This repository collects a computational pipeline to mine geospatial data through Google Earth Engine in Grasshopper 3D, via its most recent Hops component. To read more about case studies and applications refer to I.Neri, Expanding Digital Design Workflows with Geospatial Analytics

• Rhinoceros 7 (Win) & Hops (tested with 0.16)
• Python 3 (tested with 3.8.0)

1. clone the repository

• open a Terminal (mac) or run PowerShell (win)
• change directory to your desidered path example: cd /Users/xxx/Desktop/
• git clone https://github.com/neriiacopo/GeoMining-EE-Hops.git

2. virtual environment

• enter the repository cd GeoMining-EE-Hops
• create the virtual environment python -m venv env_GeoMining
• win: .\env_GeoMining\Scripts\activate

3. install dependencies

• pip install -r requirements.txt

• Change directory in the Terminal/PowerShell to repository folder
• Activate your virtual environment (as explained above)
• Connect Grasshopper to Earth Engine via Hops python import_ee.py
• On the first run, follow the instructions in the console to authenticate your machine to Google Earth Engine

• if .\env_GeoMining\Scripts\activate fails to run in Windows

  • make sure you run Powershell as Administrator
  • Set-ExecutionPolicy RemoteSigned
  • y
  • .\env_GeoMining\Scripts\activate

• if any of the Python scripts fails to run

  • check if you Python2 installed as well and make sure to call Python3
  • python3 -m venv env_GeoMining
  • python3 import_ee.py

• if import_ee.py fails due to Authentication

  • make sure to have a registered account to GEE
  • go at this link and fill up the form

• if import_ee.py fails due to AttributeError: module 'collections' has no attribute 'Callable'

  • make sure to run Python < 3.10

Neri, Iacopo. 2023. Expanding Digital Design Workflows with Geospatial Analytics: Linking Grasshopper3D with Google Earth Engine. DE: Wichmann Verlag. https://doi.org/10.14627/537740047.