[OpenLayers-Dev] Custom Control Box Retain on Mouse Up

[Moiz Bhukhiya]

Hello there,

I am trying to use custom control to draw a rectangular box and get the
dimension after drawing a box on the map. My problem is I want to retain the
box on mouse up instead of the box disappearing. Right now, it displays the
alert box when I mouse up.

Here is what I am doing now:

<code>
var control = new OpenLayers.Control();
                OpenLayers.Util.extend(control, {
                    draw: function () {
                        // this Handler.Box will intercept the
shift-mousedown
                        // before Control.MouseDefault gets to see it
                        this.box = new OpenLayers.Handler.Box( control,
                            {"done": this.notice},
                            {keyMask: OpenLayers.Handler.MOD_SHIFT});
                        this.box.activate();
                    },

                    notice: function (bounds) {
                        var ll = map.getLonLatFromPixel(new
OpenLayers.Pixel(bounds.left, bounds.bottom));
                        var ur = map.getLonLatFromPixel(new
OpenLayers.Pixel(bounds.right, bounds.top));
                        alert(ll.lon.toFixed(4) + ", " +
                              ll.lat.toFixed(4) + ", " +
                              ur.lon.toFixed(4) + ", " +
                              ur.lat.toFixed(4));
                    }
                });
                map.addControl(control);

</code>

What I need is when I press shift key I should be able to draw a box on the
map and then resize it if required and then click a button to get the
dimensions(alert box).

I appreciate any help,
Thanks a lot!
Moiz
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.osgeo.org/pipermail/openlayers-dev/attachments/20100726/46b8c2e6/attachment.html