py_gamma_user_guide

Python integration with the py_gamma module, Version of 06-June-2019

Documentation – User’s Guide

Python integration with the py_gamma module

Christophe Magnard

Gamma Remote Sensing, Worbstrasse 225, CH-3073 Gümligen, Switzerland

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TABLE OF CONTENTS

1 Introduction ........................................................................................................................ 3

2 Installation ........................................................................................................................... 3

3 py_gamma documentation ................................................................................................. 5

4 py_gamma module contents .............................................................................................. 5

5 Examples............................................................................................................................ 15

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1 INTRODUCTION

or PyCharm.

Using the wrapper:

• Binary images, point lists and data, parameter files, tab files, can be easily read, inspected, and

• Gamma Software program calls become Python function calls where variables can be used as

• Usage within an interactive Python environment permits function name search and automatic

• The documentation for each function can be easily accessed.

PYTHONPATH. This can be done in the .bashrc file by adding the following line:

or e.g. from within the Spyder interface (Tools -> PYTHONPATH manager)

Another possibility is to temporarily add the Gamma Software main directory path within an interactive

Python console or in a Python script as follows:

Once the path has been set, simply import the py_gamma module in your interactive Python console or

in your Python script, e.g.:

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On Windows 10, this can be done as follows:

• right click on your computer icon (may be called “This PC”) -> Properties -> Advanced system

• add MSYS64 environment variable with the path to MSYS2 main directory as value, e.g.:

• add GAMMA_LOCAL or MINGW64 environment variables, with the path to the main directory

version.

Python IDEs such as Spyder (available e.g. in Anaconda or WinPython) or PyCharm provide numerous

practical tools such as:

• Scroll and completion of function names

• An editor with live analysis of the code and error description

• Visualization of variables

• Command history

We highly recommend using one of these.