08-26, 14:45–15:15 (Europe/Rome), Room Onice
GeoRasterLayer is a LeafletJS Plugin for visualizing GeoTIFFs. This presentation will show live demos of new features and discuss the roadmap for the next couple of years.
Features
- Support for nearly all projections, thanks to proj4-fully-loaded and epsg.io
- Super faster rendering thanks to a simple nearest neighbor interpolation
- Use of web workers means seamless integration that doesn't block main thread
- Loads large geotiffs greater than a hundred megabytes
- Supports custom rendering including custom colors, directional arrows, and context drawing
- Doesn't depend on WebGL
Videos
- Edge Compute: Cool Stuff You Can Do With COGs in the Browser
- 2019 - Algorithm Walk-through: How to Visualize a Large GeoTIFF on Your Web Map
Examples
- Loading the georaster-layer-for-leaflet library along with GeoBlaze via a script tag. You can view the source code here and the live demo here.
- Combining two Cloud Optimized GeoTIFFs together to create an NDVI map. You can view the source code here and the live demo here.
- Identifying Wildfires from a Landsat 8 Scene. You can view the source code here and the live demo here.
- Visualizing Population COG. You can view the source code here and the live demo here.
- Display a COG that represents only one band of a Landsat scene. You can view the source code here and the live demo here.
- Display a COG with YCbCr Photometric Interpretation. You can view the source code here and the live demo here.
Daniel Dufour is the CEO of GeoSurge, a geospatial tech company with a focus on data compression, natural language processing, remote sensing, and visualization. He created or co-created several open-source geospatial projects, including geotiff.io, georaster, georaster-layer-for-leaflet, geoblaze, geowarp, and proj4-fully-loaded.