How to compute the presence of a minimum amount of green

This article is a stub.

In many spatial planning cases, there are requirements not just for the presence of certain features, but also for those features to be of at least a specified minimum size. For example, when the presence of "usable" green in an urban environment usually requires the green features to be continuous and at least a few hundred square meters. Using Attributes, an Average Overlay, and a Combo Overlay, its possible to compute how much of a particular feature is in or nearby any given location.

How to compute the size of features on a grid: