How to create map with coutours ?

miramikes · 2011-10-24T22:57:31.000Z

Hi,

csdf:

Yeah, I haven’t bothered with contours for a while and have updated my style and TYP a lot, so it may well not work properly.

I found a lot of info in one place on yours pages … thank you

mira

miramikes · 2011-10-24T23:41:21.000Z

ligfietser:

The sea Ihave rendered with the mkgmap option:

generate-sea: extend-sea-sectors,close-gaps=6000,floodblocker,land-tag=natural=background

natural=background is in my polygons file [0x010100 resolution 14]

The sea is natural=sea [0x32 resolution 14]

That’s work here

ligfietser:

In the typ file you can set the draw order for the sea 1 and 0x010100 at 2, residential areas at 3 and the rest 4 and higher.

If I understand right it works like a sandwich … upper covering lower … Is it right?

ligfietser:

You can also use the general world routable styles that are still in development:
http://code.google.com/p/mkgmap-style-sheets/source/browse/#svn%2Ftrunk%2Fstyles%2Fworld-test
http://code.google.com/p/mkgmap-style-sheets/source/browse/#svn%2Ftrunk%2Ftyp%2Fworld-test
http://code.google.com/p/mkgmap-style-sheets/downloads/list

I will definitely chech them.

My img file now rises in size to 330MB and my device became quite sluggish.
The reason can be in size of file itself or because of drawing too much contours all the time.
I have three type of contours and would like to set different resolutions for them to not be displayed all the time, but only in appropriate resolution.

lines file
contour=elevation & contour_ext=elevation_minor
{ name ‘${ele|conv:m=>ft}’; }
[0x20 resolution 23]
contour=elevation & contour_ext=elevation_medium
{ name ‘${ele|conv:m=>ft}’; }
[0x21 resolution 21]
contour=elevation & contour_ext=elevation_major
{ name ‘${ele|conv:m=>ft}’; }
[0x22 resolution 17]
contour=elevation | contour_ext=elevation
{ name ‘${ele|conv:m=>ft}’; }
[0x21 resolution 20]

Any hint here? I don’t understand mainly 4th entry.

regards

mira

csdf · 2011-10-25T05:37:46.000Z

The last line is catching any elevation lines that haven’t been caught by the previous rules, but it looks a little odd to me.

miramikes · 2011-10-25T11:46:51.000Z

csdf:

The last line is catching any elevation lines that haven’t been caught by the previous rules, but it looks a little odd to me.

I removed 4th entry totaly:

contour=elevation & contour_ext=elevation_minor
{ name ‘${ele|conv:m=>ft}’; }
[0x20 resolution 24]
contour=elevation & contour_ext=elevation_medium
{ name ‘${ele|conv:m=>ft}’; }
[0x21 resolution 23]
contour=elevation & contour_ext=elevation_major
{ name ‘${ele|conv:m=>ft}’; }
[0x22 resolution 19]

It still looks like contours appears/disappear in same moment when changing resolution (no difference).
And more over … I have brown dotted line for elevation_minor 0x20, brown full 1 pixel line for elevation_medium 0x21 and black full 1 pixel line for elevation_major 0x22
But all contour are displayed same way … full black line.

BTW what is range of values for resolution?

mira

ligfietser · 2011-10-25T12:30:00.000Z

The values for the resolution are set in the option style file:
http://www.mkgmap.org.uk/svn/wsvn/mkgmap/resources/styles/default/options

In the default mkgmap settings are
levels = 0:24, 1:22, 2:20, 3:18, 4:16

By coincidence today I discovered a glitch in mine,
levels = 0:24, 1:23, 3:22, 4:21, 5:20, 6:18, 7:16 but it should be
levels = 0:24, 1:23, 2:22, 3:21, 4:20, 5:18, 6:16

Maybe this is also the reason why they dont respond as expected in your map, because my settings differ from the default mkgmap settings. The colours are set in the typ file btw, so you can play with them too to make it appear the way you want.

miramikes · 2011-10-26T01:59:11.000Z

Hi,

I solved problem with contours … my fault
before: $ mono Srtm2Osm/Srtm2Osm.exe -large -step 20 -cat 20 10 -bounds1 -56.17 -75.64 -50.0 -64.7
now: $ mono Srtm2Osm/Srtm2Osm.exe -large -step 20 -cat 400 200 -bounds1 -56.17 -75.64 -50.0 -64.7

“cat” values are not multipliers of “step” value !

