ngraph-gtk-addins software package provides addin collection of Ngraph-gtk, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install ngraph-gtk-addins
ngraph-gtk-addins is installed in your system.
Make ensure the ngraph-gtk-addins package were installed using the commands given below,
$ sudo dpkg-query -l | grep ngraph-gtk-addins *
You will get with ngraph-gtk-addins package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Graphics |
| Package | ngraph-gtk-addins |
| Version | 6.06.13-3 |
| Description | addin collection of Ngraph-gtk |
| Sub Section | Graphics |