@christyheaton kicks us off at #pycascades2025 by talking about how to make hiking maps with #pyscript, #geopandas, and #streamlit
#pycascades #python

#geopandas https://www.youtube.com/watch?v=0mWgVVH_dos #Python #GIS #geodataframe

Geospatial Python - Full Course for Beginners with GeoPandas
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https://youtu.be/0mWgVVH_dos?si=KHenBnxdeStppvnH <-- shared video tutorial
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https://moderngis.xyz/courses/geopandas-free-certification/ <-- shared course files
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[sharing of this course should not – necessarily - be considered as an endorsement]
#GIS #spatial #mapping #tutorial #onlinelearning #free #training #python #geopandas #pandas #beginners #video #videotutorial #workflows #automation #spatialanalysis #spatialdata #DuckDB #leafmap #lonboard #certification

"R⁵py is a #Python library for rapid realistic routing on multimodal transport networks (walk, bike, public transport, and car). It provides a simple and friendly interface to R⁵, the Rapid Realistic Routing on Real-world and Reimagined networks, a routing engine developed by Conveyal. #r5py is inspired by r5r, a wrapper for R, and it is designed to interact with #GeoPandas #GeoDataFrames."

https://r5py.readthedocs.io/en/stable/index.html

via @waeiski

Would you please have any hint on how to set aliases to column names in GeoPackage layer using Python? (No, not using ArcGIS Python APIs.) #gischat #python #geopackage #geopandas

Quick glance at the new #Foursquare dataset with 100M places worldwide [1], based on do-me's data upload [2]. See the jupyter notebook here [3].

[1]: https://location.foursquare.com/resources/blog/products/foursquare-open-source-places-a-new-foundational-dataset-for-the-geospatial-community/
[2]: https://huggingface.co/datasets/do-me/foursquare_places_100M
[3]: https://code.ad.ioer.info/wip/snippets/html/2024-11-25_foursquare_parquet.html

#geopandas #geoparquet, #python #datascience #datashader #jupyter

day 24: #only_circular_shapes

Encircled Iceland Incircles.

The biggest circle that fits inside of Iceland (an "incircle") (in UTM), and the next biggest that doesn't overlap the first, and the next biggest and so on...

https://en.wikipedia.org/wiki/Incircle_and_excircles

method implemented similar to that of Garcia-Castellanos & Lombardo 2008 https://doi.org/10.1080/14702540801897809

colors are that of the Icelandic flag

coastline from Natural Earth. plotting with #matplotlib #shapely #cartopy #geopandas

Day 23: #Memory Lanes

or: the northwest seems closer.

had great fun doing this / got a bit carried away.

drew the roads (and some points of interest) from the corner of the world i grew up in. then paired the remembered locations with their actual positions to make some unnecessary figures.

#OpenStreetMap for reality. #matplotlib for plotting. #geopandas and #shapely for everything else.

slightly more detail, but not much more, here: https://tlohde.blog/2024/11/23/memory-lanes/

#GeoParquet in #QGIS – smaller & faster files for the win!

tldr; Tired of working with large CSV files? Give GeoParquet a try!

http://anitagraser.com/2024/11/23/geoparquet-in-qgis-smaller-faster-files-for-the-win/