All contour has been handled like major

Now I would like to solve problem with sea … In some areas sea is “flooding” land.
It is happen on the edge of the map and it looks like it is “flooding” from this edge not from costline.

I am using these options to generate sea:
–generate-sea=extend-sea-sectors,close-gaps=6000,floodblocker,land-tag=natural=background

what about these options, might help?
polygons
no-sea-sectors

regards

mira

ligfietser · 2011-10-26T07:28:42.000Z

Ah, the flooding problem…therefore you need another trick
The generate sea option is ok, you will have to download an extra set of coastlines, because in your extract the seacoast is incomplete.
See http://www.mail-archive.com/mkgmap-dev@lists.mkgmap.org.uk/msg10351.html

Download the coastlines_planet-latest.osm.pbf from http://fabianowski.eu/osm/coastlines/
In your mkgmap options --coastlinefile=coastlines_planet-latest.osm.pbf

This might help, otherwise the coastline could be broken somewhere inside the map and you need to fix it first.
Btw it improves the looks of the map too, because it shows more coastline & land outside the map

miramikes · 2011-10-26T08:59:18.000Z

Hi,

ligfietser:

In your mkgmap options --coastlinefile=coastlines_planet-latest.osm.pbf

Havinig some errors here with --coastlinefile option:

java.lang.OutOfMemoryError: Java heap space
at java.util.HashMap.addEntry(HashMap.java:753)
at java.util.HashMap.put(HashMap.java:385)
at uk.me.parabola.mkgmap.reader.osm.ElementSaver.addPoint(ElementSaver.java:111)
at uk.me.parabola.mkgmap.reader.osm.bin.OsmBinHandler$BinParser.parseDense(OsmBinHandler.java:101)
at crosby.binary.BinaryParser.parse(BinaryParser.java:105)
at crosby.binary.BinaryParser.handleBlock(BinaryParser.java:50)
at crosby.binary.file.FileBlock.process(FileBlock.java:109)
at crosby.binary.file.BlockInputStream.process(BlockInputStream.java:15)
at uk.me.parabola.mkgmap.reader.osm.bin.OsmBinMapDataSource.load(OsmBinMapDataSource.java:61)
at uk.me.parabola.mkgmap.reader.osm.CoastlineFileLoader.loadFromFile(CoastlineFileLoader.java:90)
at uk.me.parabola.mkgmap.reader.osm.CoastlineFileLoader.loadFile(CoastlineFileLoader.java:119)
at uk.me.parabola.mkgmap.reader.osm.CoastlineFileLoader.loadCoastlinesImpl(CoastlineFileLoader.java:133)
at uk.me.parabola.mkgmap.reader.osm.CoastlineFileLoader.loadCoastlines(CoastlineFileLoader.java:79)
at uk.me.parabola.mkgmap.reader.osm.SeaGenerator.init(SeaGenerator.java:134)
at uk.me.parabola.mkgmap.reader.osm.OsmMapDataSource.pluginChain(OsmMapDataSource.java:162)
at uk.me.parabola.mkgmap.reader.osm.OsmMapDataSource.setupHandler(OsmMapDataSource.java:130)
at uk.me.parabola.mkgmap.reader.osm.xml.Osm5MapDataSource.load(Osm5MapDataSource.java:69)
at uk.me.parabola.mkgmap.main.MapMaker.loadFromFile(MapMaker.java:144)
at uk.me.parabola.mkgmap.main.MapMaker.makeMap(MapMaker.java:56)
at uk.me.parabola.mkgmap.main.Main$1.call(Main.java:222)
at uk.me.parabola.mkgmap.main.Main$1.call(Main.java:219)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)

How to fix this?

regards

mira

ligfietser · 2011-10-26T09:20:14.000Z

I think you have to ask this on the mkgmap mailing list, this is getting too complicated
Out of memory, maybe helps setting java xms or xmx settings lower or higher?

java -Xms1500m -Xmx1500m -ea -jar etc

csdf · 2011-10-26T10:25:22.000Z

Yep, the -Xmx option should do it. The units are in megabytes (sort of) so you can’t set it higher than your actual RAM.

miramikes · 2011-10-26T18:05:23.000Z

Hi,

csdf:

Yep, the -Xmx option should do it. The units are in megabytes (sort of) so you can’t set it higher than your actual RAM.

