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[mkgmap-dev] Tiles pruned in DEM map

From Ticker Berkin rwb-mkgmap at jagit.co.uk on Sat Jan 23 18:54:30 GMT 2021

Hi Gerd

Given that the overview map is for use on computers with 100s of G of
disk space and the main map will be a G or so, can an extra few 10K or
so in the overview map really be a problem for anyone?

Building British-and-ireland, with default style and just --gmapsupp
(ie no index or routing) gmapsupp.img is 542M and osmmap.img is 220k.
With --order-by-decreasing-area they increase to 603M (11.3%) and 228k

With routing, indexing, code page 1252 and other typical options,
gmapsupp.imp might be double the size and so the percentage increase
would be a lot less but not significantly different for osmmap.img.


On Sat, 2021-01-23 at 11:29 +0000, Gerd Petermann wrote:
> Hi Ticker,
> outch, sorry! It seems I created my patch without any testing :(
> I'm still not happy with the handling of the --order-by-decreasing
> -area option. I wonder why nobody else comments on this. Either
> nobody cares about the size of the overview map or nobody else tried
> any of the patches. Since this is a major change I hoped for more
> feedback.
> Gerd

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