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developmentseed / lonboard

A Python library for fast, interactive geospatial vector data visualization in Jupyter.
https://developmentseed.org/lonboard/latest/
MIT License
546 stars 28 forks source link

Google Colab crashes for large datasets #514

Open adamekcerv opened 3 months ago

adamekcerv commented 3 months ago

Hi,

I would like to use a 'lonboard' in Google Colab to visualize a GeoDataFrame ('gdf'). The code runs without any errors, but no output is displayed, even though it works on my local PC. What could be the issue?

kylebarron commented 3 months ago

Can you ensure that you don't have version 0.9.0 installed, which was broken and yanked?

Otherwise, everything is expected to work in Colab.

image

Can you look in your browser console for any errors? (e.g. command option I on a mac)

Melda-s commented 3 months ago

I'm facing a similar issue. No error but the map doesn't show. Here's a link to the colab notebook: https://colab.research.google.com/drive/1A-6eopcEH8XlXH2IVWzmitSjxALxe8iz?usp=sharing

The code I'm trying to run is from this Overture demo https://docs.overturemaps.org/blog/2024/05/16/land-cover/

kylebarron commented 2 months ago

I know when I tested Colab originally that there were issues with rendering large datasets. Can you see any map even one without any data? If so, it's likely issues on Colab's side with dropping the connection for large datasets

kylebarron commented 1 month ago

@Melda-s looking at your notebook, it also crashes for me during the cell that constructs the layer. It looks like that is the same issue I referenced before, where Colab crashes when trying to send large amounts of data outside of the Python session. At its core, this is a colab issue that's hard to work around. We could potentially export user settings for how big each data chunk should be from Python to the frontend, but that's an unideal workaround