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Module for creation and handling of discrete global grids

Project description

This is a package for creation and handling of Discrete Global Grids or Point collections. We hope extend the interface also to projected grids(images) in the future.


If you use the software in a publication then please cite it using the Zenodo DOI. Be aware that this badge links to the latest package version.

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This package should be installable through pip:

pip install pygeogrids


For now the main features are:

  • Creation of grids

  • Nearest neighbor search

  • conversion of grid piont indices to lat, lon

  • Storage of grids and loading grids from CF-compatible netCDF files

  • Calculation of lookup tables between grids

  • Support for different Geodetic Datums using pyproj.


We are happy if you want to contribute. Please raise an issue explaining what is missing or if you find a bug. We will also gladly accept pull requests against our master branch for new features or bug fixes.

Development setup

For Development we recommend a conda environment. You can create one including test dependencies and debugger by running conda env create -f environment.yml. This will create a new pygeogrids environment which you can activate by using source activate pygeogrids.


If you want to contribute please follow these steps:

  • Fork the pygeogrids repository to your account

  • Clone the repository

  • make a new feature branch from the pygeogrids master branch

  • Add your feature

  • Please include tests for your contributions in one of the test directories. We use py.test so a simple function called test_my_feature is enough

  • submit a pull request to our master branch


This project has been set up using PyScaffold 3.2.3. For details and usage information on PyScaffold see

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