Say I have an ArcGIS Server GeometryService running, and a map service containing ZIP code polygons (all ArcGIS 10.1).
I want to pass a coordinate, and have it return which ZIP code contains that coordinate. There seem to be many ways to approach "does THIS point fall within THIS polygon?", but how would I find out which polygon among them all contains a point?
In other words, there's this example where, given two points and a polygon, it will return which of the points is contained by the polygon. But what if you only know the point, and the objective is to determine which polygon?