LiDAR, acronym for Light Detection and Ranging is a remote sensing technique to capture precise elevation including any vegetation or buildings on the earth’s surface. Over from the Lidar News blog is a short video from the Department of Geosciences at Idaho State University, introducing the principle of LiDAR and its application in elevation modeling of Snake River, Swan Valley in Idaho.
With all the rave reviews that Ubuntu 10.04 Lucid Lynx has been getting over the past couple of months, I couldn’t help myself upgrading and checking out the exciting new features and the enhanced interface, which I think was a much needed overhaul for the best desktop Linux OS.
A new version meant fresh installation of all the open source GIS goodies starting with QGIS. The latest version 1.4.0-Enceladus for Lucid is already available in the Launchpad UbuntuGIS repository and with a new command (add-apt-repository) for updating /etc/apt/sources.list with locations of repositories, the installation is simple and straightforward.
Bring up the terminal and issue the following commands.
Add the repository using:
sudo add-apt-repository ppa:ubuntugis/ubuntugis-unstable
Make apt aware of the new repository:
sudo apt-get update
Install QGIS
sudo apt-get install qgis
Once the installation is done, open QGIS from Applications -> Science -> Quantum GIS
