Hi, I searched the archives and found that this is an old issue starting end of 2009, see e.g. http://www.mkgmap.org.uk/pipermail/mkgmap-dev/2010q1/006477.html It is quite difficult to find out what effect the rounding has because the problems are only visible when you know where to look at. For now I can only say that the removal of the rounding in mkgmap fixes the problem with the gap. Here is what I tested: content of file minko_areas.list: #North tile 10131034: 2306867,4096 to 2344960,22528 # : 49.499996,0.087891 to 50.317383,0.483398 #South tile 10135076: 2301952,4096 to 2306867,40960 # : 49.394531,0.087891 to 49.499996,0.878906 Process with trunk versions of splitter r298 and mkgmap r2534: java -jar d:\splitter_trunk\dist\splitter.jar --split-file=minko_areas.list f:\osm\france.o5m java -Xmx3000m -jar d:\mkgmap_trunk\dist\mkgmap.jar --nsis --max-jobs -c template.args run installer start Basecamp Result: the gap is visible as described in Minkos first post The patched version of mkgmap doesn't show the gap, nor did I find other problems. My problem: I did not find any hints in the archive how the original problem looked like, so I am not sure if the old errors are back now :-( @Felix : You posted some test data for the original issue, maybe you can also have a look at this again? Attached is the patch, the compiled binary is available at http://files.mkgmap.org.uk/download/92/mkgmap.jar ciao, Gerd
Date: Wed, 20 Mar 2013 22:59:57 +0000 From: steve@parabola.me.uk To: mkgmap-dev@lists.mkgmap.org.uk Subject: Re: [mkgmap-dev] issues with tile boundaries
On 18/03/13 07:44, Gerd Petermann wrote:
Ah, I see. The method TdbBuilder.addToOverviewMap() rounds the coods of the tile bboxes with the hardcoded resolution 13.
@Steve: I don't know why that is done, maybe it can be changed ?
Yes its worth trying to leave out the rounding and just let the normal fitting of the coordinates to the level later on. See what happens!
..Steve _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://lists.mkgmap.org.uk/mailman/listinfo/mkgmap-dev