Rich,
That is exactly what I am looking for. I am also now using getLength() to give me the length of the resultant linestring in metres which is my map coordinate system. Perfect. Many thanks. Much appreciated. Regards, Donald From: Richard Greenwood [mailto:[email protected]] Sent: 22 January 2013 02:02 To: Donald Kerr Cc: OpenLayers Subject: Re: [OpenLayers-Users] Display Radius When Creating Circle with DrawFeature 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 No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.2890 / Virus Database: 2639/6048 - Release Date: 01/21/13 From: Richard Greenwood [mailto:[email protected]] Sent: 22 January 2013 02:02 To: Donald Kerr Cc: OpenLayers Subject: Re: [OpenLayers-Users] Display Radius When Creating Circle with DrawFeature 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 No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.2890 / Virus Database: 2639/6048 - Release Date: 01/21/13
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