using the polygons file in the styles to add tags to included points?
Hi there! Since quite some time, I think that "someone" ;) should fix the problem that the Garmin currently has no idea what's inside a city and what not. This would mainly fix two things: 1) ETAs in cities are currently terribly wrong if you take a primary road. Garmin calculates with road_speed 4 or so while 2 would be much more accurate. 2) Address search and road-name-pois quite often gets the city wrong. Today, I stumbled over the "polygon" file in the styles and thought that adding a capability to add tags to points in the polygon might be an easy to implement first step for an elegant solution here. I'd love to have the ability of the "relations" file - to manipulate included points or ways - also available in the "polygon" file. Thus, we could e.g. just add implicit is_in or maxspeed tags automatically to the nodes in the area which makes all the other stuff terribly simple. At least, on the German mailing list, we have frequent "wars" about the question if a feature is best implemented using relations, polygons or tags at the single nodes. If we would implement a template mechanism in mkgmap for lines and nodes in polygons, we could support all solutions within "minutes". What do you think? -- Gernot
On Sun, May 03, 2009 at 09:57:51AM +0200, Gernot Hillier wrote:
Hi there!
Since quite some time, I think that "someone" ;) should fix the problem that the Garmin currently has no idea what's inside a city and what not.
This would mainly fix two things:
1) ETAs in cities are currently terribly wrong if you take a primary road. Garmin calculates with road_speed 4 or so while 2 would be much more accurate.
2) Address search and road-name-pois quite often gets the city wrong.
+1. I don't care that much about 1) [the ETAs will be off for bicycling and walking anyway], but 2) is very important.
Today, I stumbled over the "polygon" file in the styles and thought that adding a capability to add tags to points in the polygon might be an easy to implement first step for an elegant solution here.
I'd love to have the ability of the "relations" file - to manipulate included points or ways - also available in the "polygon" file. Thus, we could e.g. just add implicit is_in or maxspeed tags automatically to the nodes in the area which makes all the other stuff terribly simple.
At least, on the German mailing list, we have frequent "wars" about the question if a feature is best implemented using relations, polygons or tags at the single nodes.
In Finland, some boundaries have been drawn as polygons and others as relations. A flexible solution would be preferrable. Marko
participants (2)
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Gernot Hillier -
Marko Mäkelä