value can even be varied from tiles to tiles, that we often need to shift the object a couple of meters away. In a remote area, where there are no GPS traces as a reference,

Re: [OSM-talk] What does WGS84 mean for openstreetmap these days?

"Jóhannes Birgir Jensson" writes: > I don't think we can or will be providing accuracy up to cm when most > of the stuff we map from our chairs is off by a meter or two anyways - > the beauty is that it doesn't matter for 99,99% of users. If a > centimeter matters then we are probably dealing

Re: [OSM-talk] What does WGS84 mean for openstreetmap these days?

Simon Poole writes: > Thus is a slightly tricky subject and it is not going away. > > For another aspect of it see > https://www.openstreetmap.org/user/StephaneP/diary/390290 Thanks -- I had not seen that. I would say that to be pedantic, there is a minor error in the post, in that OSM

Re: [OSM-talk] What does WGS84 mean for openstreetmap these days?

Hello Greg I don't think we can or will be providing accuracy up to cm when most of the stuff we map from our chairs is off by a meter or two anyways - the beauty is that it doesn't matter for 99,99% of users. If a centimeter matters then we are probably dealing with legal matters and there

Re: [OSM-talk] What does WGS84 mean for openstreetmap these days?

Thus is a slightly tricky subject and it is not going away. For another aspect of it see https://www.openstreetmap.org/user/StephaneP/diary/390290 Essentially in some cases we are using imagery that isn't actually using WGS84 as if it was (fsvo of WGS84 as you correctly point out) and we