This repo compares COMTiles against other cloud optimized tile archive formats like PMTiles, Cotar and TileBase. There will be also a evaluation of possible improvements of the current COMTiles spec regarding the index size and decoding performance.
- The pyramid project compares different lightweight compression algorithms regarding compression ratio and decoding performance for the root pyramid of a COMTiles archive.
- The lib folder contains modified library versions of the profiled cloud optimized tile archive formats for the purpose of better profiling the formats.
- In the data folder there are selected test data sets for running the evaluation.
- The fragment project evaluates the lazy loading of COMTiles index fragments against the approaches of the other tile archive formats.
- run
npm installinlib/comtiles - run
npm installinlib/pmtiles - run
npm installinfragment