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Web-Mapping, Web-GIS and Visualization of Geospatial Data

Ghent Centre for Digital Humanities. Web-Mapping, Web-GIS and Visualization of Geospatial Data. “Introducing Research Practices and Tools for Digital Humanities” 1-2 November 2018, Trondheim. Visualisation of geospatial data. What is Web-Mapping?. T ype of d igital mapping

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Web-Mapping, Web-GIS and Visualization of Geospatial Data

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  1. Ghent Centre for Digital Humanities Web-Mapping, Web-GIS and Visualization of Geospatial Data “Introducing Research Practices and Tools for Digital Humanities” 1-2 November 2018, Trondheim

  2. Visualisation of geospatial data

  3. What is Web-Mapping? • Type of digital mapping • Mapsthat are online • Mapsthatallow users interactwiththemandcustomisethem-- a processthroughwhichthe map user becomesthemap-maker (web mapping 2.0 )

  4. Whatcanhumanitiesresearchersuse Web Mappingfor?

  5. The workshop on web mappingandgeovisualisationthisafternoon • Geojsongeospatial data format • Javascript librariersthat serve web mappingand web GIS – Mapbox • ArcGIS online • OpenStreetMap (OSM) • Geovisualisationwith R

  6. 1) GEOJSON: an open standard geospatial data format for online mapping • Youcancreate data in GeoJSON format using GIS software such as ArcGIS& QGIS • … or web GIS tools like Carto.com (elements of whichyoucanalsouse in yourownapplications) • …

  7. 2) Javascript Libraries • Theytypicallyworkvery well withGeoJSON • Webmappinglibraries: Leaflet, Mapbox, OpenLayers, Dojo (ArcGIS API forJavaScript), Google Maps API

  8. Mapbox • Examples of someapplicationswhereMapbox is used: Financial Times Le Monde USA Today – electionresults

  9. PotenzaValley Survey - Arches

  10. Without Mapbox or similar(javascript) cartographiclibraries… • Therewouldbe map tile providers... • thatwould charge youforcreatingcustom map tilesforyour mobile and online applications • thatwould charge youfor storing thosetiles in their servers (terrabytesandterrabytes of storage spaceyouwouldneed) • …andyouwould have towrite code in javascript forhours (or paysomebodytowrite codes in javascript forhours) tointeractwithyourtiles (i.e. in order to zoom in and out of your map, making things pop up whenyou click on the map, add markers andcustompins etc.)

  11. 3) ArcGISOnline • A web-based GIS • Create, manage and analyse spatial data online • Data layers, mapsand apps createdbyan online global community of users (e.g. individuals, municipalities, governmentorganisations, private organisations) • Make online mapsand share them

  12. 4) OpenStreetMap - web mapping 2.0 … “the free wiki world map”

  13. 5) GeovisualisationwithRorUsing R as GIS Is GIS software dead?

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