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rakshitadmar

There's a plugin called VimWiki that can help you with this.
Re:Creating Heatmap from Scratch in Python (2018) on Thursday April 18, 2019 @08:55AM (#19690612)
I have something of the sort. Give it later, lon and a value, it performs cubic interpolation and forms a heatmap. Some of the code is specific to my application but I'm sure you can reuse.

https://github.com/rraks/sigcatch

Open to contributions.