README.md

Have:

A ton of overlapping polygons, representing neighborhoods that people drew and named. (GeoJSON here.) Well-known neighborhoods will have many polygons with the same name, and similar shapes.

Want:

A summary map of polygons representing the area where each neighborhood name is dominant. That is, the area where a given neighborhood name is used more than any other neighborhood name.

My approach:

Overlay a (hexagonal) grid, and for each cell get all neighborhood polygons overlapping it, then assign to the cell the name that appears most among those polygons. Essentially, this is a raster map.

Question:

Is there a way to do this with a more genuine vector approach? My grid is sufficiently fine, but it's still a grid, bumpy and hexagon-y rather than smooth and precise-looking.

You might find a suitable approach here: http://blogs.esri.com/esri/arcgis/2012/11/13/spaghetti_and_meatballs/

A stupid question: what would you do if a point (or a hexagon, for that matter) is designated equally many times in two areas?