While trying to bring my setup to package KDevelop standalone for Linux into a shape where it has a nonzero probability of me picking it up again in half a year and actually understanding how to use it, I created a docker base image which I think might be useful to other people trying to package Linux software as well. It is based on CentOS 6.8 and includes Qt 5.7 […]
On Sunday, this year’s KDE sprint in Randa, Switzerland came to an end and I am now back home. It was a productive and fun week, as always when meeting the other KDE folks. I spent a lot of time on polishing things and fixing small issues mostly in KDevelop, such as: reduce flickering of the completion widget in kdevelop fix various cases where KDevelop’s navigation widget (see above) would […]
I am currently at the KDE sprint in Randa, Switzerland. There are about 40 nice people here, working on making KDE software awesome. This year’s focus is on deploying our software more nicely — on Windows and OS X, but on Linux as well. Especially for user-faced applications like KDevelop, it really makes a big difference whether you use today’s version, or the one from two years ago. Many people […]
Over the years I spent a lot of time writing simulation or data processing code for some kind of data. While some data sets are very small (just a few hundred values) it not uncommon today to have a few dozen, a few hundred or even a few thousand megabytes of data to process in some way. In fact, Python is in many cases well capable of processing such data […]
I spent the last two or three days playing around with KDE on Windows, with the aim of getting my Python language plugin for KDevelop to run there. In the end, it wasn’t that hard to get this to work — not as hard as I would have expected it to be, anyways. Several things needed to be fixed in kdev-python, the build system required a bit of tickling, but […]
The last few days, we had a joint kate and KDevelop sprint in Berlin. I finally found the time to fix up the Python language support plugin for KDevelop, which was in a quite bad shape in the last few months. Most importantly, the 1.7-py3 branch now supports Python 3.4.3, and the master branch supports KF5 (this mostly thanks to Laurent, who did most of the porting) and Python 3.5, […]
During the last days, I had the chance to record some radio astronomy data with my 1.4 GHz telescope. The receiver system is more or less unchanged compared to what I described in the last post, except that I have pretty versions of the amplifier and filter boards now: For the measurements I performed until now, I only used a small biquad antenna without parabolic reflector. The collecting area is […]
Much has happened since my last status report on my attempts to observe the galactic hydrogen emission at the famous 1420.4 MHz hyperfine structure line. Now, the new setup is finally proven to be basically working, and in this post I want to describe some of the changes I did. New data acquisition module Most importantly, I replaced the spectrum analyzer by a self-made data acquisition unit which is basically […]
Recently I spent some time to port and clean up the Snippets plugin and the underlying template interface for Kate 5. It’s now fully working again and more powerful than ever. The template code was originally written by Joseph Wenniger and most of what I show here is still working like originally implemented by him. Still, there were some improvements I would like to show; also, I’m sure many readers […]
With a reasonably simple setup, I finally succeeded in detecting the 1420.4 MHz galactic hydrogen hyperfine structure line: One of the first successful measurements. The little bulge in the center of the image is the hydrogen line. The sharp, high peaks are man-made interference and not part of the astronomical signal. The yellow line is with the telescope pointed towards the milky way, the pink line is for a different […]