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WmsTileLayer does not recognise transparent parameter

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
58/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Quiet
Tech stack
python

Research direction

Start at folium.raster_layers.WmsTileLayer and reproduce the NASA WMS example in a Jupyter Notebook. Check how the transparent parameter is passed to the WMS request, then verify that the black parts render transparently with the provided layer configuration.

Written by the indexing model from the issue text.

Description

Describe the bug
WmsTileLayer is not recognising transparent=True parameter when using NASA WMS service.

To Reproduce

m = folium.Map(tiles="cartodbpositron")
wms_url = "https://gibs.earthdata.nasa.gov/wms/epsg4326/best/wms.cgi" 
wms = folium.raster_layers.WmsTileLayer(url=wms_url, layers="MODIS_Aqua_CorrectedReflectance_TrueColor", transparent=True,
fmt="image/png", name="Corrected Reflectance", 
styles="default", time="2023-09-22", overlay=True, show=True)
wms.add_to(m)
m

Expected behavior
I expect the black parts to be transparent

Environment (please complete the following information):

  • Jupyter Notebook
  • Python 3.9
  • folium latest version

Possible solutions
I already tried to include that parameter on kwargs, change True to "True", "true" and "True", but does not work.

Dominant language
Python
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Merged PRs (30d)
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