topic Query and borrow from neighboring polygons? in ArcGIS Pro Questions https://community.esri.com/t5/arcgis-pro-questions/query-and-borrow-from-neighboring-polygons/m-p/460058#M20262 <HTML><HEAD></HEAD><BODY><P>I have a feature class with about 12,000 contiguous polygons&nbsp;(they are thiessen polygons). Each polygon has&nbsp;either a surplus or deficit value that represents the availability or lack&nbsp;of resources within that polygon. How can I test all neighboring polygons to query their values and then create a new value for&nbsp;every polygon based on the optimal reallocation of values between it and its adjacent polygons? I realize that this will create a cascade between polygons if there are multiple deficits in a row, so I might also need to build in a limit to the number of neighbours the query will run.</P><P></P><P>I am aware of the <A href="https://pro.arcgis.com/en/pro-app/tool-reference/analysis/polygon-neighbors.htm">Polygon Neighbors</A> tool in ArcGIS Pro, but from what I understand this only identifies which polygons are neighbours. I need to go a few steps further and find a way to query the value in each neighbouring polygon and then "borrow" their resources when they are available.</P><P></P><P>When I asked ESRI Canada's tech support they said this will likely require some python code, but I should ask GeoNet first.</P><P></P><P>I am using ArcGIS Pro 2.4 This is the first time I've used GeoNet, so please let me know if I should be posting this in another sort of community. Thanks!</P></BODY></HTML> Wed, 19 Feb 2020 21:04:13 GMT JoshuaMacFadyen 2020-02-19T21:04:13Z Query and borrow from neighboring polygons? https://community.esri.com/t5/arcgis-pro-questions/query-and-borrow-from-neighboring-polygons/m-p/460058#M20262 <HTML><HEAD></HEAD><BODY><P>I have a feature class with about 12,000 contiguous polygons&nbsp;(they are thiessen polygons). Each polygon has&nbsp;either a surplus or deficit value that represents the availability or lack&nbsp;of resources within that polygon. How can I test all neighboring polygons to query their values and then create a new value for&nbsp;every polygon based on the optimal reallocation of values between it and its adjacent polygons? I realize that this will create a cascade between polygons if there are multiple deficits in a row, so I might also need to build in a limit to the number of neighbours the query will run.</P><P></P><P>I am aware of the <A href="https://pro.arcgis.com/en/pro-app/tool-reference/analysis/polygon-neighbors.htm">Polygon Neighbors</A> tool in ArcGIS Pro, but from what I understand this only identifies which polygons are neighbours. I need to go a few steps further and find a way to query the value in each neighbouring polygon and then "borrow" their resources when they are available.</P><P></P><P>When I asked ESRI Canada's tech support they said this will likely require some python code, but I should ask GeoNet first.</P><P></P><P>I am using ArcGIS Pro 2.4 This is the first time I've used GeoNet, so please let me know if I should be posting this in another sort of community. Thanks!</P></BODY></HTML> Wed, 19 Feb 2020 21:04:13 GMT https://community.esri.com/t5/arcgis-pro-questions/query-and-borrow-from-neighboring-polygons/m-p/460058#M20262 JoshuaMacFadyen 2020-02-19T21:04:13Z