Points of Interest

In the last posting I mentioned that I made the routes in MoNav more persistent:

As a consequence, I’ve just written some code that detects whether the vehicle is still “on track”. The route only gets recalculated in case the vehicle left it for more than x meters. This makes the route much more persistent and will cause far less headache than the previous approach.

Since the GPS position is always a bit inaccurate, it will almost never be exactly on the computed route. Instead, it will aberrate a bit from it. What you want to achieve is to detect whether the current position still is either near the route, e.g. left or right of it, no more than x meters away and still in direction to the planned target, or in the opposite direction.

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Voker Weber concludes that it’s better to wait for the N900′s successor, except »you really want a computer that is also a phone«. A less surprising conclusion. That’s what the N900 is. And that’s how Nokia advertise the device.

Korg Z1 - Parameters of the Bowed String Model

I’m currently reading the master thesis of Henri Hagenow (2001). If you are capable of reading german and interested in that matter, it’s a very interesting read (attention: some maths ahead :) ). It gives me a much better understanding what happens inside my beloved Korg Z1 synthesizer.

In the next live, I’ll become a physicist and write cool audio software.

If you haven’t noticed yet, a workshop about mapping and using public transport data will be held on Sat, 2009-05-16 at Scheffelstraße 17a, Karlsruhe, Germany. Anyone interested is invited to drop by, though “registration” is appreciated.

Finally I run a blog. I started one ages ago, but I never felt comfortable about commiting data to a blog service outside my sphere of influence. But as my (well elaborated and well maintained) web pages (including frames, which means that those really were out of date) became more and more dated, I really needed a replacement. So here it is (drumroll): Yet another useless, though important, while innocent blog about stuff that matters – IT, free software, openstreetmap, gadgets, synthesizers, and anything else.