Difference between revisions of "Setting up walkyourplace"

Revision as of 13:40, 8 April 2014

>> return to Cedeus IDE

Steps to Install the WalkYourPlace tool for Santiago

General prep steps

1. create new Ubuntu 12.04 VM with LA(M)PS ( 7773, lautaro:17022)
2. install tomcat 7 (or jetty)
3. install GeoServer + WPS plugin
4. install Php cURL (http://php.net/curl)
   • geoserver should run on port 8080, otherwise modify "call_wps.php".
5. install OpenTripPlanner (running on GeoNode VM (146.155.17.54:8080) - and compile graph with
   • Santiago OSM data
   • Santiago GTFS data
   • => test if it works
6. install PostgreSQL + PostGIS (17032 : db: wypdb)
   • install PostgreSQL

Install for Calgary

1. Install DBs
   • install crime DB (for the crimes, we considered 12 types of crime as listed in http://crimemap.calgarypolice.ca/ : weighing is in AggregationService.py)
   • install GTFS DB
2. get Browser client code "WPSClient"
   • modify browser client end point (WPS, etc.) in file call_wps.php to http://146.155.17.113:17088/geoserver/
   • put in apache's /var/www/ (i.e. /var/www/wypwps)
   • note: the map tiles, as defined in js/main.js, will still come from http://136.159.122.90/PHPTileServer/CalgaryGrey/{z}/{x}/{y}.png However, in case the TileServer is down its possible to add OSM map with

     var osmmap = L.tileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {attribution: 'Map data © <a href="http://openstreetmap.org">OpenStreetMap</a> contributors'});

     plus adding this to the layer selection plus as default layer (PS: also remove setting of the map bounds, see map.setMaxBounds(bounds);)
3. get backend code
   • GeoServer WPS servers *.jar files = on for each model => install in GeoServers */WEB-INF/lib folder => restart GeoServer
     • check if it works with http://146.155.17.113:8080/geoserver/ows?service=wps&version=1.0.0&request=GetCapabilities
   • GeoProcessing Engine (access model code in Python) => put in any folder
   • modify the postgres DB access in postgis.conf
   • next I would also need modify the OpenTripPlaner URL in in the jar of the WPS module = model. However, I am not having the sources right now, so the Walkshed request is send to the GISciencegroup server.
   • install "psycopg2" python modul which allows access to PostgrSQL pip install psycopg2 (for that, install before "python-dev" and "libpq-dev")
   • start each model with "run.py"
     • it may be necessary to change run.py (causes error at the moment) since I am not having gnome-terminal available via command line. At the moment I am starting the scripts using commandline python xxx.py &.
       1. the Management Service (for pedestrian network) will listen on http://0.0.0.0:8363/
       2. the Crime Service will listen on http://0.0.0.0:8366/
       3. the Aggregation Service will listen on http://0.0.0.0:8364/
       4. the POI Service will listen on http://0.0.0.0:8365/
     • My running processes I can see then with ps -u ssteinig
     • ToDo: check if it is possible to use "subprocess.Popen" or "Multiprocess" (see examples on stackoverflow and here)
   • Note, not sure, but in ManagementService.py the GeoServer URL is defined with http://127.0.0.1:8080/geoserver - maybe this needs to be changed (for use in a VM???)
4. test if Calgary scenario works => see next part

Testing Calgary scenario

1. choosen params:
   • pos lat = 51.05747321278561
   • pos lon = -114.0794563293457
   • 15 min walkshed
   • walkspeed 1.38 m/sec
2. Then this is how the web browser client request for the pedestrian network model for calgary looks like:

   GET call_wps.php?wps=pedestrian&start_point=51.05747321278561,-114.0794563293457&walking_time_period=15&walking_speed=1.38&distance_decay_function=false

3. the subsequent call to the managment service would be:

   http://146.155.17.113:17088/geoserver/ows?service=wps&version=1.0.0&request=Execute&Version=1.0.0&Identifier=gs:Management&DataInputs=StartPoint=51.0574732128,-114.079456329;WalkingTimePeriod=15;WalkingSpeed=1.38

   • Routing/OTP WPS: this call will return the pedestrian walkshed as JSON object

     http://146.155.17.113:17088/geoserver/ows?service=wps&version=1.0.0&request=execute&identifier=gs:Walkshed_Pedestrian&datainputs=StartPoint=51.0574732128,-114.079456329;WalkingPeriod=15;WalkingSpeed=1.38;WalkshedOutput=SHED

