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[mkgmap-dev] Blue background with Oregons, what whas the solution?

From Thorsten Kukuk kukuk at suse.de on Wed Apr 8 10:51:43 BST 2020

On Thu, Apr 02, Thorsten Kukuk wrote:

> On some Garmin devices (newer Oregons, e.g.) parts of the background
> of the map is shown as blue "sea", not with the normal background.
> Does anybody remember what the problem was and how to fix that?
> Since I don't own any of this devices who show it "wrong", I cannot test
> it myself.

Sorry for the later response, but it took some time until I got feedback
from the reporters of the problem about my changes to fix it.

The reason is: with very old Garmin devices, you should not modify 
the background as this could have lead to problems.
With some new devices, you have to modify the background, means
you need a polygone 0x04b with draworder 1, and only this polygone
with this draw order.


Thorsten Kukuk, Distinguished Engineer, Senior Architect SLES & MicroOS
SUSE Software Solutions Germany GmbH, Maxfeldstr. 5, 90409 Nuernberg, Germany
Managing Director: Felix Imendoerffer (HRB 36809, AG Nürnberg)

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