aleung
6/16/2017 - 6:01 AM

Generate latest offline map for OsmAnd

Generate latest offline map for OsmAnd

README.md
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Install

Download OsmAndMapCreator and extract.

Install osmupdate and osmconvert into path.

cd ~/bin
wget -O - http://m.m.i24.cc/osmupdate.c | cc -x c - -o osmupdate 
wget -O - http://m.m.i24.cc/osmconvert.c | cc -x c - -lz -O3 -o osmconvert

Download full map data for the first time

Download dump of China area PBF file from http://download.geofabrik.de/asia/china-latest.osm.pbf

Create map

Put PBF file and files in this gist into working directory. In my example it's /Users/leoliang/tmp/osm-mapbuild.

Run createmap.sh. It does these steps:

  1. Download latest patch to make map data up to date.
  2. Generate OBF map file used by OsmAnd.

Generating full China map takes 90 minutes and output OBF file is 845M. Current script uses -b parameter to filter out middle Guangdong area to reduce time.

To automatically run everyday, add a cron job:

17 6 * * * PATH="/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:$HOME/bin"; cd ~/tmp/osm-mapbuild; ./createmap.sh > /tmp/osm-mapbuild.log 2>&1

Copy OBF file to Android

adb push China-latest_2.obf /sdcard/Android/data/net.osmand/files/
createmap.sh
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#!/bin/bash
set -e

# Where OsmAndMapCreator is extracted
OsmAndMapCreatorPath=/Users/LeoLiang/apps/OsmAndMapCreator

# Crop centra Guangdong: -b=111,21,115,25 (-b="x1,y1,x2,y2"). You could change to the area you want.
osmupdate --base-url=http://download.geofabrik.de/asia/china-updates/ -b=111,21,115,25 china-latest.osm.pbf china-updated.osm.pbf
mv china-updated.osm.pbf china-latest.osm.pbf

osmconvert china-latest.osm.pbf --out-statistics

dir=`pwd`

cd $OsmAndMapCreatorPath
java -Djava.util.logging.config.file=logging.properties -Xms64M -Xmx10G -cp "./OsmAndMapCreator.jar:lib/OsmAnd-core.jar:./lib/*.jar" net.osmand.data.index.IndexBatchCreator $dir/batch.xml

cd $dir

mv China-latest_2.obf Guangdong.obf
batch.xml
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<?xml version="1.0" encoding="utf-8"?>
<batch_process>
	<process_attributes mapZooms="" renderingTypesFile="" zoomWaySmoothness=""
		osmDbDialect="sqlite" mapDbDialect="sqlite"/>

	<!-- There are 3 subprocess :
		 1. Download fresh osm files from servers to 'directory_for_osm_files' (override existings).
		 2. Generate index files from all files in 'directory_for_osm_files' and put all indexes into 'directory_for_index_files'
		 3. Upload index files from 'directory_for_index_files' to googlecode.
		 If directory directory_for_uploaded_files is specified all uploaded files will be moved to it
		 All these subprocess could be ran independently ! So you can create some files check them and after that try to upload on googlecode,
		 or you can upload any file you have to googlecode (just put into 'directory_for_index_files')
	 -->
	 <!-- zoomWaySmoothness - 1-4, typical mapZooms - 11;12;13-14;15-   -->
	<process
		directory_for_osm_files="/Users/leoliang/tmp/osm-mapbuild"
		directory_for_index_files="/Users/leoliang/tmp/osm-mapbuild"
		directory_for_generation="/Users/leoliang/tmp/osm-mapbuild"
		indexPOI="true"
		indexRouting="true"
		indexMap="true"
		indexTransport="false"
		indexAddress="true">
		<!-- Add wget="C:/Program Files/GNUWin32/bin/wget.exe" to process, to use wget for download.
			 On linux systems if wget is in your path it can be wget="wget" or you can make own script with wget command:
			 wget="/path/to/script/wget.sh"
			 Defaultly enabled parameter of wget is: &-&-read-timeout=5 that prevents hanging of download from  cloudmade/geofabrik server
		-->

	</process>
</batch_process>