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East Yorkshire to Pembrokeshire with OSMTracker

DavidJames님이 English로 2007년 11월 13일에 게시함.

A weekend away in west wales gave an opportunity to try out OSMTracker as a passenger rather than just as a driver. When it has the tiles it needs already downloaded, or where there is a good mobile phone signal it works well, but I have problems with its mapping function in new areas where mobile phone coverage is poor. Some strange things happen if it decides it needs to download a tile when there is no mobile connection. I'd really like to be able to tell it not to do any mapping anmd not to try to get data from the Internet. I really should put a note on its Wiki entry.

I took the opportunity on the way back to map the A163 between Bubwith and Holme upon Spalding Moor.

Still looking at the GPS traces from the drives back and forth between East Yorkshire and Pembrokeshire.

Trunk and primary roads

DavidJames님이 English로 2007년 10월 25일에 게시함.

Responding to chilly's diary entry ...

As I read the Highway_tag_usage page in the Wiki at osm.wiki/index.php/Highway_tag_usage, highway=trunk doesn't mean a trunk road with the legal meaning of trunk road in the UK. The Wiki page says to use "highway=trunk" for "primary A road (green signs)" and to use "highway=primary" for "non-primary A road (black/white signs)", a bit counter-intuitive, but that convention does seem to have some advantages:

1. the renderers show "highway=trunk" in green and "highway=primary" in red, which matches the colour most paper maps in the UK use for primary routes and non-primary A roads, respectively, and

2. I'm not sure it is possible to determine trunk roads (in the legal sense) from any non-copyright sources. The original legislation is Crown copyright (perhaps it is out of copyright now), and the trunking and de-trunking orders that amend trunk road statuses are also Crown copyright.

My first road displays on the map!

DavidJames님이 English로 2007년 10월 17일에 게시함.

I've recorded tracks on my journey to and from work this week (logging the data using OziExplorer CE running on an IPAQ hx2490 with a Bluetooth connection to a BT-77 GPS receiver).

Last night I converted this from OziExplorer track format to GPX using GPSBabel, uploaded it into OSM and tried out JOSM.

I couldn't get josm_latest (downloaded that night, 16th October) to retrive any data from OSM (it gave an HTTP 403 error). I also had a josm_latest that I'd downloaded on 13th October and that worked.

Puzzled when I looked at what JOSM was displaying to see that there was a lot of mapping in my home town that I wasn't seeing on the slippy map. So, anyway, I added a short stretch of track that wasn't in the existing data and tagged it highway=residential.

This morning, it's on the map! Wonderful!

I've a suspicion that the other data I was seeing in JOSM isn't on the map because it hasn't got any useful highway= tagging.

Next step is to try adding tags to some of the existing data that doesn't display on the map to see if that makes it display.