New Projects - Fresh from the Labs
This is definitely one of the most original and niche projects I've come across—and those two qualities are almost bound to get projects included in this section! gipfel has a unique application for mountain images and plotting. According to the Web site:
gipfel helps to find the names of mountains or points of interest on a picture. It uses a database containing names and GPS data. With the given viewpoint (the point from which the picture was taken) and two known mountains on the picture, gipfel can compute all parameters needed to compute the positions of other mountains on the picture. gipfel can also generate (stitch) panorama images.
Installation
A source tarball is available on the Web site, and trawling around the Net, I found a package from the ancient wonderland of Debian. But, the package is just as old and beardy as its parent OS. Installing gipfel's source is a pretty basic process, so I went with the tarball. Once the contents are extracted and you have a terminal open in the new directory, it needs only the usual:
$ ./configure $ make
And, as sudo or root:
# make install
However, like most niche projects, it does have a number of slightly obscure requirements that probably aren't installed on your system (the configure script will inform you). The Web site gives the following requirements:
UNIX-like system (for example, Linux, *BSD)
fltk-1.1
gsl (GNU Scientific Library)
libtiff
I found I needed to install fltk-1.1-dev and libgsl0-dev to get past ./configure (you probably need the -dev package for libtiff installed too, but I already had that installed from a previous project). Once compilation has finished and the install script has done its thing, you can start the program with:
$ gipfel
Usage
Once you're inside, the first thing you'll need to do is load a picture of mountains (and a word of warning, it only accepts .jpg files, so convert whatever you have if it isn't already a .jpg). Once the image is loaded, you either can choose a viewpoint from a predefined set of locations, such as Everest Base Camp and so on, or enter the coordinates manually. However, I couldn't wrap my head around the interface for manual entry, and as Johannes Hofmann says on his own page:
...gipfel also can be used to play around with the parameters manually. But be warned: it is pretty difficult to find the right parameters for a given picture manually. You can think of gipfel as a georeferencing software for arbitrary images (not only satellite images or maps).
As a result, Johannes recommends the Web site www.alpin-koordinaten.de as a great place for getting GPS locations, but bear in mind that the site is in German, und mein Deutsch ist nicht so gut, so you may need to run a Web translator.
If you're lucky enough to get a range of reference points appearing on your image, you can start to manipulate where they land on your picture according to perspective, as overwhelming chance dictates that the other mountain peaks won't line up immediately and, therefore, will require tweaking.
If you look at the controls, such as the compass bearing, focal length, tilt and so on, these will start to move the reference points around while still connecting them as a body of points. Provided you have the right coordinates for your point of view, the reference points should line up, along with information on all the other peaks with it (which is really what the project is for in the first place).
gipfel also has an image stitching mode, which allows you to generate panoramic images from multiple images that have been referenced with gipfel. As my attempts with gipfel didn't turn out so well, I include a shot of Johannes' stunning results achieved from Lempersberg to Zugspitze in the Bavarian Alps, as well as one of the epic panoramic shots as shown on the Web site. Although this project is still a bit unwieldy, it is still in development, and you have to hand it to gipfel, it is certainly original.
John Knight is the New Projects columnist for Linux Journal.
Today’s modular x86 servers are compute-centric, designed as a least common denominator to support a wide range of IT workloads. Those generic, virtualized IT workloads have much different resource optimization requirements than hyperscale and cloud applications. They have resulted in a “one size fits all” enterprise IT architecture that is not optimized for a specific set of IT workloads, and especially not emerging hyperscale workloads, such as web applications, big data, and object storage. In this report, you will learn how shifting the focus from traditional compute-centric IT architectures to an innovative disaggregated fabric-based architecture can optimize and scale your data center.
Sponsored by AMD
Built-in forensics, incident response, and security with Red Hat Enterprise Linux 6
Every security policy provides guidance and requirements for ensuring adequate protection of information and data, as well as high-level technical and administrative security requirements for a system in a given environment. Traditionally, providing security for a system focuses on the confidentiality of the information on it. However, protecting the data integrity and system and data availability is just as important. For example, when processing United States intelligence information, there are three attributes that require protection: confidentiality, integrity, and availability.
Learn more about catching the bad guy in this free white paper.
Sponsored by DLT Solutions
| Using Salt Stack and Vagrant for Drupal Development | May 20, 2013 |
| Making Linux and Android Get Along (It's Not as Hard as It Sounds) | May 16, 2013 |
| Drupal Is a Framework: Why Everyone Needs to Understand This | May 15, 2013 |
| Home, My Backup Data Center | May 13, 2013 |
| Non-Linux FOSS: Seashore | May 10, 2013 |
| Trying to Tame the Tablet | May 08, 2013 |
- Using Salt Stack and Vagrant for Drupal Development
- Making Linux and Android Get Along (It's Not as Hard as It Sounds)
- New Products
- Drupal Is a Framework: Why Everyone Needs to Understand This
- Validate an E-Mail Address with PHP, the Right Way
- A Topic for Discussion - Open Source Feature-Richness?
- New Products
- New Products
- The Pari Package On Linux
- Home, My Backup Data Center
Enter to Win an Adafruit Prototyping Pi Plate Kit for Raspberry Pi

It's Raspberry Pi month at Linux Journal. Each week in May, Adafruit will be giving away a Pi-related prize to a lucky, randomly drawn LJ reader. Winners will be announced weekly.
Fill out the fields below to enter to win this week's prize-- a Prototyping Pi Plate Kit for Raspberry Pi.
Congratulations to our winners so far:
- 5-8-13, Pi Starter Pack: Jack Davis
- 5-15-13, Pi Model B 512MB RAM: Patrick Dunn
- Next winner announced on 5-21-13!
Free Webinar: Linux Backup and Recovery
Most companies incorporate backup procedures for critical data, which can be restored quickly if a loss occurs. However, fewer companies are prepared for catastrophic system failures, in which they lose all data, the entire operating system, applications, settings, patches and more, reducing their system(s) to “bare metal.” After all, before data can be restored to a system, there must be a system to restore it to.
In this one hour webinar, learn how to enhance your existing backup strategies for better disaster recovery preparedness using Storix System Backup Administrator (SBAdmin), a highly flexible bare-metal recovery solution for UNIX and Linux systems.






3 hours 28 min ago
9 hours 7 min ago
15 hours 7 min ago
15 hours 29 min ago
15 hours 39 min ago
15 hours 43 min ago
16 hours 14 min ago
19 hours 5 min ago
19 hours 40 min ago
19 hours 41 min ago