Presented by: Shahab Spring 2016

Introduction Data Analytics Plugins Learning Resources

Introduction Data Analytics Plugins Learning Resources

 Q(uantum)GIS is an open source Geographic Information System that supports most geospatial vector and raster file types and database formats.  Unlike many other open source GIS programs, QGIS is available for a number of operating systems, including both Windows and Mac OSX.  From: 4

 Install QGIS (the standalone version)   Download Data: City of Nanaimo, British Columbia, Canada  Dropbox Link (temporary) Dropbox Link 5

FeatureQGISArcGIS LicenseFree (open source)Free for 60 days Supported data types GUIThings are more accessible BrowsersQGIS BrowserArcCatalog Joining tables Coordinating Systems Online datasets Plugins, tools Geo statistical tools Remote Sensing Tools Workflow builders Symbology Labeling 6

7 FeatureQGISArcGIS 3D Animations Color coding maps Editing maps Fixing topological errors Geocoding

 Allows viewing and editing data  Shape Data  Raster Data  Web Services (Demo)   Web Services  Global Relief Model 8

Introduction Data Analytics Plugins Learning Resources

Data Vector SHPWFS Raster ECWWMS DEM Styling PointsPolylines Polygons Other CreateCSV Export Edit

Data Vector SHPWFS Raster ECWWMS DEM Styling PointsPolylines Polygons Other CreateCSV Export Edit

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 They are widely used for spatial analysis  Accuracy is very important  Scale problem  Silver problem  Undershoot and overshoot problems 13

Data Vector SHPWFS Raster ECWWMS DEM Styling PointsPolylines Polygons Other CreateCSV Export Edit

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 DEM (Digital Elevation Model)  Raster → 092…  Color-coded based on the elevation (in meters from the sea level) by default.  Rename to east coast and west coast  Set 0 to 313  Make it white to black  Extracting contours as shapes  Raster → Extraction → Contours  Set Elevation to 5 (meters)  Pick a line a see the elevation of the region!  Merge layers Vector → Data Management Tools → Merge Shapefiles to One 16

Data Vector SHPWFS Raster ECWWMS DEM Styling PointsPolylines Polygons Other CreateCSV Export Edit

 Data → Shape → Water → APPURTENANCES.shp  Rename to Fire Hydrants  Filter only Public Hydrants using the query builder  Use the Hydrant.svg to represent them  Drag and drop Pipes.shp 18

 Data → ROAD_CENTERLINES.shp  Make it dashed yellow  Add a solid black line (1mm) under it  Add Data → WATER → PIPES.shp  Make it blue  Filter main ‘Primary Supplies’ 19

 Data → Water → BUILDINGS.shp  DATA → WATER → PARCELS.shp  Data → Raster → 452D.ecw  Edit buildings  Border = No pen  Fill = Gray 20  Edit Parcels  Border: White  Fill: orange  Transparency = 50%

 DATA → WATER → PIPES.shp  Instead of single symbol, use Categorized  Choose the column ‘Type’  Click on classify  Remove the null ones!  Same color different diameters  Edit, Fields and Values, chosoe ‘Diameter’/100  If we want different colors:  Choose Graduate instead of single Symbol  Classify into 5 interval groups 21

 DATA → SHP → ROAD_CENTERLINES.shp  Show Labels  Label with: STREETNAME  Data → Raster → 452D.ecw  Add Buffer  Go to Placement: choose Curve, Above line  DATA → SHP → PARCELS.shp  Make it transparent  Add HOUSENUMBE(R)  Make it more complex! "HOUSENUMBE" + '\n' + "STREETNAME"  Make it invisible for small scales: Rendering → Check Scale-based visibility 22

Data Vector SHPWFS Raster ECWWMS DEM Styling PointsPolylines Polygons Other CreateCSV Export Edit

 Create new data  Export data: we want to save only supply lines!  DATA → WATER → PIPES.shp  Query builder: "TYPE" LIKE '%Supply‘  Right click → Save as ESRI Shapefile  Loading From CSV  Layer → Add Layer → Delimited Text File  DATA → CSV → incidents.csv, set x and y as lat and long, WSG 84  Check info  To edit data, either edit it from the original file or save at as a shape file 24  Edit data  DATA → PARCELS.shp  Click on edit  Change the nodes locations  Delete using the select tool  Add feature  Fields

Introduction Data Analytics Plugins Learning Resources

Analytics OverlayingHeatmapCentroids

Analytics OverlayingHeatmapCentroids

 Add zones from parcels to buildings  DATA → SHP → BUILDINGS.shp  DATA → SHP → PARCELS.shp  Vector → Data Management tools → Join Attributes by Location 28

Analytics OverlayingHeatmapCentroids

 Layer → Add Layer → Delimited Text File  DATA → CSV → incidents.csv, set x and y as lat and long, WSG 84  DATA → SHP → ROAD_CENTERLINES.shp 30

Analytics OverlayingHeatmapCentroids

 DATA → SHP → PARCELS.shp  Vector → Geometry Tools → Polygon Centroids  Zoom in over the island  Add house numbers  Move one label  Select label  Click on edit  Move using the Move Feature tool 32

Introduction Data Analytics Plugins Learning Resources

Plug-ins Open LayersGeoSearch

Plug-ins Open LayersGeoSearch

 DATA → SHP → ROAD_CENTERLINES.shp  Plugins → Manage and Install  OPENLAYERSPLUGIN  Web -> Open Layers -> OpenStreetMap  Web -> Open Layers -> Google Maps -> Google Hybrid 36

Plug-ins Open LayersGeoSearch

 DATA → SHP → ROAD_CENTERLINES.shp  DATA → SHP → Buildings.shp  Plugins → Manage and Install  GEPSEARCH  Look for nanimo city hall, rename  Look for Lios lane, nanimo  Distance  Route (right click to finish) 38

Introduction Data Analytics Plugins Learning Resources

 QGIS documentation:  Mastering QGIS Mastering QGIS  QGIS By Example QGIS By Example  Learning QGIS Learning QGIS  QGIS Tutorials and Tips QGIS Tutorials and Tips  QGIS Course on Lynda QGIS Course on Lynda 40