Introduction to Geographic Information Systems (GIS) part I Marcel Fortin GIS & Map Librarian, University of Toronto January 8 th, 2007 This presentation
Objectives ► Understand the basic premises of GIS Cartography / Map Making Geographic Analysis ► By Learning the basics of GIS software and databases Different geographic datasets Basic map creation
Agenda ► What is not and what is GIS? ► What are Geospatial Data? ► What is not GIS? ► Examples of GIS applications ► Software FYI ► Data Access FYI ► GIS Services/Education at the U of T ► Demos ► Where do Google Earth/Maps Fit in
What is not GIS?
What is not a GIS – Scanned Maps
E-maps are not a GIS
GPS IS NOT GIS
GIS not CAD
What is GIS? A GIS is a computer application with the capacity to assemble, store, manipulate, analyze, and display geographically referenced information (geospatial data)
What are Geospatial data? Data must “fit” with other data Geospatial data are georeferenced data (ie. they have a geographic field) postal codes postal codes Province Province City City longitude and latitude longitude and latitude lot numbers lot numbers concession numbers concession numbers census tract census tract wards wards Air photographs Air photographs Etc. Etc.
Provinces
Postal Data
Longitude / Latitude
Parcel Information
Air Photos (or other raster imagery)
Road Network File
Combination of “Layers” 1999 Orthorectified Aerial photograph overlayed with the DMTI Spatial’s Street Network file for Ontario
Vector and Raster 01 VectorRaster.mxd
Projection Issues projections.mxd
Thematic / Census Mapping census.mxd
Topographic Mapping 04.0 TopographicMapping.mxd
3D Mapping 3dmapping.mxdLINE FBS.dwg 030m11_0100_deme.dem (global mapper) 06_3DToronto1.sxd06_3DToronto2.sxd07_3DVancouver.sxd
Software FYI
Software Campus “Standard” ESRI Site License (campus consortium) ArcGIS (desktop)ArcGIS (desktop) ArcInfoArcInfo ArcEditorArcEditor ArcView (free version now available from map library)ArcView (free version now available from map library) ArcIMS (web) / ArcSDE (spatial data engine) / ArcGIS ServerArcIMS (web) / ArcSDE (spatial data engine) / ArcGIS Server
Making Sense of “ArcWording” Functions Umbrella Flavour 3D Analyst, Spatial Analyst, etc. Extensions ArcGISArcInfoArcEditorArcView ArcMap|ArcToolbox|ArcScene|ArcCatalog
Other Software Options Commercial Microsoft MapPoint (software licensing office)Microsoft MapPoint (software licensing office) OracleOracle FMEFME AutoCad MapAutoCad Map ArcGIS for Autocad (see autocad/index.html)ArcGIS for Autocad (see autocad/index.html) Mapinfo (site license via Geography Department)Mapinfo (site license via Geography Department) Global MapperGlobal Mapper Open Source GRASS (desktop)GRASS (desktop) MapServer (web)MapServer (web) ThubanThuban QGISQGIS See for more software titlesSee for more software titleshttp://
Data FYI
Data Issues ► Data Culture (Canada vs. USA) Feast or Famine ► Data Management ► Datasets of Interest ► Data Selection ► Data Creation
Data Culture : Feast or Famine YearDatasets Web Server / Intranet Media Gb (a few 100 files) 3 CDs Over Tb (millions of files) 1200 CDs/DVDs
Data Culture – Mixed Bag ► Federal government Geobase.ca NTDB DEMs now free! Geogratis.ca NTDB topo data and raster imagery now free! ► Provincial Governments Ontario OGDE via libraries or vendors Manitoba free from download BC and Alberta pay for some free download for others ► Municipal Toronto pay Mississauga pay Brampton pay Burlington free Peterborough free London Free
Data Selection and Accuracy
Data Starting Point
Data Creation
Data Creation – Waste Disposal Sites 08DataCreation.mxd
Future Historical GIS 1860’s Map of Toronto with roads overlayed. Note the Lakeshore highway’s location.
Open Street Map
Examples and Demos
Common Examples of GIS
Where do Google Earth/Maps fit in? Convergence or Confusion?
Google Earth The Good It’s Fun Geographic Literacy Geographic Interest Technology Boom Ease of Use Collaboration and sharing of hundreds of digitizing projects
Google Earth The Good
Google Earth The Bad “Why do we still fund GIS Projects when there’s Google Earth” – Treasury Board Official at Depository Services Program Function
Google Earth The Ugly
Google Earth GIS Convergence Can now convert GIS Layers to KML format even in ArcGIS Can do your own cartography Can do some analysis
Future GPS / GIS Convergence 11 GPS.mxd
Map & GIS Services at U of T Libraries 1960’s Map Library in Geography Department 1970’s Moved to Robarts 1 st floor 1996 Merged and moved to 5 th floor Robarts 1999 GIS & Map Librarian Hired 2002 Data & GIS Services Area Created 2002 GIS Analyst Hired 2003 UTM GIS Librarian hired (North American first) 2006 UTM GIS Technician hired – Data & GIS Services expansion (unMAGICed?)
GIS Staff St. George Campus GIS Team GIS & Map LibrarianGIS & Map Librarian Map CataloguerMap Cataloguer Map ProcessorMap Processor GIS AnalystGIS Analyst Graduate GIS Assistant(s)Graduate GIS Assistant(s) UTMississauga Campus GIS and Data LibrarianGIS and Data Librarian GIS TechnicianGIS Technician
Communication & Teaching GEODATA-l Listserv New Datasets Software upgrades Workshops RCAT Lab One on one teaching No Grad Courses anymore ESRI Virtual Campus
GIS Services Facts ► 1960’s Map Library in Geography Department ► 1970’s Moved to Robarts 1 st floor ► 1996 Merged and moved to 5 th floor Robarts ► 1999 GIS & Map Librarian Hired ► 2002 Data & GIS Services Area Created ► 2002 GIS Analyst Hired ► 2003 UTM GIS Librarian hired
San Francisco data ► California.mx ► California Spatial Information Library ► San Francisco Government GIS