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Create catchment area for stores

HectorBorro1

I need to create a polygon showing where my customers live (several million) for each of the locations of my stores (150)

Visually, it is very simple to see where they are:

The problem arises when I need to create a polygon in order to run some additional analysis down the road like demographics and such...

Any ideas? I tried running HotSpot Analysis, but it is very very slow even when doing it for only two stores and 100k customers as a trial...

cheerrs and thanks!

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HectorBorro1

well, I thought I had replied yesterday but I did not click POST... dumb of me....

Thanks for your suggestion. I tried converting to raster and back, but the polygons were too "ugly and non-descript"

so, I kept looking around and found the toolbox AGGREGATE POINTS which seem to do the trick.

Now the question is: Is there a way to remove the small "islands"? (marked in orange circles)

DanPatterson_Retired

that is approximating a convex hull and for that many points would be difficult to do.

You could approxiate the bounds in raster, by converting points to raster for each class which will effectively fill in the interveneing space without having to do buffers (which would fail). The result could then be converted back to vector.

The issue would be the appropriate selection of cell size and extent

HectorBorro1

Many thanks but I think this marks the extent of the whole points:

Whereas I would need something like the following (drawn by hand, apologies) where the density is greater

Rickey Fite Any ideas on how to achieve it?

RickeyFight

Have you tried this:

How To: Convert a point feature class to a polygon feature class

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