Aggregate points by geo-boundaries


Besides grid and hexbin, another most used aggregation style is by geo-boundaries such as country, state and county boundary. Adding to our existing aggregation layer, we will create a new polygon aggregation layer that aggregates points by polygon, it will provide a similar set of aggregation options the grid/hex layer provides.

- Allow selection of point columns and polygon dataset to aggregating points by polygons.

- The aggregation count will be appended to the polygon datasets

Start by reviewing the existing grid and hex aggregation layers and the polygon dataset behavior described in the issue. Define how users select point columns and a polygon dataset, then verify that aggregation counts are appended to the polygon dataset and exposed with comparable aggregation options.

Written by the indexing model from the issue text.