Sunday, 30 June 2019

Gephi: Layout window


By using Layout window, you can visualize the network graph in different ways. Gephi provides number of algorithms to visualize the data, by using Layout window, you can select an algorithm that suits to your data representation.

You can see the layout window on the left-hand side of Gephi workspace.



If by any chance, you are unable to view the layout window, follow below steps.

Make sure that you are in Overview tab.



Check now, whether you can see layout window or not. If you still unable to see layout window, got to Window -> Layout.



Working with default layout algorithms
Gephi provides multiple layout algorithms to visualize the data.



At the time of writing this post, Gephi 0.9.2 supports below layout algorithms.
a.   Contraction
b.   Expansion
c.    Force Atlas
d.   Force Atlas2
e.   Fruchterman Rein Gold
f.     label Adjust
g.   Nooverlap
h.   OpenOrd
i.     Random layout
j.     Rotate
k.    Yifan Hu
l.     Yifan Hu Proportional

How to run a layout algorithm against a graph?
Select the layout algorithm from layout drop down.



Select the layout algorithm and click on ‘Run’ button


When I click on ‘Run’ button, the graph is changed like below.




How to control the layout of a graph?
Once you select the layout algorithm, layout window populates the properties that are relevant to the algorithm. You can adjust the values of these properties to enhance the visualization of the graph.

For example, When I selected the algorithm 'Force Atlas', it populates the properties that are relevant to 'Force Atlas' algorithm.


When I click on the ‘Run’ button, the graph is changed like below.




When I select the checkbox 'Attraction Distrib', the graph is changed like below.



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