I raised -Xmx to -Xmx3074m (my system has 4GB RAM) … in this settings my system was heavily loaded for 4hours … no error message, but also nothing happened … I mean task wasn’t finished, no progress at all.

Some interesting ideas here:
http://article.gmane.org/gmane.comp.gis.openstreetmap.mkgmap.devel/7626/match=coastlinefile

Maybe cut coastlines_planet-latest.osm.pbf file to some smaller containing just for my case important part.
Or generate my own coastline file just from some smaller area.

Any thoughts/suggestions?

regards

mira

ligfietser · 2011-10-26T20:04:11.000Z

You could also try to split the south america abstract from http://download.geofabrik.de/osm/ directly with your splitter areas.list file (I suppose you’ve splitted now Argentina?)

java -Xmx1500m -jar splitter.jar --output=pbf --split-file=areas.list --overlap=3000 south-america.osm.pbf

The idea is that the coastline outside of the countryborders are complete and not broken.

miramikes · 2011-10-27T09:24:47.000Z

Hi,

I tried split my patagonia.osm file differently
before --max-nodes=450000
now --max-nodes=1500000
This generated just one osm.gz file because patagonia.osm is just 180MB.

Then builded img with my srmt files bring me map without “flooding”

I tried this because I wanted fix some error from mkgmap and this came as nice side effect, not solution in all cases but helped me.

Now I would like improve my map even more.

Are there somewhere hiking TYP and Style files? I need them for inspiration.

Is it possible have also shading for a map?
http://wiki.openstreetmap.org/wiki/Relief_maps
http://wiki.openstreetmap.org/wiki/Hillshading_with_Mapnik

regards

mira

ligfietser · 2011-10-27T11:10:09.000Z

You can search for a hiking map and look further to find their styles (or ask the developer):
http://wiki.openstreetmap.org/wiki/OSM_Map_On_Garmin/Download

Mkgmap has a few examples to use hiking route relations:
http://www.mkgmap.org.uk/svn/wsvn/mkgmap/resources/styles/

About shading:
http://forum.openstreetmap.org/viewtopic.php?pid=198599#p198599
Better use the Garmin basemap on your gps…

miramikes · 2011-10-28T11:07:56.000Z

ligfietser:

You can search for a hiking map and look further to find their styles (or ask the developer):
http://wiki.openstreetmap.org/wiki/OSM_Map_On_Garmin/Download

Is it possible convert txt and TYP there and back easily?
I would like to use polygon part which I already did with line and poit parts from other TYP file.
Doing copy/paste on txt file would be easy.

unspecified (0x00) VS english (0x04) ?
I would like to have one-language map (english) … What is better choise for me?

ligfietser:

Mkgmap has a few examples to use hiking route relations:
http://www.mkgmap.org.uk/svn/wsvn/mkgmap/resources/styles/

I will go into latter

mira

Seldom · 2011-10-28T15:27:17.000Z

A detailed description of TYP files and their underlying text files can be found in the cgpsmapper manual, and they can be compiled with cgpsmapper free. AFAIK TYP files created with cgpsmapper work with mkgmap compiled IMG files.

ligfietser · 2011-10-28T17:36:28.000Z

miramikes:

Is it possible convert txt and TYP there and back easily?
I would like to use polygon part which I already did with line and poit parts from other TYP file.
Doing copy/paste on txt file would be easy.

