If your data is represented as lines or polygons you can also overlay the data, but you should be aware that you are introducing some interpolated data into your results. This is very easy for point data, as you take all the points within a single hexagon and specify how you want to aggregate each field in the point data (maximum, minimum, average, count, etc.). You simply overlay your source data (for example, a set of points representing bridge locations) and a layer of hexagons, and then summarize the values that intersect your hexagons. You just need more detailed data than the scale of your hexagons and then you aggregate that data into your hexagons. How do you assign data to hexagons?Īssigning data to hexagons is pretty easy. Right: 20 km rectangles showing density of bridges. Left: 20 km hexagons showing density of bridges.
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