In real-life mapping scenarios, it turns out that you want to display certain features when (for example) stepping through a timeline, because they're helpful in elucidating what is happening as the timeline progresses, but they make no sense as menu items in the taxonomy/category menu. A simple mechanism in the XML such as @type="noMenu" on the place element could be carried over into the JSON as a "noMenu": true property, which would then cause the HolLayer object to ignore them when constructing the menu. We could also have a similar setting for an entire category, but that seems less useful.
In real-life mapping scenarios, it turns out that you want to display certain features when (for example) stepping through a timeline, because they're helpful in elucidating what is happening as the timeline progresses, but they make no sense as menu items in the taxonomy/category menu. A simple mechanism in the XML such as
@type="noMenu"
on the place element could be carried over into the JSON as a"noMenu": true
property, which would then cause the HolLayer object to ignore them when constructing the menu. We could also have a similar setting for an entire category, but that seems less useful.