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[mkgmap-dev] Option to output polygons in size order

From Ticker Berkin rwb-mkgmap at jagit.co.uk on Sat Jul 23 17:45:59 BST 2016


I'm using splitter-r437/mkgmap-r3676 to make a map for Etrex Legend
from british-isles-latest.osm.pbf from geofabric.de.

Using "default" style and not using a TYP file, no land features
(woods,marsh,green) show because an island polygon for "British Isles"
is rendered near the end, on top of everything else. I guess that the
Etrex has all area types as the same draworder and renders them in file

I presume I could use TYP / _DrawOrder to change this behaviour
slightly but I keep finding examples of woods in islands in lakes in
marsh in islands etc etc, so _DrawOrder can't solve the problem.

What would make everything show correctly would be to output polygons
in size order, largest to smallest. Could this be done easily? either
in splitter then --preserve-element-order, or in mkgmap, possibly after
style processing because there will be a lot fewer polygons at this

Ticker Berkin

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