Cloud Optimised Geotiffs in TerriaJS

on YouTube ↗05m

" summary

TerriaJS implements Cloud Optimised GeoTIFF (COG) support so maps can point directly to TIFFs in cloud storage and fetch pixel values for client-side reclassification and band maths (composite from separate per-band TIFFs to render true‑color or NDVI). Working 2D (Leaflet) and 3D (Cesium) demos overlay COGs on terrain and simulate dynamic reclassification (elevation + tide). Current blockers are two separate code paths and imperfect reprojection in georaster-layer-for-leaflet and TiffImageryProvider, causing tile discontinuities; roadmap is a single code path and a Leaflet→Cesium bridge.

AI-written summary · about

" related talks

• 22mState of TerriaJSNick Forbes-Smith, Nanda Sankaran, Lawrence Owen · FOSS4G SotM Oceania 2024
• 19mTerriaJS: An open-source framework for 3D geospatial data...Mats Henrikson · FOSS4G SotM Oceania 2018
• 27mCartography on the WebDerek Hurley · CascadiaJS 2021
• 33mLighting TalksBrett Camper · JS.Geo 2014
• 20mA semantic terrain engineFelix Palmer · FutureJS 2014
• 19mChoosing Tegola to create vector tilesAngus Scown · FOSS4G SotM Oceania 2018
• 16mRaster tiles to vector tiles: how to cross the gulfSteve Bennett · FOSS4G SotM Oceania 2018
• 07mSimple and sustainable web developmentGaetanBoisson · Svelte Summit Spring 2024