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Found 9 Skills
Convert JSON rows with WKT geometry strings into a GeoJSON FeatureCollection using raw PostGIS SQL.
Convert JSON rows with latitude/longitude fields into a GeoJSON FeatureCollection using raw PostGIS SQL.
Use when asked to convert between KML and GeoJSON formats, or convert geo data for mapping applications.
Index points into a hexagonal grid
Cross-application GIS skill — CRS reference, data formats, Blender/QGIS integration via digitalmodel.gis
Find nearest features efficiently using PostGIS KNN (<->) and distance ordering (with SRID/unit guidance).
MANDATORY when working with geographic data, spatial queries, geometry operations, or location-based features - enforces PostGIS 3.6.1 best practices including ST_CoverageClean, SFCGAL 3D functions, and bigint topology
Use when "GeoPandas", "geospatial", "GIS", "shapefile", "GeoJSON", or asking about "spatial analysis", "coordinate transformation", "spatial join", "choropleth map", "buffer analysis", "geographic data", "map visualization"
Use for web apps that need Leaflet-first GIS mapping, location selection, map-driven UIs, or geofencing validation. Covers Leaflet setup, optional tile providers, data storage, and backend validation patterns.