I tried to understand the old problem with 180 degree of longitude. The most eastern region of Russia located on the boundary of eastern and western parts of the earth. At this point, Splitter and Mkgmap make the maps divided into 2 parts. Both of these tiles are made with errors. The left tile disappears in Mapsource with overzoom message and looks like without background. See saple images: http://maptourist.org/files/noBackground.png http://maptourist.org/files/overzoom.png Right tile does not appear on the map due to compile errors in Mkgmap: java -Xmx1024m -jar E:\OSM\mkgmap\mkgmap-locator-r1912.jar --output-dir =C:\Garmin\OSM_Russia\mkgmap\ --description="OSM test" --family-name="OSM test 12.04.2011" --series-name="OSM test 12.04.2011" --overview-mapname="OSM_test" --area-name="OSM 12. 04.2011" --family-id=480 --read-config=optionsfile.args --keep-going --st yle-file=E:\OSM\mkgmap\myConfigs --style=myConfigs --gmapsupp E:\OSM\mkgmap\myConf igs\M00001e0.TYP 63240001.osm.gz ... uk.me.parabola.imgfmt.MapFailedException: There is not enough room in a single garmin map for all th e input data The .osm file should be split into smaller pieces first. at uk.me.parabola.imgfmt.app.BufferedImgFileWriter.ensureSize(BufferedImgFileWriter.java:192 ) at uk.me.parabola.imgfmt.app.BufferedImgFileWriter.putChar(BufferedImgFileWriter.java:117) at uk.me.parabola.imgfmt.app.trergn.Polyline.write(Polyline.java:138) at uk.me.parabola.imgfmt.app.trergn.RGNFile.addMapObject(RGNFile.java:140) at uk.me.parabola.imgfmt.app.map.Map.addMapObject(Map.java:242) at uk.me.parabola.mkgmap.build.MapBuilder$ShapeAddFilter.doFilter(MapBuilder.java:1092) at uk.me.parabola.mkgmap.build.LayerFilterChain.doFilter(LayerFilterChain.java:57) at uk.me.parabola.mkgmap.filters.RemoveEmpty.doFilter(RemoveEmpty.java:61) at uk.me.parabola.mkgmap.build.LayerFilterChain.doFilter(LayerFilterChain.java:57) at uk.me.parabola.mkgmap.filters.PolygonSplitterFilter.doFilter(PolygonSplitterFilter.java:5 7) at uk.me.parabola.mkgmap.build.LayerFilterChain.doFilter(LayerFilterChain.java:57) at uk.me.parabola.mkgmap.build.LayerFilterChain.startFilter(LayerFilterChain.java:75) at uk.me.parabola.mkgmap.build.MapBuilder.processShapes(MapBuilder.java:961) at uk.me.parabola.mkgmap.build.MapBuilder.makeSubdivision(MapBuilder.java:667) at uk.me.parabola.mkgmap.build.MapBuilder.makeMapAreas(MapBuilder.java:601) at uk.me.parabola.mkgmap.build.MapBuilder.makeMap(MapBuilder.java:203) at uk.me.parabola.mkgmap.main.MapMaker.makeMap(MapMaker.java:101) at uk.me.parabola.mkgmap.main.MapMaker.makeMap(MapMaker.java:65) at uk.me.parabola.mkgmap.main.Main$1.call(Main.java:224) at uk.me.parabola.mkgmap.main.Main$1.call(Main.java:221) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) I found a temporary solution. If you edit the coordinates of the borders of the two tiles in the file areas.kml (generated by Splitter with option "--split-file=areas.kml") replacing 180.000000 to 179.999998 for the left tile and -180.000000 to -179.999998 for the right tile. Then run Splitter with "--split-file=areas.kml" option. Now both the tiles are compiled correctly. But "Overzoom" area had not gone - it just reduced to 2 km stripe. http://maptourist.org/files/spacing.png I take the OSM data here - http://gis-lab.info/data/osm/full.osm.bz2 My erroneous tiles: Left - http://maptourist.org/files/63240042.osm.gz Right - http://maptourist.org/files/63240001.osm.gz Parameters of the splitter: java-Xmx1024m-jar splitter171.jar ^ - geonames-file = cities1000.zip ^ - overlap = 20000 < - max-nodes = 1000000 ^ - no-trim ^ - write-kml = areas.kml ^ full.osm optionsfile.args: max-jobs: 2 code-page: 1251 tdbfile index country-name: RUSSIA country-abbr: RUS lower-case route net drive-on-right remove-short-arcs location-autofill = 2 generate-sea = extend-sea-sectors, close-gaps = 300,000, floodblocker -- View this message in context: http://gis.638310.n2.nabble.com/maps-on-180-degree-tp6266087p6266087.html Sent from the Mkgmap Development mailing list archive at Nabble.com.