incorrect elevation data
Answered
I recently changed my phone
I recorded a track during an hike and I got 14,25km elevation +1191 - 1179m
that for me was clearly overestimated
I loaded the same gpx file in mapy.cz and it's giving me 14,2km +919 -919m
Same gpx in Wikiloc 14,23km +716 -716m
The more realistic data is about +-800m so wikiloc and mapy are approximately correct.
Why locus is overestimating in such a way the elevation data it shows me?
Settings are
setup->settigns->gps&sensors->altitute manager
altitude offset automatic correction
elevation data optimize GPS values
altitude filter light
track recording->recording profile
parameters
distance interval 10m
time interval 10s
distance and time
required gps accuracy 100m
The same question
Hi,
Locus Map processes elevation gain from the data it receives from your phone's GPS. The resulting elevation gain is also incorrect if the data is incorrect or contains huge deviations. Locus Map, however, offers a few methods to limit these deviations.
Open Locus settings > GPS&sensors:
More info: https://docs.locusmap.app/doku.php/manual:faq:wrong_gps_data
Hi,
Locus Map processes elevation gain from the data it receives from your phone's GPS. The resulting elevation gain is also incorrect if the data is incorrect or contains huge deviations. Locus Map, however, offers a few methods to limit these deviations.
Open Locus settings > GPS&sensors:
More info: https://docs.locusmap.app/doku.php/manual:faq:wrong_gps_data
Ok, so is it the GPS sensor of my new phone too sensible?
Why the same gpx I created loaded in mapy or wikiloc gives more realistic elevation?
I did all the changes in settings you suggested, I went on my library, selected the track, tools, update elevation and.... nothing changes in the details of the track
Ok, so is it the GPS sensor of my new phone too sensible?
Why the same gpx I created loaded in mapy or wikiloc gives more realistic elevation?
I did all the changes in settings you suggested, I went on my library, selected the track, tools, update elevation and.... nothing changes in the details of the track
"Why the same gpx I created loaded in mapy or wikiloc gives more realistic elevation?"
- the track elevation gain is recalculated by the digital model of the terrain used by the service. Each digital model is generalized, i.e. the terrain is smoothed compared to reality.
"I did all the changes in settings you suggested, I went on my library, selected the track, tools, update elevation and.... nothing changes in the details of the track"
- the changes affect the elevation gain during track recording. It doesn't affect a saved track. If you need to replace the measured values with elevation data (similar to the ones Mapy or Wikiloc use), open the track detail and select "Update elevation" in the tool menu (more info: https://docs.locusmap.app/doku.php/manual:user_guide:tracks:about#tools)
"Why the same gpx I created loaded in mapy or wikiloc gives more realistic elevation?"
- the track elevation gain is recalculated by the digital model of the terrain used by the service. Each digital model is generalized, i.e. the terrain is smoothed compared to reality.
"I did all the changes in settings you suggested, I went on my library, selected the track, tools, update elevation and.... nothing changes in the details of the track"
- the changes affect the elevation gain during track recording. It doesn't affect a saved track. If you need to replace the measured values with elevation data (similar to the ones Mapy or Wikiloc use), open the track detail and select "Update elevation" in the tool menu (more info: https://docs.locusmap.app/doku.php/manual:user_guide:tracks:about#tools)
You can do one more thing - adjust the altitude threshold for the elevation gain of the track. Open its detail, tap the pencil (edit) in the toolbar and increase the altitude threshold. The default is 3m which means that Locus Map bypasses all ascents up to 3m high. Such "hills" are imperceptible on a hike, especially when not steep. You can increase the value to bypass higher hills. More info: https://docs.locusmap.app/doku.php/manual:faq:wrong_gps_data#custom_altitude_threshold
You can do one more thing - adjust the altitude threshold for the elevation gain of the track. Open its detail, tap the pencil (edit) in the toolbar and increase the altitude threshold. The default is 3m which means that Locus Map bypasses all ascents up to 3m high. Such "hills" are imperceptible on a hike, especially when not steep. You can increase the value to bypass higher hills. More info: https://docs.locusmap.app/doku.php/manual:faq:wrong_gps_data#custom_altitude_threshold
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