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<p class=MsoNormal>Guys,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I have been able to build a control to freehand digitize a
polygon and then launch a function to use the polygon as a search polygon in a
WFS request. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>This works for me:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>drawControls = new
OpenLayers.Control.DrawFeature(vectorLayer, OpenLayers.Handler.Polygon) ;<o:p></o:p></p>
<p class=MsoNormal> //
extend the drawcontrol with its behavior<o:p></o:p></p>
<p class=MsoNormal> OpenLayers.Util.extend(drawControls,
<o:p></o:p></p>
<p class=MsoNormal> { draw:
function (){<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in;text-indent:.5in'>this.polygon = new
OpenLayers.Handler.Polygon(drawControls,{"done": this.notice}); this.polygon.activate();},<o:p></o:p></p>
<p class=MsoNormal> notice:
function (polygon)<o:p></o:p></p>
<p class=MsoNormal> {<o:p></o:p></p>
<p class=MsoNormal> //
get vertices of polygon into and array of coordinate pairs<o:p></o:p></p>
<p class=MsoNormal> var
polyString = polygon.toString() ;<o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal> //
do whatever with polygon linestring here<o:p></o:p></p>
<p class=MsoNormal style='margin-left:1.0in;text-indent:.5in'>… <o:p></o:p></p>
<p class=MsoNormal> }<o:p></o:p></p>
<p class=MsoNormal> });
<o:p></o:p></p>
<p class=MsoNormal> map.addControl(drawControls);<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I wanted to use the RegularPolygon feature to do the same
but it does not launch the function in the same way after the vector geometry
is successfully created. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>var polyType = 6;<o:p></o:p></p>
<p class=MsoNormal>var rad = ‘’;<o:p></o:p></p>
<p class=MsoNormal>polyOptions = {sides: polyType, radius: rad, angle: 0}<o:p></o:p></p>
<p class=MsoNormal>shapeControl = new
OpenLayers.Control.DrawFeature(vectorLayer, OpenLayers.Handler.RegularPolygon,
{handlerOptions: polyOptions});<o:p></o:p></p>
<p class=MsoNormal> //
extend the shapeControl with its behavior<o:p></o:p></p>
<p class=MsoNormal> OpenLayers.Util.extend(shapeControl,
<o:p></o:p></p>
<p class=MsoNormal> { draw:
function (){<o:p></o:p></p>
<p class=MsoNormal> this.polygon
= new OpenLayers.Handler.RegularPolygon(shapeControl, {"done":
this.notice}); this.polygon.activate();},<o:p></o:p></p>
<p class=MsoNormal> notice:
function (polygon)<o:p></o:p></p>
<p class=MsoNormal> {<o:p></o:p></p>
<p class=MsoNormal> //
get vertices of polygon into and array of coordinate pairs<o:p></o:p></p>
<p class=MsoNormal> var
polyString = polygon.toString() ;<o:p></o:p></p>
<p class=MsoNormal> //
do whatever with polygon linestring here<o:p></o:p></p>
<p class=MsoNormal> … <o:p></o:p></p>
<p class=MsoNormal> }<o:p></o:p></p>
<p class=MsoNormal> });<o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal>In both cases the polygon is created and drawn to the
vectorLayer.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Can anyone see anything obviously wrong with the second
piece of code?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Cheers,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><b><span style='font-size:14.0pt'>Brad Spencer<o:p></o:p></span></b></p>
<p class=MsoNormal>General Manager <o:p></o:p></p>
<p class=MsoNormal>NuMaps<o:p></o:p></p>
<p class=MsoNormal><i>"DemographicDrapes"<o:p></o:p></i></p>
<p class=MsoNormal>www.numaps.com.au<o:p></o:p></p>
<p class=MsoNormal>brad@numaps.com.au<o:p></o:p></p>
<p class=MsoNormal>0404 841 131<o:p></o:p></p>
<p class=MsoNormal>(02)9481 7024<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>"<a
href="http://www.numaps.com.au/numaps/index.cfm/resources/resources/apps4nsw-competition-winner/">DemographicDrapes
wins NSW award</a>"<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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