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An update site is web space used by the Updater which enables users to share their macros, scripts and plugins with other researchers. With update sites, you do not need to manually download and install anything; ImageJ2 takes care of it for you.
Available update sites
You can browse the list of available update sites.
Following an update site
The Fiji distribution of ImageJ2 ships with both the
Fiji sites enabled. You can transform your ImageJ2 installation into a Fiji one simply by enabling the
Fiji update site.
Out of the box, ImageJ2 has only the core ImageJ update site enabled. To enable additional features, choose Help › Update…, then click the “Manage update sites” button.
For further details, see Following an update site.
Check if an update site is activated
In Fiji, if you write macros and plugins that rely on some functionalities provided by a specific update site (dependencies), you can use the following command to check if the update site is activated, and print a message if not.
This uses the update site service.
Example in Jython.
#@ UpdateService updateService if not updateService.getUpdateSite("Fiji-Legacy").isActive(): print "Please activate the Fiji-legacy update site"
Creating your own update site
Anyone can share their extensions (plugins, scripts, etc.) by creating their own update site. You can use ImageJ2’s hosted update site service, or host it on your own server.
Frequently asked questions
See the Update site FAQ.