socnetv (1)

socnetv < file.net >

socnetv -V | --version

socnetv -h | --help

Social Networks Visualiser (SocNetV) is a cross-platform, user-friendly application for the analysis and visualization of Social Networks.

It lets you construct networks (mathematical graphs) with a few clicks on a virtual canvas or load networks of various formats (GraphViz, GraphML, Adjacency, Pajek, UCINET, etc) and modify them to suit your needs.

The application can compute basic network properties, such as density, diameter and distances (shortest path lengths), as well as more advanced structural statistics, such as node and network centralities (i.e. closeness, betweeness, graph), clustering coefficient, PageRank, etc.

Various layout algorithms (i.e. Spring-embedder, radial and layered according to node centralization) are supported for meaningful visualizations of your networks. Furthermore, random networks (Erdos-Renyi, Watts-Strogatz, ring lattice, etc) can be created with a few clicks.

SocNetV also offers a built-in web crawler, allowing you to automatically create networks from all links found in a given initial URL.

SocNetV is being developed in C++ with the Qt5 GUI development toolkit. Qt5 is the only dependency.

--version | -V

Displays the version of the program.

--help | -H

Displays a short help message.

file.net

The name of the file you want to open.

SocNetV has a simple Graphical User Interface (GUI). The biggest (right) part of the window is occupied by a virtual "canvas" where network nodes and edges appear. To the left of it, there is a dock with 4 buttons (add/remove node, add/remove link) and some LCDs which display statistics. On the top of the window, you will find the menu with all commands and options, and at the bottom there is a status bar, where messages appear.

To create a new node, you can double-click on the canvas or click on the "add node" button.

To create a new link, you can middle-click on the source node and then on the target node. Alternatively, you can click on the "add link" button from the dock.

You move a node by left-clicking and dragging it. When you right-click on a node, a context menu appears. From there you can remove the node, change its color, label, size as well as its shape. SocNetV supports many kinds of node shapes, i.e rectangles, diamond, ellipse, circle, etc. A similar menu appears when you right click on a link.

Supported Formats

SocNetV supports many network formats, i.e. GraphViz (.dot), GraphML (.graphml), Pajek (.net), Adjacency matrix (.net, .txt). The default file format is GraphML.

You can load GraphML files by clicking on menu File > Load. To load other network formats, use the menu File -> Import.

Layout algorithms

SocNetV also supports a variety of layout algorithms, such as spring-embedder (i.e. energy based) and centralities-based. The latter reposition all nodes in circles of different radiuses (i.e. more central nodes appear near the centre of the canvas) or in levels of different height (more central nodes appear near to the top).

You can apply layout algorithms from the menu Layout or by clicking on the checkboxes on the dock. Not all layouts appear on the dock, though.

The network file parser is not 100% trustworthy. For instance, complicated Pajek or GraphML files can crash the application.

Antialiasing is on by default. This slows down the application when the network has many nodes and edges. You can disable antialiasing by pressing F8 .

Dimitris Kalamaras <[email protected]>

Report bugs to https://bugs.launchpad.net/socnetv. In order to send a meaningful bug report, run socnetv from a terminal, press F9 and repeat the steps which lead to bug manifestation. SocNetV will be printing debug messages on the standard output (the terminal in Linux).

The latest version of this program can be found at <http://socnetv.sourceforge.net>. It is distributed in source code and binary packages for Linux distributions, image disks for Mac OS X and zipped executables for Windows.

To get the latest development version use: git clone ssh://[email protected]/p/socnetv/git socnetv

This program is distributed under the terms of the GNU General Public License 3 as published by the Free Software Foundation <http://www.gnu.org/licenses/gpl.html>. See the built-in help for details on the License and the lack of warranty.

graphviz(1)