How To Install therion on Debian 9
Introduction
In this tutorial we learn how to install therion on Debian 9.
What is therion
therion is:
Therion aids the process of drawing up cave surveys (maps). Drawings are done over scans and can be distorted to fit the centreline data. Output is in single sheet or atlas style PDF or SVG files. All data is stored in text files and a map editor (xtherion) is provided to aid in the creation of the files. A wide range of co-ordinate systems is supported.
Therion can also produce 3D models, generated from walls and passage-heights. Output formats supported are Survex .3d files, VRML, DXF, SVG, shapefiles, and the native .lox. Scanned map overlays and relief data can be incorporated into models. Therion is compatible with Survex, and centreline data can be stored in Survex or Therion form. If survex is installed it is used for loop closures. Centreline data and sketches can be imported from PocketTopo, allowing full paperless surveying.
TeX and metapost are used to generate the images. libtk-img is needed to use scans in formats other than GIF and PNM (such as PNG and JPEG). Survex will be used for loop-closure if installed, but is not required.
You will need appropriate TeX language packages to process therion files which specify those character sets: texlive-lang-czechslovak is needed to process the examples, and texlive-lang-cyrillic is also suggested. See README.Debian for details.
There are three methods to install therion on Debian 9. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install therion Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install therion using apt-get by running the following command:
sudo apt-get -y install therion
Install therion Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install therion using apt by running the following command:
sudo apt -y install therion
Install therion Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Debian. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install therion using aptitude by running the following command:
sudo aptitude -y install therion
How To Uninstall therion on Debian 9
To uninstall only the therion package we can use the following command:
sudo apt-get remove therion
Uninstall therion And Its Dependencies
To uninstall therion and its dependencies that are no longer needed by Debian 9, we can use the command below:
sudo apt-get -y autoremove therion
Remove therion Configurations and Data
To remove therion configuration and data from Debian 9 we can use the following command:
sudo apt-get -y purge therion
Remove therion configuration, data, and all of its dependencies
We can use the following command to remove therion configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge therion
Dependencies
therion have the following dependencies:
References
Summary
In this tutorial we learn how to install therion package on Debian 9 using different package management tools: apt, apt-get and aptitude.