[mkgmap-dev] mkgmap ToDo list

Fri Apr 25 18:35:31 BST 2014

Hi Henning,

well, I don't know how well the number of nodes
in a tile correlates with the size of the img file,
but it seems to work for most users.
My understanding is that this should work as well for
a style which only processes a few details,
only the ratio between number of nodes and tile size
will be different, in other words, you have to find
out how much higher the max-nodes value can be.

Gerd

> Date: Fri, 25 Apr 2014 19:27:09 +0200
> From: osm at aighes.de
> To: mkgmap-dev at lists.mkgmap.org.uk
> Subject: Re: [mkgmap-dev] mkgmap ToDo list
> 
> Hi Gerd,
> splitter is able to write a density file, which stores the density of 
> OSM-nodes in the specific area. Afterwards the file is splitted and 
> processed by mkgmap. mkgmap will use only the objects, which are 
> addressed in style-file.
> 
> Example: In a rectangle of 100x100m are 5 nodes belonging to a highway 
> and 10 nodes belonging to POI, and polygones and style-file only 
> contains highways, mkgmap writes only 5 nodes (and one line) to img-file.
> 
> For an more effictive splitting of tiles I would imagine, that a 
> density-file created by mkgmap based on the written data will be much 
> better then the file written by splitter.
> 
> Henning
> 
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