Archive for March, 2007

Journaler – a bloggers friend

March 29, 2007

This time I want to write about Journaler, a nice tool for blogging. It’s very easy to handle and has many nice features for writing. This is my first blog with Journaler and in the future I will give you now and then an update about my experiences with it.

The configuration for blogging is quite simple. Under Journaler -> Preferences -> Blogging  add a MetaWeblog API account.
The Blog’s Location is http://<your blog> and the XML-RPC is http://<your blog> and of course you should know your login name and your password.

For now I can say. It exists, is easy to use and its full of features I want to try out. I also hope, that it will increase my blogging rate to bring you more cool information, about mac and free software.


DIY altoids camera

March 22, 2007

This isn’t particularly mac, but it’s to good to not post it: who needs fancy digital cameras? Build your own pinhole camera out of an altoids-box. One day I will try this with an old CCD chip + circuitry, but until then, this will do the job.

Xee – easy image browsing for macs

March 22, 2007

Xee is a super slim image browser very much like preview, but: once you have opened an image, you can easily browse through the entire directory, just by your scroll-wheel. Remember irfanview back when you used windows? It’s exactly like it (minus some functionality but the easy browsing makes up for that)

via lifehacker


March 21, 2007

Platypus is a really nice tool, to start command line tools or scripts from the GUI.

I show here a quick and dirty hack to demonstrate the power.

platypus - mplayer starter

You can install mplayer and python from the macports.

sudo port install mplayer python24

To use the commandline mplayer, you have also to install the X11 bundle, from your MacOSX Install DVD. It’s not installed out of the box.

The source code for the python mplayer start script (e.g.

#!/usr/bin/env python

import sys
import os

filename = sys.argv[2]
os.system(“/opt/local/bin/mplayer -framedrop -fs \”%s\”” % filename)

To start it, fire up your Quicksilver and select a movie file and use open with the mplayer script. You can also say your finder to open the film of your choice with the mplayer start script. The easiest way is simply to drop a film on the script.

Here you will find some other useful platypus scripts.

If you have a better solution, please comment it and I will update this.

have fun

pixelfreak … pixelart fonts for you

March 15, 2007

Maybe this one is just for real geeks. Anyway, for some time now I am a bit of a fan of pixelart, and when your are a fan and have internet access, but really no time at all, then … you easily come across several this site: pixelfreak. Check out the artwork and download the free bitmap fonts. I do like PF Neutron in particular … together with Geektool … think of the possibilities.

I am a blogger

March 15, 2007

Finally I am arrived in Web 2.0 – Maybe.

Yesterday Georg asked me to join this blog and I must say that I am very honored to write with such excellent Mac Users.

In the future I will hopefully write here some things about Open Source progams for the mac.

Briefly to descibe my background I have to say that I originally come from Dos then wandering to Nextstep then I had a short intermezzo with windows traversing to Linux and at last I made a sudden curve to MacOSX.

One of my favite things is Open Source Software. For programming I prefer Python and as for my work I like Zope. Maybe I drop here and there a line about it.

So at the end of my first blog I have to say to You. Thanks for reading and get a mac, macports, mplayer, iterm, quicksilver and eclipse. It will make your life easier – maybe.

Why is my hard drive full again?

March 15, 2007

Ever wondered where you lost those GBs of hard drive space? Perhaps some old test data or a quick matlab snapshot lying around you think? Definitely – but where?

This is where WhatSize comes in – this little freeware app will scan your drive (or a folder you select) and show you the aggregated sizes of all files for each directory!

GeekTool, Macs stats on the desktop

March 14, 2007

See for yourself, I think I like it, eventhough its pretty distracting, but who can say no to something that lets your desktop look a bit more like a cockpit.

GeekTool via Lifehacker

What it does: it sits in your preference pane, and displays various information right on your desktop.

Public DICOM data

March 14, 2007

Since we are at it: at

there is a number of interesting medical 2D to 5D data sets, that might be handy when doing evaluations of your algorithms.

Opensource DICOM viewer for Mac: OsiriX

March 14, 2007

OsiriX is an open source DICOM viewer for the mac. It has everything (as in ‘everything’): nice management tools for dealing with larger sets of images, 2D, 3D and even 4D visualization tools, it can do volume rendering, MIP, surface rendering, you can adjust opacity maps, colormaps, export, import ….

I still have to find out what it can’t do, that I would like it to do … wait, it would be nice, if it could export volumes directly to .mat files, correctly de-destorted, but thats dreaming maybe. Anyway, the rendering is not lightening fast, but I suspect, that it might be my mac. Since matlab just crashes when I read in the data in full resolution, I’ll say 2min loading time before you start to fly through the volume is sort of okish.

try it out: OsiriX was updated today to Ver. 2.7.1 (read the change log, and you will start to droll …)
The last time I loved it, was when Matlab would not read the dicom headers of 500 CT slices. I needed the header information to sort them correctly to import the volumes – slice by slice – into Matlab. OsiriX read them, and exported the individual volumes/slices neatly and in the correct order to a directory.