[Patch v2] mprove filters to reduce artifacts in shapes and unconnected ways at lower resolutions
Hi all, see also http://gis.19327.n5.nabble.com/Patch-v1-improve-filters-to-reduce-artifacts-... here is the 2nd version of the patch. Major differences to v1: 1) The start and end points of lines are marked as preserved 2) The Douglas-Peucker-Filter now recognizes "preserved" points in lines and shapes, not only shapes The positive effect of this is that the connecting point of T junctions is preserved and therefore not eliminated from either way. The negative effect is a small increase in img size (~ 1%) because more points are kept A binary is here: http://files.mkgmap.org.uk/download/304/mkgmap.jar If I hear no complains I'll commit this version on thursday. Gerd
Hi Gerd, T junctions are correct, thanks. For my topo map size increase is like 0.2% versus mkgmap r3686. All seems to be OK in BaseCamp and Mapsource. -- Best regards, Andrzej
Hi Andrzej, great, thanks for testing. Gerd ________________________________ Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von Andrzej Popowski <popej@poczta.onet.pl> Gesendet: Samstag, 30. Juli 2016 22:07:24 An: mkgmap-dev@lists.mkgmap.org.uk Betreff: Re: [mkgmap-dev] [Patch v2] mprove filters to reduce artifacts in shapes and unconnected ways at lower resolutions Hi Gerd, T junctions are correct, thanks. For my topo map size increase is like 0.2% versus mkgmap r3686. All seems to be OK in BaseCamp and Mapsource. -- Best regards, Andrzej _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
participants (2)
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Andrzej Popowski -
Gerd Petermann