[mkgmap-dev] Splitter Error

Mon Mar 11 18:06:09 GMT 2013

RheinSkipper wrote
> Well, I used xml output just for some experiments. I tried to sort the
> output to control the draw priority of polygons. According to
> http://www.cferrero.net/maps/mkgmap_tiddlywiki.html#--preserve-element-order
> this should work, but it didn’t. So I can switch back to pbf again for
> now.
> 
> Not being able to control what is drawn on top of what is still my biggest
> problem in generating marine maps. Nautical chartplotters do not support
> TYP files, so controlling draw-priority via TYP is not an option for the
> Garmin marine lineup.

Hmm,  --preserve-element-order only makes sure that (most of) the data is
always processed in the same order. I doubt that you can really influnce the
order of data in the img file. The algorithm that is used to distribute data
into the sub regions is likely to randomize the result for each small change
in the style or
osm data.

Gerd

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