[mkgmap-dev] Performance with zipped hgt files

Mon Jan 8 19:23:51 GMT 2018

Hi Andrzej,

okay, I'll add an option for that. At the moment, we have these hard coded limits in SplittableDensityArea:
        private static final int MAX_LAT_DEGREES = 85;
        private static final int MAX_LON_DEGREES = 90;

I have to find out how a change in these limits affects the search for the best split, esp. when the splitting planet.
I think one has to accept empty tiles with a max of 11.25 degrees. I think the last changes in the split algo were done to avoid this.

Gerd

________________________________________
Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Andrzej Popowski <popej at poczta.onet.pl>
Gesendet: Montag, 8. Januar 2018 18:43:33
An: mkgmap-dev at lists.mkgmap.org.uk
Betreff: Re: [mkgmap-dev] Performance with zipped hgt files

Hi Gerd,

> I don't yet see a need to change splitter like that but I can do that
> as well.

I would use this option too. Whenever I split data for Europe, I get a
tile which includes Azores and south shore of Island. I split it
manually then.

For maps with DEM I use an awk script, which process areas.list. I set
maximum extent to 11.25 degree.

--
Best regards,
Andrzej
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