![Christophe Deschamps on Twitter: "[DATAVIZ] 8 Online Heat Map Generator Websites Free https://t.co/WvZhNwgmMt https://t.co/pOhd9dbmpO" / Twitter Christophe Deschamps on Twitter: "[DATAVIZ] 8 Online Heat Map Generator Websites Free https://t.co/WvZhNwgmMt https://t.co/pOhd9dbmpO" / Twitter](https://pbs.twimg.com/media/DpcNKFTXcAA-R7v.jpg)
Christophe Deschamps on Twitter: "[DATAVIZ] 8 Online Heat Map Generator Websites Free https://t.co/WvZhNwgmMt https://t.co/pOhd9dbmpO" / Twitter
![coordinate system - Adding circle polygon to folium map (using OGR and Python) creates an oval - why? - Geographic Information Systems Stack Exchange coordinate system - Adding circle polygon to folium map (using OGR and Python) creates an oval - why? - Geographic Information Systems Stack Exchange](https://i.stack.imgur.com/ATIR6.jpg)
coordinate system - Adding circle polygon to folium map (using OGR and Python) creates an oval - why? - Geographic Information Systems Stack Exchange
![openstreetmap - Online service that allows drawing a circle on top of a map? - Geographic Information Systems Stack Exchange openstreetmap - Online service that allows drawing a circle on top of a map? - Geographic Information Systems Stack Exchange](https://i.stack.imgur.com/U4qXQ.png)