1. Developer’s Guide

This guide is intended to ease the development of additional readers, writers, or other components to the polar2grid package.

If you would like to contribute to either Polar2Grid or the Pytroll Satpy package or have any questions about the collaboration please contact the CSPP/Polar2Grid team.

Code repository: https://github.com/ssec/polar2grid

Developer’s Guide Components:

• 1.1. Development Environment
• 1.2. Software Bundle
• 1.3. JSON and Binary Input
• 1.4. Adding Readers
• 1.5. Python API

1.6. Prerequisites

These polar2grid topics should be understood to get the most out of this guide:

• The general design of Polar2Grid

• The responsibilities of a reader

• The responsibilities of a writer

• Package hierarchy and dependencies

A developer should be familiar with these concepts to develop a new component for polar2grid:

• python and numpy programming

• remapping/regridding satellite imagery swaths (including types of projections)

• python packaging, specifically distribute (setuptools)

• git source code management system and the ‘forking’ and ‘pull request’ features of http://github.com

• Xarray and dask programming and how it is used by the Satpy library