Rework of the POI searchability – November 2011

Over the last few weeks I spent a lot of time (about 130 hours total) on reworking the whole Points of Interest (POI — all points in the map) framework. I did this because I noticed that some points were not found on the newer garmin devices like before.

For some it might be known, but most will not know that Garmin uses a rather complicated system to determine what point can be found at which place on the GPS/Mapsource and also determine the maximum resolution at which it is shown. This system is based on a rather random system of FFFFF points. Only a few of those are however usable and searchable. Hence it took me a long time to tryout to analyse and tryout about 2000 (hex) of them to find out which ones have which properties.

Already over the last two weeks I had started to update this system, for this Thursday's updates the rework is finished. I will write an article today that shows the structure about what you can find via the search function.

 

Do note that this also depends on other maps. There are some maps like Nop's Reit & Wanderkarte, but […]

November 23rd, 2011 | Leave a comment

Map Updates 21. October 2011

Well, on the last map update I asked for a new server, luckily I got one now from a donor, and actually last weeks updates already came from the new render server (which is also about 25% quicker than the older one). Moving the server luckily did not take that much time (about half a day until everything ran smooth). Thanks for all people that proposed me help.

As for the map updates. The biggest change is that mkgmap got a better POI handling for Polygons. Therefore I could take in some more POI (like playgrounds) that I had taken out before because they cluttered the map, and now work better (essentially the placement of the POI for Polygons/Multipolygons got set on the entrance instead of the middle, and for Multipolygons only 1 POI is created, and not one for each polygon).

On the Velomap I fixed an old bug (thanks for bringing it up to csperr) that had all highway=footway & sac_scale=mountain_hiking displayed as rivers (actually such ways are usually highway=path, so it was pretty rare). Also when updating the colors of the traditional Desktop layout, I had mixed up colors for motorways (in resolution 24) and […]

Oktober 20th, 2011 | Leave a comment
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