folium: HeatMap doesn't use weights
I spend quite some time tracking down this bug. I think it should be fixed or the limitation should be clearly stated in the docs. This is a major time waster and makes a bad impression on this otherwise great package.
This is a major bug coming for the upstream Leaflet.heat project.
- https://github.com/python-visualization/folium/issues/496
- https://github.com/Leaflet/Leaflet.heat/issues/43
- https://github.com/Leaflet/Leaflet.heat/issues/74
Problem description
The plugins.HeatMap states that the points used to create the heat map can
be weighted.
data (list of points of the form [lat, lng] or [lat, lng, weight])
However weights are simply ignored. This makes it useless for heatmaps that are based on a few points with different weights.
Expected Output
Weight should have impact. Or remove this option from the docs.
About this issue
- Original URL
- State: closed
- Created 4 years ago
- Comments: 23 (11 by maintainers)
You can install folium with pip from the master branch like this:
pip install git+https://github.com/python-visualization/folium.gitNote that you’re using v0.11.0 and we were talking about the master branch, which contains a fix for heatmaps and changes its behavior slightly. With the fix,
max_valis deprecated.Hi @ibayer , sorry to hear this bug caused you some issues. I opened a PR which applies a patch from the leaflet.heat repo. Can you perhaps help by testing the PR, see if it solves the issue for you?
Alternatively, if we don’t get a fix working, we should indeed update the documentation.