geographic information systems (gis) data marcel fortin geographic information systems (gis) and map...

Geographic Information Geographic Information Systems (GIS) DataSystems (GIS) Data

Marcel FortinMarcel FortinGeographic Information Systems (GIS) and Map Geographic Information Systems (GIS) and Map

LibrarianLibrarianMap and Data LibraryMap and Data Library

December 7, 2009December 7, 2009

What is GIS?What is GIS?GIS is a computer application with the capacity to assemble, store, manipulate, analyze, and display geographically referenced information (geospatial data)

GIS Data : Vector / RasterGIS Data : Vector / Raster

Vector Data: pointsVector Data: points

Vector Data: linesVector Data: lines

Vector Data: PolygonsVector Data: Polygons

Vector Data: Attribute Vector Data: Attribute InformationInformation

Data EditingData Editing

GIS Data DisplayGIS Data Display

GIS Data AnalysisGIS Data Analysis

Vector Data PackagesVector Data Packages

Polygon LayersPolygon Layers

Point LayersPoint Layers

Line LayersLine Layers

Greater Toronto AreaGreater Toronto Area

Greater Toronto Area ClipGreater Toronto Area Clip

City of Toronto ClipCity of Toronto Clip

City of Toronto Zoomed inCity of Toronto Zoomed in

City of Toronto Zoomed inCity of Toronto Zoomed in

City of Toronto Zoomed inCity of Toronto Zoomed in

City of Toronto Zoomed inCity of Toronto Zoomed in

Data CatalogueData Catalogue

Raster DataRaster Data

TIF Format High Resolution TIF Format High Resolution Originals / Large Geographic AreaOriginals / Large Geographic Area

500 MB500 MB

500 MB 500 MB

Compressed JPEG / Smaller Compressed JPEG / Smaller Geographic AreaGeographic Area

10 MB / image

Data CatalogueData Catalogue