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1	1	Source code: [[https:~~/~~/github.com/the-virtual-brain/tvb-widgets>>https://github.com/the-virtual-brain/tvb-widgets]]
2	2
3		-Immediate testing: [[https:~~/~~/lab.ch.ebrains.eu/hub/user-redirect/lab/tree/shared/TVB%20Widgets/REPO/tvb-widgets/notebooks/HeadWidget.ipynb>>https://lab.ch.ebrains.eu/hub/user-redirect/lab/tree/shared/TVB%20Widgets/REPO/tvb-widgets/notebooks/HeadWidget.ipynb]]
	3	+This is part of a Pypi release: [[https:~~/~~/pypi.org/project/tvb-widgets/>>https://pypi.org/project/tvb-widgets/]]
4	4
	5	+//**tvb-widgets**// is also already installed in the official image released for EBRAINS lab, where you can test it directly.
	6	+
5	5	== Purpose ==
6	6
7	7	It is a Jupyter widget intended for visualization of the 3D Head data available for a patient:
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43	43	1. Use a file browser to load the data and automatically display it
44	44	1. Use directly the API to load the data and display it
45	45
46		-
47	47	For the first option, you have to run the following 2 lines of code in a notebook cell and then just use the UI controls:
48	48
49	49	(% class="box" %)
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52	52	display(widget)
53	53	)))
54	54
	56	+{{html}}
	57	+<iframe width="840" height="480" src="https://www.youtube.com/embed/BCCh-wdcnVo" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>{{/html}}
55	55
	59	+
56	56	For the second option, the API is described below:
57	57
58	58	In a new cell, we instantiate the **HeadWidget** and a **FaceSurface** datatype that we want to visualize. Using the //**add_datatype**// method we add the surface to our widget and __display__ the widget:
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70	70	)))
71	71
72	72	{{html}}
73		-<iframe src="https://drive.google.com/file/d/1Egp9Lk-HGMATc9em6Kw_jSHmybTD2vzM/preview" width="840" height="480" allow="autoplay"></iframe>
	77	+<iframe width="840" height="480" src="https://www.youtube.com/embed/8bmjKp3BYFA" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
74	74	{{/html}}
75	75
76	76	Next, we can continue adding other datatypes to this widget, by calling //**add_datatype**// multiple times. A maximum of 10 datatypes are supported by this widget.
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96	96	)))
97	97
98	98	{{html}}
99		-<iframe src="https://drive.google.com/file/d/1RLwts75Hh31LoPdWLK7QOM61KIsOabF1/preview" width="840" height="480" allow="autoplay"></iframe>
	103	+<iframe width="840" height="480" src="https://www.youtube.com/embed/6UQhL9gd1HM" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
100	100	{{/html}}
101	101
102	102	We can also provide a **RegionMapping** to be used as colormap for a surface: