Recently my company is developing smart parking application and is very important path is map. Google map is great system with a lots of function but when use for particular application, there are quite a few limitations as
- Ability to customize low
- Slow update if you want to add new data
- Access restriction and charge requests
- Not self-control
So many companies choose to build their own system with high customization and fully independent. I began to learn how to build map system and search for answer for a few questions
- What is OpenStressMap ?
- How to load a small area map data ?
- What database management for saving map data ?
- How to import map ?
- How to render map ?
- How to preview map on web platform ?
Find out related issues, i obtained the following result
Openstressmap (OSM) : the map database open worldwide and you can download and use it.
PostgresSQL : database management be used to store map data for OpenStressMap .
PostGIS : extend of PostgresSQL to support query and search with geographic data.
Osm2pgsql : tool support import data to PostGIS-PostgresSQL from file .osm
Mapnik : open source C/C++ support geographic data modeling and render tiles
Apache HTTP : webserver open source to serve request map tiles
GEOS : C/C++ library support process geographic data
Carto : CSS map-styling
Ok Let’s get started on creating on your own map system
Step 1 : Check python current version and upgrade to 2.7.6 version
-) Download python source, compile and build
$ wget –no-check-certificate https://www.python.org/ftp/python/2.7.6/Python-2.7.6.tar.xz
$ tar xf Python-2.7.6.tar.xz
$ cd Python-2.7.6
$ ./configure –prefix=/usr/local
$ make && make altinstall
-) Backup current pythond version
$ mv /usr/bin/python /usr/bin/python2.6.6
-) Apply the python new version to default system
$ ln -sf /usr/local/bin/python2.7 /usr/bin/python
$ head -1 /usr/bin/yum
$ sed -i -e ‘s|python|python2.6.6|’ /usr/bin/yum
$ head -1 /usr/bin/yum
Step 2 : Install development tools
$ yum update
$ yum groupinstall ‘Development Tools’
$ yum install libpng libtiff libjpeg freetype gdal cairo pycairo sqlite geos boost curl libcurl libicu bzip2-devel libpng-devel libtiff-devel zlib-devel libjpeg-devel libxml2-devel python-setuptools proj-devel proj proj-epsg proj-nad freetype-devel libicu-devel gdal-devel sqlite-devel libcurl-devel cairo-devel pycairo-devel geos-devel protobuf-devel protobuf-c-devel lua-devel cmake proj boost-thread proj-devel autoconf automake libtool pkgconfig ragel gtk-doc glib2 glib2-devel libpng libpng-devel libwebp libtool-ltdl-devel python-devel harfbuzz harfbuzz-devel harfbuzz-icu boost-devel cabextract xorg-x11-font-utils fontconfig perl-DBD-Pg mesa-libGLU-devel postgresql-devel
Step 3 : Upgrade GCC version
$ wget http://people.centos.org/tru/devtools-2/devtools-2.repo -O /etc/yum.repos.d/devtools-2.repo
$ yum install devtoolset-2-gcc devtoolset-2-binutils
$ yum install devtoolset-2-gcc-c++ devtoolset-2-gcc-gfortran
$ /opt/rh/devtoolset-2/root/usr/bin/gcc –version
$ scl enable devtoolset-2 bash
$ source /opt/rh/devtoolset-2/enable
Step 4 : Install PostgresSQL
$ wget https://yum.postgresql.org/9.4/redhat/rhel-6-x86_64/pgdg-centos94-9.4-3.noarch.rpm
$ rpm -ivh pgdg-centos94-9.4-3.noarch.rpm
$ yum install postgresql94-server postgis2_94
$ yum install postgresql94-contrib
Step 5 : Build Boot library
$ wget https://downloads.sourceforge.net/project/boost/boost/1.65.1/boost_1_65_1.tar.bz2
$ tar -xvf boost_1_65_1.tar.bz2
$ ./bootstrap.sh
$ ./b2
$ ./b2 install
