Orange is Open Source

Orange is open source and free software. You are free to use it and you are free to redistribute it and/or modify it under the terms of the GNU General Public License.

By being open source it allows you to see how it works, how are its algorithms implemented. It allows you to understand and learn from it. And build upon it new things.


Orange development is not just public, it is open to you, to community. You can browse the source code, open and follow development through tickets, contribute patches or help with documentation. Join!

What's in the Air?

Orange Canvas applied to x-ray optics 26/Aug/2014

Orange Canvas is being appropriated by guys who would like to use it as graphical environment for simulating x-ray optics.

Manuel Sanchez del Rio, from The European Synchrotron Facility in Grenoble, France, and Luca Rebuffi from Elletra Sincrotrone, Trieste, Italy, were looking for a tool that would help them integrate the various tools for x-ray optics simulations, like the popular SHADOW and SRW. They discovered that the data workflow paradigm, like the one used in Orange Canvas, fits their needs perfectly. They took Orange, and replaced the existing widgets with new widgets that represent sources of photons (bending magnets, in the case of ESRF), various optical elements, like lenses and mirrors, and detectors. The channels between the widgets no longer pass data tables, like in the standard Orange, but rays of photons. How cool is this?

The result is a system in which the user can arrange the elements in a system that resembles the actual physical system, and then run the simulations using the most powerful tools available in x-ray optics.

The tool prototype has been presented at the SPIE Optics + Photonic 2014 in San Diego, the largest meeting of its kind.

We're really excited about this novel use of Orange Canvas.


If you want to read more about what's new in Orange, its life and its community, check out our blog.

Help! I Need Somebody!

Everybody needs sometimes help. For Orange, the place place for help is our forum. You can post there your questions, problems, suggestions, or ideas. Or browse/search existing posts. And participate in them!