On Wed, Jan 16, 2013 at 3:24 PM, Donald Kerr <[email protected]>wrote:
> Any takers? Help greatly appreciated.**** > > ** ** > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Donald Kerr > *Sent:* 15 January 2013 08:14 > *To:* [email protected] > *Subject:* [OpenLayers-Users] Display Radius When Creating Circle with > DrawFeature**** > > ** ** > > Using the following code,**** > > ** ** > > * myLayer = new OpenLayers.Layer.Vector("My Layer");* > > * myCtrlCirc = new OpenLayers.Control.DrawFeature(* > > * myLayer,* > > * OpenLayers.Handler.RegularPolygon,* > > * {handlerOptions: {sides: 40}}* > > * );***** > > ** ** > > I am creating a circle (40 sided polygon) by mousing down on the map, > dragging the mousing up. After mouseup, the polygon is added to the layer > as a vector feature. This allows me to see the size of the circle as I am > drawing it.**** > > ** ** > > Is there a way to display the radius of the circle in a div as it is being > created? “*sketchmodified” *does not seem to get fired and I cannot think > of a way to get this to work.**** > > ** > I ended up modifying the the OpenLayers RegularPolygon.js to do this, although I imagine that a better JS programmers than myself might be able to extend the method or do something more elegant. In the move: function just before this.modifyGeometry() I added this: if (typeof(displayRadius)==='function') { displayRadius(new OpenLayers.Geometry.LineString([this.origin, point])); } displayRadius() is my function that formats the radius to appropriate units and displays it in a div. HTH, Rich -- Richard Greenwood [email protected] www.greenwoodmap.com
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