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Interactive bubble chart

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Interactive bubble chart
The graphic shows IED attacks on civilians, coalition and Afghan troops during the Afghanistan conflict. The interactive features enable analysis of change in casualties over time while the bubble map captures size location and category of casualty.
Visual types
Level of expertise
Source:
Guardian Datablog
http://www.guardian.co.uk/world/datablog/interactive/2010/jul/26/ied-afghanistan-war-logs
Interactive features
The slider on the bottom allows the user to easily visualise the change over the years. It is possible to navigate around the map by dragging the cursor around the map and to zoom in and out using the bar on the top right hand corner.
Benefits & pitfalls to avoid
  • When using colours to portray data values or types, ensure that the colors used are accessible to all users. Online tools such as ColorBrewer (www.colorbrewer.org) can help identify issues with colours used.
Create your own
  • Bubble maps can be created in a range of desktop GIS applications such as MapInfo and ArcGIS.