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hu-N Ennek a szerkesztőnek magyar az anyanyelve.
en-3 This user has advanced knowledge of English.
de-1 Dieser Benutzer beherrscht Deutsch auf grundlegendem Niveau.
ru-1 Этот участник владеет русским языком на начальном уровне.
Users by language
Gps-304419.svg Grin uses a U-blox ZED-F9P and is willing to answer questions on it from OSM users.
Gps-304419.svg Grin uses a Xiaomi MI10T and is willing to answer questions on it from OSM users.
Gps-304419.svg Grin uses a Xiaomi MI9 and is willing to answer questions on it from OSM users.
OSM Logo This user submits data to OpenStreetMap under the name
JOSM Grin submits data to OpenStreetMap using JOSM.
Potlatch Grin submits data to OpenStreetMap using Potlatch.
iD Grin submits data to OpenStreetMap using iD.
Flag of Hungary.svg Grin has mapped in Hungary.
Flag of Austria.svg Grin has mapped in Austria.
Flag of Slovenia.svg Grin has mapped in Slovenia.
Flag of the Netherlands.svg Grin has mapped in the Netherlands
Flag of Ecuador.svg Grin has mapped in Ecuador.
Flag of Estonia.svg Grin has mapped in Estonia.
Flag of Nepal.svg Grin has mapped in Nepal.
Flag of Uganda.svg Grin has mapped in Uganda.
Flag of Ukraine.svg Grin has mapped in Ukraine.
Flag of the United States.svg Grin has mapped in the United States
Flag of Australia.svg Grin has mapped in Australia.
Flag of Russia.svg Grin has mapped in Siberia.

Some details in english or hungarian Wikipedia. Guess what, I'm Hungarian.

Maybe later I'll repeat some of it here. ;-)

I edit OSM since May, 2008.


I am a lucky owner of an uBlox F9P RTK board, which is an extremely precise GPS with a multichannel external antenna resulting 10-50 centimeters accuracy in lucky measurements (within 100km to a fixed base station) and 1-3 meters in not so lucky environments. This results a significantly different survey method since the GPS unit gives a precise signal usually without the need to offset it to a known-to-good point; it marks the same point with the same position even after hours or days. It requires a powerbank and a phone with internet connection (for real-time data; technically I could record the raw data and use RTKLIB later) and the app on the phone shares the location with other programs, like OsmAnd.

As one measurement is no measurement I usually use several Android based device for parallel track recording, mainly a Xiaomi MI10T and a Xiaomi Mi9. Both phones are able to see Russian (GLONASS, ГЛОНАСС) and Chienese (BDS, 北斗衛星導航系統) satellites, along with GALILEO, and they are dual-channel for added reliability.

I mainly use OsmAnd's recording, rarely Locus.

I postprocess using (gps)prune, which helps to create both geolocated imagery (correlating known position with known image) and compressed/simplified tracks (which get uploaded). Finally JOSM for everything mappingy.

Imagery is created usually either with the phone (later model phones have a fairly reliable compass which is a blessing when using the images) at hand or with a Panasonic DMC-GX1 which gets synched to a key image with known position.

Lately I got a grab on an "action camera" (SJ4000 clone) -- then it self-destructed after a year or so, and I was lazy to replace the non-replaceable battery; but got a Yi Cam which actually have a pretty nice 2k imagery and replaceable battery [and a pretty good image stabiliser, mind you; but it have hard time with fast brighness changes] and realised that JOSM have no working video mapping plugin. Or anyone else. Damn. So I usually either set it to timelapse aka. image every second or cut the movie to 1s resolution imagery and geocorrelate them with tracks -- JOSM geocoded imagery plugin works well (and in the recent years there was only negative progress on video plugin, so no luck for movies yet).

Retired tools

  • Garmin eTrex Vista (gps)
  • OnePlus 1 (phone)
  • Samsung S7 (phone)
  • Desire HD (phone)
  • Motorola Atrix (phone)
  • Samsung Galaxy Tab (tablet)
  • Canon A720IS (cam)
  • SJ4000 (cam)
  • Holux M-1000C (gps logger)

Remarks to myself

Move along, citizen.

survey knowledge
Yahoo yahoo Bing Sat

Bing bing mapbox digitalglobe

Hungary, big boundary: (bbox=15.6,45.5,23.5,48.9); smaller: (bbox=16.1139,45.7371,22.8975,48.5853)