   • Crime WPS: for the same data and the pedestrian-network model we receive a list of crime features, with the following call:
     • Calgary server

       http://136.159.122.90:8080/geoserver/ows?service=wps&version=1.0.0&request=execute&identifier=gs:Crime_Pedestrian&datainputs=Walkshed=%7B%22type%22:%22Polygon%22,%22coordinates%22:%5B%5B%5B-114.09364571378056,51.057144582993836%5D,%5B-114.09286815708892,51.05359381755474%5D,%5B-114.09101115708,51.050834058520664%5D,%5B-114.09075927937053,51.05080998647081%5D,%5B-114.0870286,51.0516827%5D,%5B-114.08586777200182,51.04970977429437%5D,%5B-114.0835059,51.0489783%5D,%5B-114.08184778623112,51.0498709384076%5D,%5B-114.081181,51.0536508%5D,%5B-114.0793914,51.0547065%5D,%5B-114.077687,51.0557314%5D,%5B-114.0756248,51.0568823%5D,%5B-114.0750158,51.0570965%5D,%5B-114.0736901,51.0573512%5D,%5B-114.06926177015508,51.055915080229724%5D,%5B-114.06619893997784,51.05694155563417%5D,%5B-114.06579011626843,51.0581622658825%5D,%5B-114.067673398873,51.058916548778726%5D,%5B-114.07143185670641,51.061423362491404%5D,%5B-114.07184987616904,51.06168921938163%5D,%5B-114.0741837,51.0613545%5D,%5B-114.07794224224338,51.06228401160695%5D,%5B-114.07918450576179,51.06260346516831%5D,%5B-114.07993046849634,51.06280359284396%5D,%5B-114.08066137191179,51.062350982627464%5D,%5B-114.08244401432806,51.06127600012983%5D,%5B-114.08582266933304,51.061346817139835%5D,%5B-114.08616082731021,51.06129711945887%5D,%5B-114.0888935,51.0575163%5D,%5B-114.09170271289915,51.05843118482227%5D,%5B-114.09364571378056,51.057144582993836%5D%5D%5D%7D

     • Stgo test server

       http://146.155.17.113:17088/geoserver/ows?service=wps&version=1.0.0&request=execute&identifier=gs:Crime_Pedestrian&datainputs=Walkshed={%22type%22:%22Polygon%22,%22coordinates%22:[[[-114.09364571378056,51.057144582993836],[-114.09286815708892,51.05359381755474],[-114.09101115708,51.050834058520664],[-114.09075927937053,51.05080998647081],[-114.0870286,51.0516827],[-114.08586777200182,51.04970977429437],[-114.0835059,51.0489783],[-114.08184778623112,51.0498709384076],[-114.081181,51.0536508],[-114.0793914,51.0547065],[-114.077687,51.0557314],[-114.0756248,51.0568823],[-114.0750158,51.0570965],[-114.0736901,51.0573512],[-114.06926177015508,51.055915080229724],[-114.06619893997784,51.05694155563417],[-114.06579011626843,51.0581622658825],[-114.067673398873,51.058916548778726],[-114.07143185670641,51.061423362491404],[-114.07184987616904,51.06168921938163],[-114.0741837,51.0613545],[-114.07794224224338,51.06228401160695],[-114.07918450576179,51.06260346516831],[-114.07993046849634,51.06280359284396],[-114.08066137191179,51.062350982627464],[-114.08244401432806,51.06127600012983],[-114.08582266933304,51.061346817139835],[-114.08616082731021,51.06129711945887],[-114.0888935,51.0575163],[-114.09170271289915,51.05843118482227],[-114.09364571378056,51.057144582993836]]]}

     • if the python server/script is started, the crime data can be also be called using

       http://127.0.0.1:8366/crime?walkshed={%22type%22:%22Polygon%22,%22coordinates%22:[[[-114.09364571378056,51.057144582993836],[-114.09286815708892,51.05359381755474],[-114.09101115708,51.050834058520664],[-114.09075927937053,51.05080998647081],[-114.0870286,51.0516827],[-114.08586777200182,51.04970977429437],[-114.0835059,51.0489783],[-114.08184778623112,51.0498709384076],[-114.081181,51.0536508],[-114.0793914,51.0547065],[-114.077687,51.0557314],[-114.0756248,51.0568823],[-114.0750158,51.0570965],[-114.0736901,51.0573512],[-114.06926177015508,51.055915080229724],[-114.06619893997784,51.05694155563417],[-114.06579011626843,51.0581622658825],[-114.067673398873,51.058916548778726],[-114.07143185670641,51.061423362491404],[-114.07184987616904,51.06168921938163],[-114.0741837,51.0613545],[-114.07794224224338,51.06228401160695],[-114.07918450576179,51.06260346516831],[-114.07993046849634,51.06280359284396],[-114.08066137191179,51.062350982627464],[-114.08244401432806,51.06127600012983],[-114.08582266933304,51.061346817139835],[-114.08616082731021,51.06129711945887],[-114.0888935,51.0575163],[-114.09170271289915,51.05843118482227],[-114.09364571378056,51.057144582993836]]]}

Modify code for Santiago

1. install PyCharm to modify client code and backend code
   • GeoServer WPS location (IP/address)
   • Postgres location and access: postgis.conf
   • Tileserver location/code in client
   • OTP location in backend (jar file)
   • remove crime calculation in ManagementService.py
2. deploy code:
   • client side code => install on var/www/ of apache server
   • if there are no changes: GeoProcessing Engine(s) => put in whatever folder and run "run.py"
   • GeoServer WPS servers *.jar files => put in GeoServers */WEB-INF/lib folder (requires restart of GeoServer)
3. Test