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 Post subject: Shoreline looking odd
PostPosted: 02 Jun 2016, 03:17 

Joined: 01 May 2016, 18:04
Posts: 9
Ok, so you folks have been very helpful so far... onto my next issue. The shorelines on my map of Canada are looking really strange. In fact the Great Lakes look like a giant blue box if you zoom out. I have surmised the the shorelines are not working correctly. I have the latest version of both Navit running on my Raspberry Pi 3 and the maps downloaded from the Navit OSM server.

Any idea how to fix this?


 Post subject: Re: Shoreline looking odd
PostPosted: 02 Jun 2016, 17:09 

Joined: 09 Jul 2013, 17:41
Posts: 82

This is a known limitation of navit.

There's a workaround which allows to use prerendered raster maps at low zoom levels, but it's not an out-of-the-box solution. But navit is anyway not an out-of-the-box product :)

At first, you may try a map from . It's more than a year old, but it has coastline data popped up, which makes it look a bit better.

For the extreme low zoom levels, we have another solution: display a pre-rendered bitmap file.

Second stage needs support from navit graphics driver you use. See what you have in <graphics type="..."/> tag. Most probably, you'll have to use gtk_drawing_area to have this functionality. I don't know it it works on Raspbian.

May be you will be able to get details how to configure raster low resolution map at

But do not attempt to apply the diff attached to the ticket, it's mostly for a different platform and is already applied. You'll need ... 5/map3.txt (attach it as map type="textfile") Also you'll need file from that ticket with pre rendered png images, but it's not accessible anymore :-( I think we'll fetch it from somewhere if it's actually needed.

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