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Presentation from the Data Swap conference at Northeastern University on Oct 17th, 2013. Gives an overview of the Power of Maps, a project using geodata, and a quick tour of mapping technologies on the web.
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News GeographyCatherine D’Ignazio
The MIT Center for Civic [email protected]
First
Maps seduce us with
• Facticity• Their complexity and claim to completeness• Their visuality and our desire to see the “whole world”
Theatrum Orbis Terrarum by Abraham Ortelius, 1570
Hand-held Subway by Nina Katchadourian, 1996
As data designers you can use that seductive power of the map not just to describe the world but to reimagine the world
Targets by Joyce Kozloff, 2000
Silent London by Simon Elvins, 2005
Political/Hydrological by Lauren Rosenthal, 2006
Pumpkin Map by Denis Wood
The upside-down Hobo-Dyer Equal Area Projection
Mapping the GlobeCatherine D’Ignazio, Research AssistantMIT Center for Civic Media
Mapping the Globe
✦ Is news coverage distributed equally in Greater Boston?✦ What factors explain the unequal distribution of attention?✦ Beyond quantitative measures of media attention how can
we assess qualitative measures?
globe.mediameter.org
globe.mediameter.org
globe.mediameter.org
globe.mediameter.org
globe.mediameter.org
globe.mediameter.org
mediacloud.org
Next Steps • Global
• Comparative
• Integrated with MediaCloud
11"
Q. Can a computer tell
where this article is about?!!!A. 70-90% Yes!!
11"
Q. Can a computer tell
where this article is about?!!!A. 70-90% Yes!!
Geoparsing the News 101
Q. Can a computer tell where this text is about?
A. Yes! With 85% accuracy.
Geoparsing the News 102
Stanford NER parser
CLAVIN
Civic sauce
News Article
Geolocated article
Lightning Tour of Map Tech
Do you just need to make an image?
• Wikimedia for shape files + Adobe Illustrator for editing
• Use an .SVG file for easy styling with CSS
Do you need to do spatial analysis?
• ArcGIS by ESRI
• QGIS for open source GIS
• Then Adobe Illustrator or Photoshop for laying out the image
• CartoDB for GIS in the browser
Do you want to make an interactive web map?
• Google Maps API
• LeafletJS
• Modest Maps
• OpenLayers
• D3.js
Do you need a particular projection?
Do you need to zoom?
• Use a tile-based system like:
• Google Maps API
• LeafletJS
Do you want really awesome map tiles?
Check out the custom ones from Stamen Design
Do you want fine-grained control over styles & colors?
• MapBox/LeafletJS/TileMill - CartoCSS language
• Google Maps API has the “StyledMapsWizard”
Do you want to be able to print your map?
• D3.js
• Base your map on an SVG file & style with CSS
• Or just make it a static image
Do you need to show custom shapes?
• GIS shapefiles -> KML -> GoogleMaps
• GIS shapefiles -> GDAL/OGR -> GeoJSON -> GoogleMaps/LeafletJS
• GIS shapefiles -> GDAL/OGR -> GeoJSON -> D3 -> TopoJSON -> D3.js
Do you want to show time?
• D3 transitions
• CartoDB
• http://www.theguardian.com/news/datablog/interactive/2012/oct/01/first-world-war-royal-navy-ships-mapped