Step 6 : Build and install Mapnik
$ git clone https://github.com/mapnik/mapnik.git
$ cd mapnik
$ git checkout v2.3.x
$ ./configure –prefix=/opt/mapnik
$ make
$ make install
$ sudo ldconfig
Step 7 : Build GEOS
$ wget http://download.osgeo.org/geos/geos-3.6.1.tar.bz2
$ tar -xvf geos-3.6.1.tar.bz2
$ ./configure && make && sudo make install
Step 8 : Build Osm2pgsql
$ sudo yum install cmake make gcc-c++ boost-devel expat-devel zlib-devel \
bzip2-devel postgresql-devel proj-devel proj-epsg lua-devel
$ git clone git://github.com/openstreetmap/osm2pgsql.git
$ cd osm2pgsql
$ mkdir build && cd build && cmake .. -DCMAKE_PREFIX_PATH=/usr/pgsql-9.4/
$ make && make install
Step 9 : Install Apache HTTP
$ yum install httpd
$ yum install httpd-devel
Step 10 : Install tile mod
$ git clone git://github.com/openstreetmap/mod_tile.git
$ cd mod_tile
$ ./autogen.sh
$ ./configure -with-apxs=/usr/sbin/apxs
$ cp -rf mapnik/include/mapnik/* /usr/include/mapnik
$ cp mapnik/include/mapnik/geometry/box2d.hpp /usr/include/mapnik
$ make
$ sudo make install
$ sudo make install-mod_tile
$ sudo ldconfig
Step 11 : Install Casto use node package manage
$ npm install -g carto
Step 12 : Config render tile mod
$ vi /usr/local/etc/renderd.conf
append the below content
[renderd]
;socketname=/var/run/renderd/renderd.sock
num_threads=4
tile_dir=/var/lib/mod_tile
stats_file=/var/run/renderd/renderd.stats
[mapnik]
plugins_dir=/usr/local/lib/mapnik/input
font_dir=/usr/local/lib/mapnik/fonts
font_dir_recurse=1
[default]
URI=/osm_tiles/
TILEDIR=/var/lib/mod_tile
XML=/root/openstreetmap-carto/mapnik.xml
HOST=map.azstack.com
TILESIZE=256
Step 13 : Config mod tile
$ vi /etc/httpd/conf.d/mod_tile.conf
LoadModule tile_module /etc/httpd/modules/mod_tile.so
ServerName map.azstack.com
ServerAlias map.azstack.com
DocumentRoot /var/www/html
ModTileTileDir /var/lib/mod_tile
LoadTileConfigFile /usr/local/etc/renderd.conf
ModTileEnableStats On
ModTileBulkMode Off
ModTileRequestTimeout 3
ModTileMissingRequestTimeout 10
ModTileMaxLoadOld 16
ModTileMaxLoadMissing 50
ModTileVeryOldThreshold 31536000000000
ModTileRenderdSocketName /var/run/renderd/renderd.sock
ModTileCacheDurationMax 604800
ModTileCacheDurationDirty 900
ModTileCacheDurationMinimum 10800
ModTileCacheDurationMediumZoom 13 86400
ModTileCacheDurationLowZoom 9 518400
ModTileCacheLastModifiedFactor 0.20
ModTileEnableTileThrottling Off
ModTileEnableTileThrottlingXForward 0
ModTileThrottlingTiles 10000 1
ModTileThrottlingRenders 128 0.2
LogLevel debug
Step 14 : Setup PostGiS
$ su -i postgres
$ createuser root
$ psql -d template1 -c “ALTER USER root WITH PASSWORD ‘password’;”
$ psql postgres
$ CREATE DATABASE gis;
$ psql gis
$ CREATE EXTENSION postgis;
$ CREATE EXTENSION postgis_topology;
Step 15 : Import data .osm (download from OpenStressMap)
$ osm2pgsql –slim -d gis_az -C 1600 –number-process 1 -S /usr/local/share/osm2pgsql/default.style map-hieu.osm
Step 16 : Install Casto
$ git clone git://github.com/gravitystorm/openstreetmap-carto.git
$ cd openstreetmap-carto
$ git checkout `git rev-list -n 1 –before=”2016-12-04 00:00″ master`
# Compile and download shape files
$ carto project.mml > mapnik.xml
$ scripts/get-shapefiles.py
Step 17 : Start Apache HTTP with render mode
$ systemctl start httpd
$ mkdir /var/run/renderd
$ mkdir /var/lib/mod_tile
$ renderd -f -c /usr/local/etc/renderd.conf &
$ render_list -m default -a -z 0 -Z 17 -s /var/run/renderd/renderd.sock
Map client to show map
https://github.com/kimxuyenthien/map_openstressmap.git
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