You can try to download "World altitude correction" from the Download Maps, but it only affects current altitude data. If you see spikes on the altitude graph, that result in wrong data in Uphill/Downhill fields, you can try to filter out those spikes by using a GPS filter, you can find it in the track context menu > options.
On Tuesday, May 24, 2022 at 5:11:49 PM UTC+3 rind...@gmail.com wrote: > Thank you Greg for your review and input. I think that I expressed myself > incorrectly. My issue is not the altitude value. The issue I have is the > cumulative elevation I get from OsmAnd. > I have installed GPS Test. I get the same altitude as with OsmAnd. See > attached. > But when I do a walk and record, I get the cumulative elevation totally > wrong. See attached. > I hope this clarifies my issue. > > Le mardi 24 mai 2022 à 15:18:04 UTC+2, Greg Troxel a écrit : > >> >> Rindo <rind...@gmail.com> writes: >> >> > I have tried the proposed solutions to resolve the altitude error, >> without >> > success. >> > I have tried, one at a time, with : installing the night build release, >> > installing last year release, reinstalling google play services. >> > I am still getting very large cumulative elevation errors, i. e. 350 mt >> iso >> > 50 mt, or 1200 mt iso 350 mt. >> > Do you have other suggested solutions to resolve this issue ? >> >> There are a lot of variables: Android API vs proprietary Google Play >> API, and various phones may have bugs. Plus, elevation in the Android >> API is defined as height above ellipsoid (HAE), which is not what people >> think of as elevation -- they generally want to see orthometric height >> (very roughly, above some sort of mean sea level). >> >> I recommend running GPSTest, which will show HAE and orthometric height >> using the Android API. It shows HAE, mislabeled Alt, and "WGS84 >> orthometric height", labeled not really wrong as "Alt (MSL)". >> >> Depending on where you are these will be different. But certianly not >> by 800m, and even 300m seems beyond the actual range. Around me, >> northeast US, orthometric heights values are 29m higher than HAE. >> >> (There is also MyLocation, useful for understanding network location >> providers, but it does not show elevation.) >> >> GPSTest is available on F-Droid. I am unfamiliar with the Google Play >> version. >> > -- You received this message because you are subscribed to the Google Groups "OsmAnd" group. To unsubscribe from this group and stop receiving emails from it, send an email to osmand+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/osmand/c7a042e1-06a3-48de-8778-9b8541573193n%40googlegroups.com.
