Centroids layer

The Centroids layer displays all centroid locations registered in the system.

A centroid is the logical representation of a "volume of intensity" for a specific attribute of the data model.

For example, the inhabitants of a specific area or the cars directed to a specific area.

The centroid is a sort of "logical gate" connected to a node of the network and represents the "entry point" towards the node (and also the "return point" from the node) of the considered quantity "volume".

For example: All the inhabitants of a district that in a certain time slot enter the traffic network.

It is not realistic to model and maintain an account of a single inhabitant. You can thus define a centroid that represents all of them (that represents the "volume" of inhabitants).

Caution:  A centroid is not a geometric concept and it has nothing to do with the "barycenter" of the area.

Click a centroid icon to open a pop-up window, listing the attributes of a centroid.

According to the zoom level, a single icon can group two or more "real" centroids.

In this case, before showing the list of attributes, a pop-up window opens allowing you to select from the list the specific centroid associated with the icon.

Tip:  You can get the same result through the operation (→ Showing a selected item).