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GeoJSON
glenrobertson edited this page Apr 2, 2012
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When showing maps at the USA national or even state views, we only need coordinate pairs like ##.ddd but the default GeoJSON latitude and longitude values are more like ##.ddddddddddddddddddd. By removing the extra precision, we can more than 1/2 the file size and make snappier web maps.
From migurski’s github:
https://github.com/migurski/LilJSON
Usage:
python liljson.py --precision 3 z4-labels.json > usa.json
Note: this pipes (the ">" symbol) the output of the liljson.py script into a new file (usa.json).
Sha Hwang has written a web application for viewing GeoJSON feeds on a map: here