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[mkgmap-dev] dem-poly and precomp-sea

From Gerd Petermann gpetermann_muenchen at hotmail.com on Fri Jan 12 08:09:04 GMT 2018

Hi Andrzej,

yes, and maybe that's also an explanation for the problems with the hill shading.
The current implementation in mkgmap fills the values outside of the polygon with
"invalid" height. Maybe Garmin only does that for those sub tiles which are completely
outside of the polygon.
I can verify that because I don't have a map with DEM data and non-rectangular background 


Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Andrzej Popowski <popej at poczta.onet.pl>
Gesendet: Donnerstag, 11. Januar 2018 17:01:01
An: mkgmap-dev at lists.mkgmap.org.uk
Betreff: Re: [mkgmap-dev] dem-poly and precomp-sea

Hi Gerd,

DEM shading is displayed only over background object 4B. If you clip
background, than the effect is like clipping DEM too.

Best regards,
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mkgmap-dev at lists.mkgmap.org.uk

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