Thread:Project:Support desk/Can mediawiki draw flowcharts with embedded links?

Is there an extension that can draw flowcharts with clickable links embedded? E.g. if the user provides PlantUML - style code Source - Target: Page_for_relation relation then a box marked Source will be drawn with a line going to a box marked Target, and the line will be marked with a link showing "relation". The text "relation" will be a clickable link which links to a page titled Page_for_relation?

I've tried to install the extension Flowchartwiki but I don't think I have enough permissions to install the required graphviz software on the webhost.