OpenLayers Resources
- OpenLayers Community Site
- OpenLayers Issue Tracker
- OpenLayers Source Code
- OpenLayers Documentation
- OpenLayers Workshop
- OpenLayers Chat Room
OpenGeo Services
OpenGeo offers OpenLayers training, including introductory and advanced sessions, as well as OpenLayers core development to add new features to the project.
Our OpenLayers Team
David Winslow is Technical Lead of the GeoNode team. As a committer on GeoTools, GeoServer, and GeoExt, as well as a contributor to OpenLayers, his expertise covers the entire OpenGeo Stack.
Samuel has worn multiple hats during his 12-year affair with spatial technologies: user, print cartographer, web-mapper, integrator, scripter/programmer, trainer, analyst, manager.
Bart helps to develop OpenLayers and GeoExt, and has a strong interest in open standards.
About OpenLayers
OpenLayers is a JavaScript library for displaying maps in your browser. Highly extensible, it serves as the foundation of all of our web mapping interfaces. OpenLayers accesses data through industry standards, leaving it free of server-side dependencies. It is released under a BSD-style license.
- Overlay multiple standards-compliant map layers into a single application
- Displays tiles/images from WMS, WMTS, TMS, WMS-C, WMTS, Google Maps, Bing Maps, Yahoo Maps, OpenStreetMap, ArcGIS Server, ArcIMS
- Vector feature rendering and styling with support for KML, GeoJSON, WKT, GML, WFS, GeoRSS
- Web-based editing, including feature snapping and splitting, via WFS-Transactional (WFS-T) leveraging SVG or VML
- Pluggable with any JavaScript toolkit (JQuery, Ext, Dojo, MooTools)
- Client side map reprojection
- Feature clustering and paging
OpenLayers Applications
OpenLayers provides a powerful foundation for web mapping applications like the ones below:
- Styler: An interactive styling application for geospatial data.
- Community Almanac: A collaborative community building and story telling application developed for the Orton Foundation.
- GeoView: A tool for browsing geospatial data on the web.
- Vespucci: A collaborative mapping tool that takes advantage of GeoServer's versioning capability.
- NYC Building Editor: A simple demo of GeoServer's versioning ability.
OpenLayers @ OpenGeo
Recent Contributions
OpenGeo funds ongoing development of OpenLayers as part of our larger mission to make public geodata more accessible and usable to civil society. Recent contributions include:
- Major improvements to vector rendering and especially the VML renderer.
- Adding point symbol rotation, support for well known symbols and dashed/dotted lines and borders to the SLD support.
Core Development Roadmap
Full Support of Styled Layer Descriptor (SLD) specification
OpenLayers has basic support of the SLD specification of the OGC, but there are a number of more advanced options that it does not support. Among those are multiple symbolizers per rule and advanced labeling and rendering options. Another improvement needed for the web environment is to to support POST requests for WMS/Image layers to overcome the url length limitation (e.g. when using client defined SLD for rendering).
New web technology and powerful handheld devices mean that web technology can be used in an “offline mode” using local resources and synchronizing with servers with connections are restored.
Polygon collections are very often generated as sets of shapes that share boundaries. Rather than digitizing new polygons and using snapping to create a duplicate bounding, a “build polygon” tool allows users to add new polygons on to the sides of existing polygons.
