The map-clustering groups together a set of features (most of the time routes) on a map and shows only one symbol or square for the whole set.
There are two main reasons why we do this:
Here is an example where we use it on the Route Search:
In this case, the area of the map shows a large number of routes, but only a few are shown on the map and on the list.
You can see more in the following way
The cluster is represented by a grey-square. Only one route is shown per cluster as default. In this case, it is the route with the best score.
Clustering is used on many maps such as:
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