[OpenLayers-Dev] how to overlay jpg and shapefile

[Jachym Cepicky]

Hi,
arjun dheer píše v Po 25. 02. 2008 v 17:07 -0800:
> Hi,
> I am new to openlayers. I need some help regarding overlaying of
> shapefile over a jpg. What I am trying to do is display a jpg using
> openlayers and then overlaying and displaying the shapefile containing
> data for the area shown in the jpg. Please let me know how such a
> thing is possible? Also, is there an example showing such a
> functionality.
> -Arjun

No, it is not possible. OpenLayers are not able to handle Shapefiles
directly. You have to either setup mapserver [1] or convert shapefile to
some xml format, such as GML (KML, GeoRSS) [2].

For the jpeg part, you can use OpenLayers.Layer.Image class [3], which
is working nice.

[1] http://mapserver.gis.umn.edu
[2] http://www.gdal.org
[3] http://dev.openlayers.org/docs/files/OpenLayers/Layer/Image-js.html
-- 
Jachym Cepicky
e-mail: jachym.cepicky gmail com
URL: http://les-ejk.cz
GPG: http://www.les-ejk.cz/pgp/jachym_cepicky-gpg.pub
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