Dear Marco,

While most of GeoEco is platform-independent, certain parts are platform-dependent and have only been implemented for 32-bit Windows. In particular, the setup script (setup.py) is mainly designed to produce Windows binary installation packages (using distutils) and will probably require a lot of changes to get working on another platform. We would like to address this eventually but have not had the resources to do so yet.

If you are interested specifically in the front-detection algorithm and have some skill with Python and C++, it would probably not be too difficult to get it working on another platform. The main part of the algorithm is implemented in platform-independent C++ extension module, FrontsUtils.cpp. This module includes only python.h and numpy/arrayobject.h. The functions that it exports are called by the DetectEdgesInSingleImage() function in Fronts.py. That function is designed to run the algorithm on a numpy array representing an SST image; the values must be int8, uint8, int16, or uint16.

It might be difficult to get the entire Fronts.py working on another platform because it imports other GeoEco modules. Instead, assuming you have some experience writing Python packages, I would recommend extracting the DetectEdgesInSingleImage() function to your own Python file, and then stripping out or replacing code that is specific to those other GeoEco modules. For example, there are a lot of calls to GeoEco’s Logger class from the GeoEco.Logger module. Just remove these entirely or replace these with calls to Python’s built-in logging module. In those calls to the Logger, there is also a function called _ which is used for localization of the messages. If you did not remove the logging messages entirely, you would need to remove the _ function or define it to just return whatever was passed into it.

If trying to get DetectEdgesInSingleImage() working does not appeal to you, you could also just use it as an example—it is documented well—and write your own Python code from scratch. That way, you would only need to compile FrontsUtils.cpp as an extension module and everything else would be your own code.

Good luck, and feel free to contact me with additional questions.

Best regards,

Jason

Dear MGET Team,

we would like to install GeoEco Python module on an Ubuntu 8.0.4 machine (Python 2.5.2 already installed, together with additional modules like osgeo). We are interested in particular in using the front-detection algorithm.
Is there any recommended procedure for that ? or could we find the GeoEco python module source code, out of the installation package for Windows ?
Many thanks in advance for your advice
Marco Clerici