I'm using openlayers v5.3.0, and actually loading a map with many markers (in the snippet are a small subset, in my code there are thousands).  What i want to do is to customized those markers, styling them with differents colors and text.  How c...

I did some research on labeled markers with OpenLayers 5.3. Unfortunately, I didn't get the text to work. I inserted text to the feature object. The marker with it's image is visible and works as expected, but it doesn't show any text.  H...

I am trying to change the opacity of a multipolygon feature on mouseover. I am able to get the feature on mouseover and change the style but am unable to animate the process of the opacity going from 0.3 to 0.8 for example.   I have read through the...

firstly I'm new to Openlayers/JS as a whole and fairly inexperienced with programming in general so there might be other problems with my code that I'm not aware of.   I am using the latest version of Openlayers (5.3.0).  My program currently...

I'm trying to add a VectorLayer to an existing TileLayer, so I can place ol.geom.Point to mark places of interest.  Originally this worked how I wanted - the points of interest were drawn on the TileLayer exactly where they should.  Since then I&...

I would like to use the latest version of OpenLayers (5.3) in small project. The requirements are:   no Node.js - I will be running thing on the site hosted on IIS, simple HTML files scripts need to be written in TypeScript ES5   I've read a lot...

I have a working map generated by this code:  // create the map with the proper center var map = new ol.Map({         controls: ol.control.defaults().extend(             [new ol.control.ScaleLine()]         ),         view: new ol.View({...

I'm trying to check if a point is within a Polygon. This is my function:  import { containsXY } from 'ol/extent';  isInside(polygon, longitude, latitude) {     polygon = JSON.parse(polygon); // Polygon is originally = JSON.stringify([[lon...

I have a openlayers map which has draw interaction. When user starts drawing a linestring on the map, the portion of linestring drawn should look different than what the user would draw next.  In brief when user drops a point on the map, the line til...

I have added ol package to my vue-cli project through      npm install ol   but the map doesn't load. there is no error and I just find an empty div in the result source.  here is my code =>  the html part :  <div id="map-container"...