On 18.10.2009, at 00:04, Søren Hauberg wrote: > Hi, > > Sorry 'bout the late reply... > > fre, 16 10 2009 kl. 14:39 +0200, skrev Lukas Reichlin: >> In order to overcome these drawbacks, I started development of a new >> control package. It's completely object-oriented and as Matlab- >> compatible as possible. What makes it unique is its "model >> abstraction >> layer", i. e. commands like append, connect, feedback, series, >> parallel, horzcat, vertcat, subsref,+, -, * and so on are written >> model-independently. They all rely on just three (!) basic commands >> for model manipulation which need to be implemented in ss, tf or zpk. > > This sounds great! I don't work in control, so I can't comment on your > work, though. I hope somebody else can help you test this. > >> At the moment, my package contains the basics for the handling of >> state-space and transfer function objects. Before I continue with >> zero/ >> pole/gain models and start porting higher-level user functions like >> "bode" or "step", I'd like to get some feedback in order to hammer >> out >> the basics. Therefore, I wish to publish my work as an "extra >> package" >> on the octave-forge server (under GPL 3, what else? :-). Luca >> Favatella (slackydeb), maintainer of the "old" control package, >> agreed >> to be the "new" package's maintainer. > > I don't have any objections to you creating a new package, but is > there > a reason why your work doesn't go directly into the current 'control' > package?
The reason is that they're not compatible, e.g. the "low-level" command ss for creating a state-space model exists in both packages, but the "old" ss creates a struct for storing the model data, while the "new" ss creates an instance (usage: sys = ss (A, B, C, D). Now there are "high-level" commands like bode that are expecting model data (usage: bode (sys)). Obviously, these functions need to be ported to the new format first, which means a lot of work. Therefore, gradually merging the packages won't work. IMHO the old control package should remain the "official" one until the new one is 100% ready. >> Could someone please create an >> empty package with the name "control-oo", "control-rewrite" or >> similar >> on the server? > > I've given you access to the Octave-Forge SVN, so you can do this > yourself :-) > > Søren Thanks, I hope I don't mess things up! Regards, Lukas ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ Octave-dev mailing list Octave-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/octave-dev
