[OpenLayers-Users] GET mouse position

[Tim Schaub]

Hey-

Gregor Mosheh wrote:
> Tara wrote:
>> Is it possible to capture the mouse position by a click event and send it to
>> another page via GET (or POST or whatever)? I would like to have users click
>> on the map to fill in long and lat in <input /> fields.
> 
> Sure, happens all the time. Bind an event handler to the map, and create 
> a callback function to handle the event. Here's an example:
> 
> map.events.register('click', map, handleMapClick);
> 

Note that if you want notification of single clicks but not two 
notifications about double clicks, or if you only want notifications 
about clicks that do not include a drag, you're better off using our 
click handler (rather than the browser's click event).

See the click handler example for use:
http://openlayers.org/dev/examples/click-handler.html

Tim

> function handleMapClick(evt) {
>    // don't select the point, select a square around the click-point
>    var clickbuffer = 18; //how many pixels around should it look?
>    var sw = map.getLonLatFromViewPortPx(new 
> OpenLayers.Pixel(evt.xy.x-clickbuffer , evt.xy.y+clickbuffer) );
>    var ne = map.getLonLatFromViewPortPx(new 
> OpenLayers.Pixel(evt.xy.x+clickbuffer , evt.xy.y-clickbuffer) );
> 
>     // open a popup window, supplying the coords in GET
>      var url = click_url + '?bbox='+sw.lon+','+sw.lat+','+ne.lon+','+ne.lat;
>      window.open(url,'popup');
> }
> 
>