Masachusetts Institute of Technology - Department of Urban Studies and Planning

Administrative

• Problem Set B (database design) - due Thursday (April 5, after extension)
• That ends the 11.523 portion of the semester
• Lab #5 (Raster analysis and model builder) - last part (model builder) is due today
• Lab #6 (Metro Boston Modeling using TINs, zonal stats and QGIS - mostly optional) - due today for those in 11.521

Overview

• Comments and discussion about hands-on test
  • Expanded solutions have been uploaded to exam page of class website
  • Graded exams have been uploaded to Stellar
• Introduction to Web Mapping and Geoprocessing Services
  • Examine MassGIS webmapping services that we have used 
  • Today: Lab #7 - Web mapping exercise (no need to turn in anything)
  • Eric Huntley: Make a Web Map Using LeafletJS
  • Lab Exercise (DUSPViz tutorial): http://duspviz.mit.edu/web-map-workshop/leaflet-js/
  • Presentation slides: http://duspviz.mit.edu/tutorials/web-maps-101
  • Thursday lecture:
  • Eric Huntley: An Intro to Carto with PostGIS
  • DUSPViz tutorial: http://duspviz.mit.edu/web-map-workshop/databases-leaflet-cartodb/
• Class Project part of semester - beginning Tuesday, April 10
• Visit Projects webpage: http://web.mit.edu/11.521/www/projects/index.html
• Look at last year's project reports:
• MAPC: Housing Rents:  http://mit.edu/11.521/proj16/project-reports/mapc_craiglist.pdf
• Singapore: Simulation of Housing Dynamics: http://mit.edu/11.521/proj16/SingaporeModel.pdf

Examine MassGIS Web Mapping Service

http://giswebservices.massgis.state.ma.us/geoserver/wms?dpi=120&request=GetMap&layers=GISDATA.EOTMAJROADS_ARC&srs=EPSG:4326&bbox=-71.1,42.35,-71.0,42.37&width=1000&height=300&format=image/png&service=wms&transparent=true

http://giswebservices.massgis.state.ma.us/geoserver/wms?dpi=120&request=GetMap&layers=GISDATA.NAVTEQRDS_ARC&srs=EPSG:4326&bbox=-71.1,42.35,-71.0,42.37&width=1000&height=300&format=image/png&service=wms&transparent=true

• Do you recognize the meaning of the parameters? Play with the values...
  • http://giswebservices.massgis.state.ma.us/geoserver/wms?
• dpi=120&
• request=GetMap&
• layers=GISDATA.EOTMAJROADS_ARC&
• srs=EPSG:4326&
• bbox=-71.1,42.35,-71.0,42.37&
• width=1000&
• height=300&
• format=image/png&
• service=wms&
• transparent=true
• Note that some services only produce maps at particular scales
  • Otherwise, get xml-tagged error message
• MassGIS web services homepage:
  
  • https://wiki.state.ma.us/display/massgis/Overview+of+MassGIS+Web+Mapping+Services+and+Applications
  
  

Today: Lab #7 - Web mapping exercise (no need to turn in anything)

• Eric Huntley: Make a Web Map Using LeafletJS
• DUSPViz tutorial: http://duspviz.mit.edu/web-map-workshop/leaflet-js/