How do I convert a point layer into multiple polygons? Ideally each polygon would take into account the weight of each point.
EDIT: Just to clarify my intention. I have a layer with 2,000 points. I want to end up with a polygon layer which has three polygons where each polygon covers the area of 1/3 of those points.
Message was edited by: Roberto DeDeus
You could Using graduated symbols—Help | ArcGIS for Desktop
or you could buffer each point based on the field Buffer—Help | ArcGIS for Desktop
And for density you'll want
Point Density—Help | ArcGIS for Desktop
or
Kernel Density—Help | ArcGIS for Desktop
EDIT:
i missed Using proportional symbols—Help | ArcGIS for Desktop
a voronoi diagram will subdivide space from input points.
Examining local variation—Help | ArcGIS for Desktop in geostatistical analyst
Create Thiessen Polygons—Help | ArcGIS for Desktop with an advanced license
or Triangulation tools... http://www.arcgis.com/home/item.html?id=6e9bc6cbf93d4939b2eb04ff8519be47
my humble but free offering
Dan, that's a great Thiessen tool you uploaded to ArcGIS Online! Thanx for sharing!
Well your modified question, is indeed different... perhaps Aggregate Points—Help | ArcGIS for Desktop
might be a first step, although getting to the target of 3 polygons and 3 only may be a bit out of its realm. But you will need an Advanced license. And perhaps Aggregate Polygons—Help | ArcGIS for Desktop could be used in association with it after the initial clustering
Can you provide a picture of what you hope to accomplish? There are (almost) an infinite number of solutions to this problem the way I see it.
A rather manual way (and using an Advanced license) could be:
This is very manual and you may have a problem when using 2000 points. In my case using 300 point the number of records in the Near table was 300 * 100 = 30000. In you case it will be 2000 * 667 = 1334000.
I'm sure there must a nice algoritm implemented in Python to do the job...
BTW, it would be nice if the Grouping Analysis—Help | ArcGIS for Desktop would do the job, but it has no option to divide into equal groups.
Maybe the Location-allocation analysis—Help | ArcGIS for Desktop could be helpful?