Iván Sánchez Ortega
Iván has been a web developer and FLOSS advocate since the early 2000s; then he bought a GPS receiver and got involved in OpenStreetMap and OSGeo. He’s worked with nautical charts, indoor positioning, USB microcontrollers, LibreOffice, multispectral rasters, all of it with unhealthy amounts of Javascript.
Sessions
Gleo is a nascent javascript WebGL mapping library. It aims to find a niche alongside Leaflet, OpenLayers, MapLibre and Deck.gl.
This library was presented at FOSS4G 2022, with an emphasis on its architectural foundations: geometry/reprojection/antimeridian handling, and object-oriented abstractions for WebGL data structures.
This session provides a tour of the features developed during the last year. These include, among others:
- Work done as part of the OSGeo-OGC codesprints (OGC API clients, experimental symbols)
- Animated symbols (render loop)
- Symbol class decorators (ability to add more functionality to a cartographic symbol class during runtime)
- Flexibility of scalar field manipulation (symbols that render as a magnitude instead of a colour, then the field renders as e.g. a heatmap)
These functionalities are a fresh approach to cartographic rendering and will provide a glimpse of the potential of Object-Oriented WebGL manipulation for cartographic rendering.