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Locate tweets on a map in real-time, re-render after filtering #10

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chbrown opened this issue Aug 23, 2013 · 0 comments

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chbrown commented Aug 23, 2013

Desired features:

Enable time-scrubbing
- With a slider, something like Ushahidi's?
- Maybe using crossfilter?
UI should allow drag-and-drop of tweets onto map as a way of enabling annotation with geolocation data (or adjust inferred location)

Lessons learned so far / ideas:

Heat map should be entirely client-side -- feedback from filtering and reloading should be immediate.
Canvas based heatmaps like pa7/heatmap.js and sunng87/heatcanvas are not fast enough.
CartoDB does nice heatmaps but they are not quickly filterable from the client-side, as far as I can tell.
- Also, CartoDB (like Mapbox) is not free.
WebGL seems to be the way to go.
- One implementation github.com/pyalot/webgl-heatmap
- Accompanying blog post

ghost assigned chbrown

tplagge closed this as completed

tplagge reopened this

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