Yes, you can do it with typ viewer:
http://opheliat.free.fr/michel40/TYPViewer3.5/

miramikes · 2011-10-31T18:44:23.000Z

ligfietser:

Yes, you can do it with typ viewer:
http://opheliat.free.fr/michel40/TYPViewer3.5/

Thank you TYPViewer works fine for me.

ligfietser:

Maybe use another source (Aster data) but I don’t know how ‘open’ that data is. If the map is only for your own use maybe they allow it to use.

As I am not still satisfied with contours (lot of holes in srtm for my area) I downloaded data from Aster (they are free for personal usage):

http://asterweb.jpl.nasa.gov/gdem-wist.asp

I got bunch of files …

ASTGTM2_S50W068.zip ASTGTM2_S50W068.zip.xml
ASTGTM2_S50W069.zip ASTGTM2_S50W069.zip.xml
ASTGTM2_S50W070.zip ASTGTM2_S50W070.zip.xml
and so on

each zip file contain tif files:
ASTGTM2_S50W068_dem.tif
ASTGTM2_S50W068_num.tif
README.pdf

Is it possible proceed them to obtain contours? Did I downloaded right data?

regards

mira

miramikes · 2011-11-02T12:28:47.000Z

miramikes:

As I am not still satisfied with contours (lot of holes in srtm for my area) I downloaded data from Aster (they are free for personal usage)
Is it possible proceed them to obtain contours?

I am now trying convert aster data to contour osm by modified perl script contour.pl which get here:
http://gis.638310.n2.nabble.com/contour-map-error-td5183094.html#a5238778

Unfortunately having some java related problem (probably classpath):
Caused by: java.lang.ClassNotFoundException: Main
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: Main. Program will exit.

maybe somebody here can help me fix this?

BTW: Is it possible to post attachment here? I would like to send here contour.pl script when I finish it.
Maybe someone here can help me tune it better.

regards

mira

miramikes · 2011-11-15T22:42:51.000Z

Hi,

I just want to inform all who was following this thread that I succeeded to make contour from Aster v2 and Cgiar too.
Cgiar is the far best source of elevation data at the moment ( fixed all anomalies ).

I want to publish here perl script I did for data conversion, maybe they can be useful for someboby, maybe somebody can improve them.

Perl script for converting Aster dem.tif to hgt:

#!/usr/bin/perl -w

while (< *.tif>) {

$tile = $_;
$tile =~ s/dem.tif//;
$tile =~ s/ASTGTM2//;
$tile =~ m/([SN])(\d+)([EW])(\d+)/;

`gdalwarp -of GTiff -srcnodata 32767  -rcs -order 3 -ts 1201 1201 -multi ASTGTM2_${tile}_dem.tif ${tile}.tif` ;

`gdal_translate -of SRTMHGT ${tile}.tif ${tile}.hgt` ;

`rm ${tile}.tif ${tile}.hgt.aux.xml` ;

}

Perl script for converting cgiar 1 degree tiles to hgt:

#!/usr/bin/perl -w

while (< *.zip>) {
$file_asc = $_;
$file_asc=~ s/.zip//;

unless (-e “${file_asc}.asc”) {unzip $_};
open(READ, “${file_asc}.asc” ) or die $! ;
@lines = ;
close (READ);

  $x = $lines[2];
  $y = $lines[3];

  $x =~ s/xllcorner     //;
  $y =~ s/yllcorner     //;

if ($x > 0 ) {
$lat = “N”;
} else {
$lat = “S”;
}

if ($y > 0 ) {
$lon = “E”;
} else {
$lon = “W”;
}

$rx = sprintf(“%.0f”, $x);
$ry = sprintf(“%.0f”, $y);

$arx = abs $rx ;
$ary = abs $ry ;

$tile = “$lat” . “$ary” . “$lon” . “0” . “$arx” ;

`gdalwarp -of GTiff -rcs -order 3 -ts 1201 1201 -multi ${file_asc}.asc ${tile}.tif` ;

`gdal_translate -of SRTMHGT ${tile}.tif ${tile}.hgt` ;

`rm ${file_asc}.asc` ;

`rm ${tile}.tif ` ;
`rm ${tile}.hgt.aux.xml ` ;

}