[OpenLayers-Users] openlayer markers located at the wrong place

[Mario Danelli]

Dear Maven,

> Once you move the map, the marker will be located at the wrong place, why?

As I see from your example, the marker is located in a wrong position at
start-up. It's placed near LAT 0 and LON 0.

You should use the TRANSFORM method to change from projection WGS 1984
(tipically used) to projection Mercator (used in OpenStreetMap tiles). See
the following code for a brief presentation:


------------------> BEGIN

// transform from WGS 1984
var fromProjection = new OpenLayers.Projection("EPSG:4326"); 

// to Spherical Mercator Projection
var toProjection = new OpenLayers.Projection("EPSG:900913"); 

new OpenLayers.LonLat(YOUR_MARKER_LON, YOUR_MARKER_LAT)
.transform(fromProjection, toProjection);

<------------------ END

Regards

Mario Danelli