[talk-ph] editing admin boundaries of Marikina

[maning sambale]

Hi,

I am starting to add admin boundaries of Marikina (partly because I
envy Makati!).
http://www.openstreetmap.org/?lat=14.6442&lon=121.1174&zoom=14&layers=B000FTF

I am now adopting seav's proposal on the admin_levels and using
relations for aggregating barangay boundaries into Marikina City
borders.

The admin boundaries around marikina (QC, pasig, san mateo, cainta and
antipolo) maybe a bit messy right now.  Partly because I am trying to
understand how to merge marikina barangay boundaries into the existing
boundaries (please don't touch them for the moment, I promise to
finish this weekend).

The hardest part is how to tag multiple boundary levels.

for example, the northern border of Barangay Nangka:
http://www.openstreetmap.org/browse/way/35024130
admin_level = 10
boundary = administrative
name = Nangka

is also the  admin boundary of Marikina and San Mateo
admin_level = 6

which is also part of the Rizal border
admin_level = 4

which is also the regional boundary
admin_level = 3

Whew!

When there are conflicts (in the OSM sense), I decided to treat higher
admin level (i. e. barangay and municipalities), as a "priority" over
other admin levels.
Is this good practice?



-- 
cheers,
maning
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"Freedom is still the most radical idea of all" -N.Branden
wiki: http://esambale.wikispaces.com/
blog: http://epsg4253.wordpress.com/
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