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-2 votes
1 answer
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Trajectory density map or line density map

Data: ships AIS trajectory Data with longitude and latitude. (that data is a CSV file with several columns:id,time,lon,lat,etc.)// I transform the point to line, every line is a ship trajectory. Now I ...
Zhenyun Sun's user avatar
39 votes
9 answers
24k views

Creating polyline-based "heatmap" from GPS tracks?

This winter I am planning to track my downhill skiing/snowboarding using a GPS. Most of my riding will occur at the same resort. I would like to be able to create a sort of "heatmap" that shows the ...
RyanKDalton's user avatar
  • 23.2k