Run 01_leafmap_intro.ipynb on google colab nothing is plotted

[dustming]

Environment Information

• leafmap version:
• Python version:
• Operating System:

Description

Describe what you were trying to get done. Tell us what happened, what went wrong, and what you expected to happen.

What I Did

Run 01_leafmap_intro.ipynb on google colab nothing is plotted

[giswqs]

see https://github.com/giswqs/geemap/issues/1132#issuecomment-1179673334

[dustming]

see giswqs/geemap#1132 (comment)

Got it, Just saw the comment and it works~!!! This is amazing work!!!

I tried to use leafmap to plot a huge polygon dataset in google colab. it ended without error but nothing plotted.

Are you interested in test this large polygon dataset?

[dustming]

Here is the link for the large dataset.

I got an unknown problem when I tried to plot "finalcat_info.shp"

The same code works for a small watershed as shown in the following:

Thanks for all your amazing work!!!

[giswqs]

ipyleaflet can only handle relatively small datasets. For large datasets, you might need to host it on a server and access it through web services.

[dustming]

ipyleaflet can only handle relatively small datasets. For large datasets, you might need to host it on a server and access it through web services.

Hi Prof Wu, I notice that using a for loop to plot each polygon can solve this problem.

[giswqs]

Yes, you can certainly use a for-loop, but the map will eventually become non-responsive when adding too much data to the map.