Adding custom markers dynamically to map using OpenLayers

Question

I would like to let users add custom markers on a map with a description for each marker. Any tips, links to any tutorials would be really useful.

Answer 1

You can register a function to 'click' event on your map. When the user click on it, the mark is added automatically.

Try something like this:

// 'map' is your map created using new OpenLayers.Map(options)

markers = new OpenLayers.Layer.Markers( "Markers" );
markers.id = "Markers";
map.addLayer(markers);

map.events.register("click", map, function(e) {
      //var position = this.events.getMousePosition(e);
      var position = map.getLonLatFromPixel(e.xy);
      var size = new OpenLayers.Size(21,25);
   var offset = new OpenLayers.Pixel(-(size.w/2), -size.h);
   var icon = new OpenLayers.Icon('images/mark.png', size, offset);   
   var markerslayer = map.getLayer('Markers');

   markerslayer.addMarker(new OpenLayers.Marker(position,icon));

   });

Pretty simple, but I think that you can understand it :)