Optional
activeWhen true (which is the default), tells the EdgePathEditor to mark any new connection dragged with the
mouse as "edited", ie. to fix the initial geometry. This is particularly beneficial when using
an anchorPositionFinder
: it results in every new edge having a 'geometry' object, so that if
you export the dataset, you will get the anchor values you chose in your anchorPositionFinder. If an edge
does not get exported with geometry for its path, next time it is loaded it will be assigned anchors
automatically, which may or may not match the anchors you actually wanted.
Options for the EdgePathEditor.