A Python script for generating high-quality heatmaps based on any coordinate data (GPS tracks, eye tracking, etc). It is useful as a command line script or a Python module, inputs can be a list of points or a GPX tracklog, renders GPX tracks as line segments (rather than disconnected points), can generate animations using FFmpeg​ showing the accumulation of your data and many more options. It is released under the AGPL, so you’re free to improve it and to share your version.