v.20.7New Feature
Polygon Dictionary for Efficient Reverse Geocoding Lookups
Polygon dictionary type that provides efficient "reverse geocoding" lookups - to find the region by coordinates in a dictionary of many polygons (world map). It is using carefully optimized algorithm with recursive grids to maintain low CPU and memory usage. #9278 (achulkov2).
Why it matters
This feature addresses the challenge of quickly and efficiently determining the polygonal region containing specific coordinates from a large set of polygons. It uses a carefully optimized algorithm with recursive grids to ensure low CPU and memory usage, making reverse geocoding scalable and performant for large datasets.How to use it
Users can enable the Polygon dictionary type by defining a dictionary with type set topolygon. The dictionary supports lookups that return the region for input coordinates using the configured polygons. Integration involves specifying the polygons data source and configuring the dictionary to utilize the optimized recursive grid algorithm for lookups.