The Heat Map visualization in ActivityLog2 has been updated to handle large amounts of data, making it possible to show all 11 years worth of GPS points that I have, and still being able to show an interactive map, where the user can zoom and move the map...| alex-hhh.github.io
in which we explore how to write internal Racket data structures to disk and read them back, and use these features to improve load times for the GeoJSON data, so the program does not have to spend 20 seconds in the initialization step....| alex-hhh.github.io
in which we use GeoJSON data for timezone boundaries to determine the time zone for a given location, and learn a few things about the performance of Racket programs....| alex-hhh.github.io
The timezone-boundary-builder project publishes GeoJSON files with timezone boundaries based on OpenStreetMap data, and I though it would be an interesting project to load this data in Racket, build some map visualizations with it and explore some of the ...| alex-hhh.github.io