April 2009 - mkgmap-dev - The mkgmap lists

Commit: r1009: Don't apply smoothing to the highest zoom level.
by svn commit 21 Apr '09

21 Apr '09

Version 1009 was commited by steve on 2009-04-21 22:14:45 +0100 (Tue, 21 Apr 2009) Don't apply smoothing to the highest zoom level. Currently this is only a level with resolution 24, that is not necessarily the top level.

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Drawing order when using overlays
by Thilo Hannemann 21 Apr '09

21 Apr '09

Hi, currently I'm trying to use the (not very well documented) "overlays" style file. It seems to work, but I can not figure out the drawing order of the created ways. They seem to draw "somehow", which means I can not reliably draw one line style over another. I tried the command line argument "--preserve-element-order", but it doesn't help. Could anybody point me in the right direction here? My overlays file is: -- 0x12c: 0x2c, 0x02, 0x2c 0x12d: 0x2d, 0x02, 0x2d 0x12e: 0x2e, 0x02, 0x2e 0x12f: 0x2f, 0x02, 0x2f 0x136: 0x36, 0x06, 0x36 0x137: 0x37, 0x06, 0x37 0x138: 0x38, 0x06, 0x38 0x139: 0x39, 0x06, 0x39 -- Nonetheless the line style 0x06 for example gets drawn above the 0x36. :( Thanks! Thilo

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Making contour (topo) maps for Scandinavia and Russia
by Marko Mäkelä 21 Apr '09

21 Apr '09

I wondered why the contour lines on OpenCycleMap tiles end near my latitude (a few hundred meters south from my home). The reason seems to be that the NASA SRTM data does not cover polar areas, between 60° and 90° degree northern or southern latitude. Fortunately, some contour data appears to be available: http://www.viewfinderpanoramas.org/contours2.html Has anyone made any experiments with this data? Is a translation from the Pulkovo 42 coordinate system to WGS84 needed? Is it OK to distribute Garmin maps that combine OSM and this elevation data? Marko

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routing / address search: What makes a road (, house number, etc.) belong to a city (, country, etc.)
by Gernot Hillier 21 Apr '09

21 Apr '09

Hi there! As we have regular discussions about $SUBJECT on the German OSM list, I'd like to know about the current state within mkgmap and your opinions on that. Things which come to my mind to make things belong to others so far, are: 1) tags on the child like is_in or addr:street/addr:city 2) place and boundary polygons for the "parent" 3) relations Can you give a short summary which of those are currently used and which could probably make your life easier in the future? Especially taking into account a real, working address search with house numbers, post codes and all that... (I'm personally in strong favor for 2) when it comes to street->city and 3) when it comes to housenr->street) Some observations I made with my mkgmap cards in Bavaria, DE: * For the "road-name-pois", things look quite ok. All streets I looked up so far are labelled with the correct suffix ("/City"). However, for quite some, I've no clue how mkgmap figures this out - simply searching for the next city node? * On the other hand, with mkgmap cards loaded, my Nüvi seems to have no idea about streets being within or without a city. In Germany, a primary/secondary/tertiary road within a city is normally restricted to maxspeed=50, but to maxspeed=100 when it's outside - so we don't tag this explicitly. However, my Nüvi always expects me to go with something like 70km/h on primary roads - independent where I am. This makes ETAs in cities terribly wrong. It expects you to cross a city in 5 minutes which is usually quite ... optimistic. * For the "real address search", things seem to be quite indeterministic. Sometimes, a street is listed as part of "City, City", sometimes the city is prefixed with a long list of post codes. I'm even quite sure that I also saw "Suburb, City" in the past - however I'm not able to reproduce this with r1006 at the moment. I'm quite sure that is based on inconsistent data within OSM, but how exactly? TIA! -- Gernot

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Tunnel flag?
by Wolfgang v. Hansen 21 Apr '09

21 Apr '09

I would like to bring the existance of a "tunnel flag" to your attention. The StreetPilot will not complain about lost satellite reception when a road is marked as tunnel in the maps. It seems that this flag is not yet implemented. -Wolfgang PS: If you need a test driver, I've got a tunnel on the way to work.

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Commit: r1008: Workaround to make --list-styles work in java 1.5
by svn commit 20 Apr '09

20 Apr '09

Version 1008 was commited by steve on 2009-04-20 23:31:21 +0100 (Mon, 20 Apr 2009) Workaround to make --list-styles work in java 1.5

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Commit: r1007: The style files allow for comments by ignoring everything after "#". This
by svn commit 20 Apr '09

20 Apr '09

Version 1007 was commited by steve on 2009-04-20 20:57:50 +0100 (Mon, 20 Apr 2009) The style files allow for comments by ignoring everything after "#". This was not handled in the "overlays" style file. Added code to handle it. - Thilo Hannemann

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[PATCH] feature/bugfix: allow comments in "overlays" style file
by Thilo Hannemann 20 Apr '09

20 Apr '09

The style files allow for comments by ignoring everything after "#". This was not handled in the "overlays" style file. Added code to handle it. Index: src/uk/me/parabola/mkgmap/osmstyle/OverlayReader.java =================================================================== --- src/uk/me/parabola/mkgmap/osmstyle/OverlayReader.java (revision 1006) +++ src/uk/me/parabola/mkgmap/osmstyle/OverlayReader.java (working copy) @@ -62,6 +62,12 @@ while (!ts.isEndOfFile()) { String line = ts.readLine(); + // Remove comments before parsing + int commentstart = line.indexOf("#"); + if (commentstart != -1) { + line = line.substring(0, commentstart); + } + String[] fields = line.split(":", 2); if (fields.length == 2) {

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mkgmap api 0.6 ready?
by maning sambale 20 Apr '09

20 Apr '09

Just a simple question (probably irrelevant), does development of mkgmap in tune with the new OSM API 0.6? -- cheers, maning ------------------------------------------------------ "Freedom is still the most radical idea of all" -N.Branden wiki: http://esambale.wikispaces.com/ blog: http://epsg4253.wordpress.com/ ------------------------------------------------------

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No SVN commit emails
by Mark Burton 20 Apr '09

20 Apr '09

BTW, it appears that the emails generated by SVN commits are not reaching the list at the moment.

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