Wiki source code of Widget Connectivity

Version 4.1 by reginafilange on 2025/05/30 13:50

version	line-number	content
3.1	1	== Widget Connectivity ==
	2
	3	Source code: [[https:~~/~~/github.com/the-virtual-brain/tvb-widgets>>url:https://github.com/the-virtual-brain/tvb-widgets]]
	4
	5	This is part of a Pypi release: [[https:~~/~~/pypi.org/project/tvb-widgets/>>url:https://pypi.org/project/tvb-widgets/]]
	6
	7	//tvb-widgets// is also already installed in the official image released for EBRAINS lab, where you can test it directly.
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	9
	10	== Purpose ==
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	12	Jupyter lab widget for visualizing or do operations on a connectivity
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	14
	15	=== Visualization: ===
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	17	- in 2D can visualize weights or tracts matrixes;
	18
	19	[[image:image-20230919110833-1.png]]
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	21	- in 3D can visualize regions and their respective edges
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	23
	24	==== [[image:image-20230919110853-2.png]] ====
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	26
	27	=== Operations: ===
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	29	- remove selected nodes from a connectivity, results in a new connectivity containing only the nodes that were not selected;
	30
	31	- remove unselected nodes from a connectivity, results in a new connectivity containing only the selected nodes;
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	33	- remove unselected edges, results in a new connectivity with the same number of regions but without the edges of unselected regions;
	34
	35	- remove selected edges, results in a new connectivity with the same number of regions but without the edges of selected regions.
	36
	37
	38	=== Usage: ===
	39
	40	After instantiating the widget it allows export of the currently selected connectivity:
	41
	42	{{code language="python"}}
	43	from tvbwidgets.api import ConnectivityWidget
	44	from tvb.datatypes.connectivity import Connectivity
	45
	46	conn = Connectivity.from_file() # defaults to connectivy_76.zip
	47	conn.configure()
	48
	49	wid = ConnectivityWidget(conn, default_active_tab='viewers') # default_active_tab can be any value between 'viewers'\|'operations'\|'both'
	50
	51	display(wid)
	52	# ....do some operations...
	53	# replace None in the method below with the gid of the connectivity you wish to export
	54	# if no gid is provided it will export the connectivity currently viewed
	55
	56	new_connectivity = wid.get_connectivity(gid=None)
	57	new_connectivity
	58	{{/code}}
	59
	60

Wiki source code of Widget Connectivity

TVB Widgets