OpenLayers

OpenLayers

Tips and tricks

Mes points ne sont pas visibles sur la carte

See default ol.style of ol.layer.Vector

Stroke needs some shape of feature such as circle, polygon, etc,. simple ol.geom.point doesn’t have a shape. that’s why nothing appears when you set style only with stroke

If you change your style like below, it will work as you expect:

var style = new ol.style.Style({
  image: new ol.style.Circle({ // add this
    stroke: new ol.style.Stroke({
      color: 'red'
    }),
    radius: 5
  }),
});

• Moveend sample
• Update a feature’s coordinates/geometry
• Detecting map changes
• how to get the current zoom in openlayers
• Add feature manually to a vector layer
• Clear features in a vector layer
• Rotate marker Image

How to add marker to user defined image how to add markers with OpenLayers 3

How to get the current viewport of the map

https://openlayers.org/workshop/en/vectortile/map.html

https://gis.stackexchange.com/questions/251491/adding-a-feature-to-openlayers-vector-source

In openlayers 4, I am able to get the layer of each selected feature like this: (Im not sure if this works in OL3)

var infoClicker = map.on('click', function(evt) {
    map.forEachFeatureAtPixel(evt.pixel,
        function(feature, layer) {
            var idLayer = layer.get('myLayerID');