Contouring function with OpenLayers3/GeoServer
<p>We're stocking rasters in our database, and we want to implement a function inside our web app that will allow the user to add contour lines to the map based on a raster. We want the user to be able to customize the contour levels and colors.</p>

<p>Do anyone have an idea which tools I should be using? I think that I should be using the Python scripting extension of GeoServer, but I don't know if this is possible to implement such a function.</p>

<p>Thanks for your comments !</p>