uesful
jonataswalker/ol-contextmenu
A contextmenu extension for OpenLayers. Requires OpenLayers v3.11.0 or higher. You can see here a demo or JSFiddle. npm install ol-contextmenu Load CSS and Javascript: Load CSS and Javascript: Download latest release and (obviously) load CSS and Javascript. If you provide items {Array} a submenu will be created as a child of the current item.
https://github.com/jonataswalker/ol-contextmenu
Viglino/ol-ext
Cool extensions for OpenLayers (ol). ol-ext is a set of extensions, controls, interactions, popup to use with Openlayers. View live examples online or the API documentation. Keywords: Storymap, Timeline control, CSS popup, Font Awesome symbols, charts for statistical map (pie/bar), layer switcher, control bar, wikipedia layer, legend control, search, animations, undo/redo mechanisms ol-ext exist as ES6 modules ( ol-ext) and as pure js ( openlayers-ext).
https://github.com/Viglino/ol-ext
ol-ext
Cool extensions to use with Openlayers (ol).
http://viglino.github.io/ol-ext/

OpenLayers - 3rd party
The libraries below provide additional functionality by extending OpenLayers or integrating well with it.
https://openlayers.org/3rd-party/


Seonglae Cho