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geometry-processing

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igor-suhorukov / openstreetmap_h3

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OSM planet dump high performance data loader. Transform OpenStreetMap World/Region PBF dump into partitioned by H3 regions PostGIS pgsnapshot (lossless) OSM schema representation and/or into ArrowIPC/Parquet dumps

java converter world apache-spark arrow openstreetmap geospatial postgresql postgis parquet column-store pbf geometry-processing parquet-files apache-arrow citusdb duckdb pbf-format apach-sedona
  • Updated Jul 22, 2025
  • Java

baronk2 / chelan-xc-classic-scorekeeping

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Java-based graphical visualizer and distance calculator for hang gliding and paragliding cross country (XC) triangles flown over different waypoints using GPS coordinates and Earth's oblate spheroid geometry -- Used for triangle inclusion/disclusion in 2012 Chelan XC Classic Hang Gliding / Paragliding Competition scorekeeping rulebook

data-visualization rulebook geographical-information-system geometry-processing paragliding xc cross-country scorekeeping hang-gliding free-flight
  • Updated Apr 20, 2023
  • Java

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