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Graphs in space
A guide to visualizing geospatial networks
Dan Williams
In this talk
¡ñ Visualizing data as a graph
¡ñ Visualizing geospatial data as a graph
Bags of nodes and edges
Layouts
A good layout puts nodes in the best possible location on the screen
Layouts
Handling huge amounts of data
Styling
Interaction
Interaction
¡°Hey, can we put that on a map?¡±
The problem with maps
? Layouts?
? Missing data?
? Interaction?
Graphs in space: a guide to visualizing geospatial networks
The problem with maps
? Layouts?
? Missing data?
? Interaction?
So¡­ why was this a good idea?
Interactions
to the rescue
GIS tools
Layers, overlays
and geofencing
Graph
visualization
tools
Filtering and
foregrounding
Handling missing geospatial data
Handling missing geospatial data
Handling missing geospatial data
Handling missing geospatial data
Using the right map
Using the right map
Using the right map
Lessons
Don¡¯t let a requirement for a map
view ruin a good visualization!
? Use interactions whenever you can
? Choose the right data model
? Choose the right map
Thank you
dan@keylines.com

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