[OpenLayers-Users] draw rectangle over the map
Iswaria
iswaria.k at ifpindia.org
Fri Jul 2 05:46:56 EDT 2010
Hi,
Now I have drawn the rectangle.
One more query, Before drawing a rectangle, I want to clear/remove the
rectangles, if any.
How to do it?
Thanks.
Sveen Atle Frenvik (Geomatikk IKT) [via OSGeo.org] wrote:
Re: [OpenLayers-Users] draw rectangle over the map
On 07/02/2010 10:58 AM, Iswaria wrote:
> Hi all,
>
> In this link http://openlayers.org/dev/examples/custom-control.html ,
the
> rectangle we draw by pressing the shift key disappears, as soon as
we
> complete drawing the rectangle.
>
> I want to display the rectangle, what user has drawn.
>
> What should be done to display the rectangle.
>
> Thanks,
> Iswaria
>
It seems to me like the box handler returns a set of pixels describing
the box, and that the code added gets the coordinates for this.
I guess a simlpe approach is the use the coordinates and construct a
polygon geometry and then add this as a feature to a vector layer on the
map, and then apply a style to make it look like the box.
-atle
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Atle Frenvik Sveen
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Geomatikk IKT AS
tlf: 45 27 86 89
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