[OpenLayers-Users] RegularPolygon radius document questions

[杨华杰]

eg. I want to draw a circle on the map, the radius is 4KM.


On Tue, Jan 29, 2013 at 4:11 PM, 杨华杰 <yhjhoo at gmail.com> wrote:

> can set up it individual? This is a global setting.
>
>
> On Mon, Jan 28, 2013 at 6:45 PM, 杨华杰 <yhjhoo at gmail.com> wrote:
>
>> nice, thank you very much, it help me a lot
>>
>>
>> On Mon, Jan 28, 2013 at 4:38 PM, Grégory COLLIN <gcollin at v3d.fr> wrote:
>>
>>> Le Mon, 28 Jan 2013 08:15:48 +0100,
>>> 杨华杰 <yhjhoo at gmail.com> a écrit :
>>>
>>> > Hi
>>> >
>>> > I have a question about the document.
>>> >
>>> > Here is the URL:
>>> >
>>> http://dev.openlayers.org/docs/files/OpenLayers/Handler/RegularPolygon-js.html#OpenLayers.Handler.RegularPolygon.setOptions
>>> >
>>> >
>>> >
>>> > The
>>> > radius<
>>> http://dev.openlayers.org/docs/files/OpenLayers/Handler/RegularPolygon-js.html#OpenLayers.Handler.RegularPolygon.radius
>>> >
>>> > explain as {Float} Optional radius in map units of the regular
>>> > polygon.
>>> >
>>> >
>>> > What's the unit? kilometer/meter/mile/NM?
>>> >
>>> >
>>> > Regards,
>>> > Hua Jie
>>>
>>> Hi Hua Jie,
>>>
>>> The units requested could be defined in the map object.
>>>
>>> So here is the code sample i used :
>>>
>>>   var map = new OpenLayers.Map({
>>>        div: "map",
>>>        theme: null,
>>>        units: 'm',
>>>        projection: "EPSG:900913",
>>>        controls: [
>>>          new OpenLayers.Control.Navigation({zoomWheelEnabled: false}),
>>>          new OpenLayers.Control.NavToolbar({zoomWheelEnabled: false}),
>>>          new OpenLayers.Control.PanZoomBar(),
>>>          new OpenLayers.Control.ScaleLine()]
>>>     });
>>>
>>>
>>> So you can add the unit you want in this constructor.
>>> according to the documentation :
>>>
>>> http://dev.openlayers.org/releases/OpenLayers-2.6/doc/apidocs/files/OpenLayers/Map-js.html#OpenLayers.Map.units
>>>
>>> you can specify : ‘degrees’ (or ‘dd’), ‘m’, ‘ft’, ‘km’, ‘mi’, ‘inches’.
>>>
>>> Enjoy,
>>>
>>> Best regards.
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/openlayers-users
>>>
>>
>>
>
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