Previous typing was confusing the compiler. It could not figure out the
difference between the proj4 property and the constructor, which lead to
errors such as:
- ol.proj.setProj4(proj4)
ERR! compile /home/gberaudo/dev/ngeo/src/proj/epsg21781.js:8: ERROR - actual parameter 1 of ol.proj.setProj4 does not match formal parameter
ERR! compile found : function (new:proj4): ?
ERR! compile required: (null|proj4)
ERR! compile ol.proj.setProj4(proj4);
ERR! compile ^^^^^
- ol.proj.proj4.get().defs('EPSG:21781', epsg21781def)
ERR! compile /home/gberaudo/dev/ngeo/src/proj/epsg21781.js:26: ERROR - Property defs never defined on proj4
ERR! compile ol.proj.proj4.get().defs('EPSG:21781', epsg21781def);
ERR! compile ^^^^
OpenLayers
OpenLayers is a high-performance, feature-packed library for creating interactive maps on the web. It can display map tiles, vector data and markers loaded from any source on any web page. OpenLayers has been developed to further the use of geographic information of all kinds. It is completely free, Open Source JavaScript, released under the 2-clause BSD License (also known as the FreeBSD).
Getting Started
- Download the latest release
- Install with npm:
npm install openlayers - Clone the repo:
git clone git@github.com:openlayers/openlayers.git
Supported Browsers
OpenLayers runs on all modern browsers that support HTML5 and ECMAScript 5. This includes Chrome, Firefox, Safari and Edge. For older browsers and platforms like Internet Explorer (down to version 9) and Android 4.x, polyfills for requestAnimationFrame and Element.prototype.classList are required, and using the KML format requires a polyfill for URL.
Documentation
Check out the hosted examples, the workshop or the API documentation.
Bugs
Please use the GitHub issue tracker for all bugs and feature requests. Before creating a new issue, do a quick search to see if the problem has been reported already.
Contributing
Please see our guide on contributing if you're interested in getting involved.
Community
- Need help? Find it on Stack Overflow using the tag 'openlayers'
- Follow @openlayers on Twitter
- Discuss with openlayers users on IRC in
#openlayersatchat.freenode