HeatMapWithTime: one time slider across multiple data layers

Please add a code sample or a nbviewer link, copy-pastable if possible

heatmap = folium.Map(location=[0, 0], zoom_start=1.5)
HeatMapWithTime(data_1,index=index,overlay=False).add_to(heatmap)
HeatMapWithTime(data_2,index=index,overlay=False).add_to(heatmap)

Problem description

Since I am using the same index variable with default time slider parameters for both data layers, I expect the map to only produce one time slider. However, that is not the case as it adds extra time slider for each layer. This becomes an issue when you have let’s say 10 different data layers and 10 identical time sliders on the side of your map.

Expected Output

If index variable and time slider parameters are set to be the same across different data layers, the map should only produce one time slider.

Output of folium.__version__

0.7.0

Update

I just found multiple layer example with one time slider using TimestampedWmsTileLayers on nbviewer. How can this be re-created using HeatMapWithTime??

[kjarus1]

Hi, apologies for the late reply but I just wanted to make sure that everything is tested and the code works properly before I write an update.

For my heatmap purposes the code published by @Conengmo works like a charm using this type of set-up:

folium.plugins.HeatMapWithTime(data,overlay=False,name='data',index=index,min_opacity=0.05,radius=20,min_speed=0.1,speed_step=0.1,max_speed=1,max_opacity=1).add_to(heatmap)
HeatMapWithTimeAdditional(data_1,overlay=False,name='data1',min_opacity=0.05,radius=20,max_opacity=1).add_to(heatmap)
HeatMapWithTimeAdditional(data_2,overlay=False,name='data2',min_opacity=0.05,radius=20,max_opacity=1).add_to(heatmap)

I hope this will help other people seeking for similar outcome. Thank you again @Conengmo

[neha845]

I was facing a similar issue and tried to use the code. However when using the HeaMapWithTimeAdditional my Map tile dissapears. Could some one suggest solution?

May be map is zooming more than max_zoom limit of the tile.