[OpenLayers-Users] Drawing a circle/callbacks/zoom in scale factors

[David Potts]

Thanks Chris, thats just what I want.

Good point about the projection issue.

Dave.
> On Wed, Feb 11, 2009 at 10:46:03AM -0000, David Potts wrote:
>> Hi List,
>>
>> I known this question been asked before, but how do you draw a circle
>> using a google map background?
>>
>> My first attempt uses a vector feature with a style object, draws the
>> circle looks great.
>
> What is your goal? Something that looks like a circle on a mercator map
> is not actually going to be a 'circle' on the ground, so if that's what
> you're concerned about, then this doesn't make sense.
>
> If this is what you want anyway, then the function you're looking for is:
>
>   http://dev.openlayers.org/apidocs/files/OpenLayers/Geometry/Polygon-js.html#OpenLayers.Geometry.Polygon.createRegularPolygon
>
>   http://openlayers.org/dev/examples/regular-polygons.html
>
> the latter is demonstrating using the REgularPolygon drawing control,
> but that uses the createRegularPolygon method internally.
>
> Regards,
> --
> Christopher Schmidt
> MetaCarta
>


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