[OpenLayers-Users] drawing a circle in openlayers

[Imran Rajjad]

@remi...my problem is simple, I`m trying to draw a circle by giving
centre lat/long and radius in meters.

in my first email I mentioned that I`m doing this already in native
javascript through basic trignometry but I was looking for somthing in
openlayers

@Ralph..hmm ok buddy.. I`ll try that out,appreciate your help

regards,
Imran

On Thu, Aug 26, 2010 at 5:50 PM, remi <remiglobal at gmail.com> wrote:
> Hi imran,
> i don't really get your problem. From your first email, you state that you
> want to figure out the coordinates of the vertices in lat,long format. Is
> this what you want?
> me a noob here, but i'm trying to understand the prob.
> remi
>
> On Thu, Aug 26, 2010 at 8:29 PM, Imran Rajjad <rajjad at gmail.com> wrote:
>>
>> hmmm .. but my calculated radius problem is still there.. though i
>> managed to calculate the vertices using geodetic distance
>>
>>
>>
>> On Thu, Aug 26, 2010 at 5:20 PM, Ralph Dell <RDell at catawbacountync.gov>
>> wrote:
>> > It will give you a polygon with 40 sides. While not technically a circle
>> > it works very well at looking like a circle.
>> >
>> > Ralph Dell, GISP
>> > GIS Dept.
>> > Catawba County, NC
>> >
>> >
>> > -----Original Message-----
>> > From: Imran Rajjad [mailto:rajjad at gmail.com]
>> > Sent: Thursday, August 26, 2010 8:16 AM
>> > To: Ralph Dell
>> > Cc: users at openlayers.org
>> > Subject: Re: [OpenLayers-Users] drawing a circle in openlayers
>> >
>> > hi,
>> >
>> > yea I checked this example but I`m not sure what is 40? is it a pixel
>> > value or some default unit.?
>> >
>> > regards,
>> > Imran
>> >
>> > On Thu, Aug 26, 2010 at 5:01 PM, Ralph Dell <RDell at catawbacountync.gov>
>> > wrote:
>> >> Have you tried the polygon control?
>> >>
>> >> // set up the polygon control, for drawing a circle
>> >>  polyOptions = {sides: 40};
>> >>  polygonControl = new OpenLayers.Control.DrawFeature(circleLayer,
>> >>                OpenLayers.Handler.RegularPolygon,
>> >>                {handlerOptions: polyOptions});
>> >>        map.addControl(polygonControl);
>> >>
>> >> ..
>> >>
>> >> polygonControl.handler.setOptions({radius: radiusx});
>> >> polygonControl.handler.activate();
>> >>
>> >> Ralph Dell
>> >>
>> >> -----Original Message-----
>> >> From: users-bounces at openlayers.org
>> >> [mailto:users-bounces at openlayers.org]
>> >> On Behalf Of Imran Rajjad
>> >> Sent: Thursday, August 26, 2010 7:32 AM
>> >> To: <users at openlayers.org>
>> >> Subject: [OpenLayers-Users] drawing a circle in openlayers
>> >>
>> >> Hi list,
>> >>
>> >> I`m trying to draw a circle geometry with a radius of 30m, currently
>> >> I`m calculating lat/long of each vertex from the centre , i was hoping
>> >> if this could be done through openlayers
>> >>
>> >> regards,
>> >> Imran
>> >>
>> >> --
>> >> I.R
>> >> _______________________________________________
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>> >>
>> >
>> >
>> >
>> > --
>> > I.R
>> >
>>
>>
>>
>> --
>> I.R
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>
>



-- 
I.R