Hi Minko, I think I found a formula to calculate the area size in a metric unit. But I have a problem to test that because I don't know the real area size of an OSM polygon. Can anybody please send some way (polygon) ids with it's real world area size? WanMil
Hi Minko,
It might be possible. The problem to be solved is that the garmin map geometry is not rectangular. So at the moment I don't know how the area size of a polygon can be calculated in a metric unit.
WanMil
Can something like the length function also be implemented for polygons to render big lakes earlier? For example natural=water & area() > 10 [0x3c resolution 16] natural=water [0x3c resolution 18]
(gmaptool shows this area in sq km)
There was a typo where it was checking if the function was supported for nodes instead of relations. Now fixed.
..Steve
-- keep on biking and discovering new trails
Felix openmtbmap.org & www.velomap.org
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