There might be a reason to upgrade to rubygems 1.7.x, however if you have done so by misstake and find your console swamped by thousands of deprecation warnings: NOTE: Gem::Specification#default_executable= is deprecated with no replacement. It will be removed on or after 2011-10-01. and you’re crying desperately for help, then you might try the following very ugly hack, which you should revert at some point in time: First look where your rubygems are installed: Read on

Problem: I have a web site/page that I visit regularily which I want to annotate with my notes. More specifically, I was regularly searching through the Homegate real estate hub looking for a new home. It goes without saying that I was again and again forgetting which objects I had already looked at, which objects were really interesting and I should check out more closely. Therefore the need to annotate search results. Read on

Am Freitag dem 6. Mai, findet an der Hochschule für Technik Rapperswil das 2. deutschsprachige QGIS Anwendertreffen statt. Quantum GIS (oder kurz QGIS) ist ein benutzerfreundliches Open Source Desktop- und Server-GIS welches sich einer stark wachsenden Anwendergruppe erfreut. Sie finden Infos zu QGIS unter www.qgis.org Nach dem erfolgreichen ersten deutschsprachigen QGIS Anwendertreffen am 21.4.2010 in Bern findet das zweite deutschsprachige QGIS-Anwendertreffen an der HSR in Rapperswil statt. Alle aktuellen Infos zur Veranstaltung, wie auch zur Anmeldung, finden Sie auf der QGIS Seite. Read on

to visually sort images under Linux doesn’t seem to be a trivial task. I duckduckgo‘ed for a long time and had a look at various image and file managing applications before finding gthumb. And even there, you first need to create a “catalog” and within the catalog a “library” which will finally allow you to manually sort your images. All of which is not documented. Once you’ve sorted your images, you’d possibly want to export the sorting? Read on

Mittlerweile gibt es mehrere Open Source Alternativen zu Google Earth, wie z.B. Nasa World Wind Java SDK, ossimPlanet oder osgEarth. Dieser Vortrag soll eine Übersicht aktueller Open Source Virtual Globes bieten und einige Vorschläge zu erwünschten Funktionen liefern. Präsentation Demos: NASA World Wind Java SDK ossimPlanet gvSIG 3D osgEarth osgEarth QGIS plugin OSM-3D Read on