July 2022 - mkgmap-dev - The mkgmap lists

Fix and augment sort definitions
by Gerd Petermann 12 Oct '23

12 Oct '23

Hi Ticker, see https://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=3948 https://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=3949 the sortResource.patch reverts these changes. In Mapsource the results are a bit better with your patch. I'll try again with my Oregon later. Gerd

3 15

Question on routing difference
by jan meisters 26 Nov '22

26 Nov '22

Hi all, I´m using an altered copy of the OFM style and therefore sometimes compare the results. One routing difference I found I was able to lead back, but the cause I don´t understand at all. My test-route should prefer the small residential „Altengabengäßchen“ over the primary „Viktoriastrasse“. Latest OFM does, my version not since I removed {add bicycle=yes} from this line: highway=path & surface ~ '(paved|asphalt|sett|concrete|paving_stones|paving_stones:30)' & access!=no & access!=private & vehicle!=no { set highway=pedestrian; add bicycle=yes; add motorcar=yes; } But unfortunately there is no path or pedestrian in the test-route, nor is it an option to use one. Anyone has an idea how this path>pedestrian rule could affect routing on residential/primary? Same happens when I replay the change with the original OFM. Up-to-date osm.pbf, route from BC and screenshots are here: https://files.mkgmap.org.uk/download/556/test_route.zip Thanks Jan

7 19

Multiple pass cleanup possible with style?
by blc 23 Jul '22

23 Jul '22

Is it possible to run through certain parts of the style more than once? Use model: To reduce sizes I {deletealltags} of some small objects that I deem not important. However this sometimes ends up leaving some orphan ways that are no longer connected to anything. I'd like to delete these ways too, but seems like it does everything in one pass so these get left despite having a rule to remove them. How would one do something like this? I don't think I want to do this more than a few times but cleaning up the self-inflicted orphaned ways would be helpful. Thanks!

2 5

Showing labels next to POIs on Garmin Map
by viorap＠web.de 22 Jul '22

22 Jul '22

4 3

Merge tiles to gmapsupp based on poly files
by Daniel Vogelbacher 21 Jul '22

21 Jul '22

Hi all, the regular workflow for building maps is something like: 1. get osm pbf data for the region 2. split data using splitter.jar into rectangular tiles 3. build each tile 4. merge all map tiles into single gmapsupp.img But from my understanding, this raises issues on region boundaries when multiple regions (multiple gmapsuppXYZ.img files) are used on device. The data for an extract is usually defined by a .poly file, so everything outside of this polygon is not included. But splitter.jar splits not at polygon bounds but by rectangles of different sizes. So some tiles for a map contains not the full osm data for this rectangle because the data was already cut off during osm data extraction. For example, building the map for Germany and France by two separate osm extracts leads to missing data on the polygon bounds for these tiles. And I assume this breaks routing across maps. A better approach would be to split and build from the whole world (or at least Europe), then merge all tiles for Germany into gmap_germany.img and all tiles from France into gmap_france.img. The tiles on country borders must be included in both .img files but because they have the same map-id, the device should be able to take care of duplicated map tiles. The area of tiles can be defined by the same .poly file used in the regular workflow, but now as a selector for tiles instead of osm data. So because I don't see anything in the docs mentioning this workflow, I assume this is not how it works :-) What is the recommended workflow to build multiple maps and providing proper routing across multiple gmapsupp.img - or is this just not possible with Garmin devices? -- Best regards / Mit freundlichen Grüßen Daniel Vogelbacher

2 3

Raise an error when levels and dem-dists mismatch
by Daniel Vogelbacher 14 Jul '22

14 Jul '22

Hi all, I've debugged the past two days why a custom map won't be recognized by my Garmin Oregon 700 device. The issue was the dem configuration. My style uses this level mapping: levels = 0:24, 1:22, 2:20, 3:18, 4:16 While my dem distribution line was: dem-dists=3312,6624,9936,13248,16560,19872,23184,26496 So there are only 5 levels defined, but the distribution maps to 8. (I copied the dem-dists line from Freizeitkarte-style without thinking about it...) The build process was successfully, but the map was never listed in the device map selection. After fixing the level mapping in the style/option file, the map gets listed. So may I ask to add a check/exception to prevent building maps when there is a mismatch between levels vs. dem-dists? Thank you! -- Best regards / Mit freundlichen Grüßen Daniel Vogelbacher

2 4

Commit r4905: Stop execution and report error when number of DEM dist values is higher than the levels.
by svn commit 13 Jul '22

13 Jul '22

Version mkgmap-r4905 was committed by gerd on Wed, 13 Jul 2022 Stop execution and report error when number of DEM dist values is higher than the levels. http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4905

1 0

Error while using splitter-r652
by viorap＠web.de 07 Jul '22

07 Jul '22

2 1

Using OSM card on garmin / summit names/height
by viorap＠web.de 04 Jul '22

04 Jul '22

2 2