[OpenLayers-Users] How to get information on clicking on a
polygon
kusum
kusum at infobase.in
Mon Mar 17 03:07:56 EDT 2008
Hi Eric
Thanks for replying back.
I am able to fetch information from database. But the problem is that I am
not able to highlight the polygon on map.
To highlight it on map I need all the points in it. But the database I have
in postgresql has field goem and I am not getting how to convert the goem
field into coordinates so that I can get points to highlight the polygon on
map.
Please suggest any function if there in postgres to convert the goemetry
field to cordinates or any other method if exists to highlight polygon using
goemetry.
Regards
Kusum
--------------------------------------------------
From: "Eric Lemoine" <eric.c2c at gmail.com>
Sent: Monday, March 17, 2008 12:29 PM
To: "kusum" <kusum at infobase.in>; <users at openlayers.org>
Subject: Re: [OpenLayers-Users] How to get information on clicking on a
polygon
> Hi. Is your polygon layer a vector (WFS for example) layer? If so you
> don't need GetFeatureInfo or anything like that since the data
> associated with your polygon can be retrieved while getting the
> polygon coords from the server. If your polygon layer is a WMS layer
> you indeed can use GetFeatureInfo. Cheers,
>
> 2008/3/14, kusum <kusum at infobase.in>:
>> Hii All
>>
>> I am trying to get information about a polygon from postgresql database
>> when
>> user clicks on it.
>> I have read get Feature info example in openlayers, but was not able to
>> understand how they were fetching the data from database.
>>
>> Can somebody please explain a bit or if there is any other example
>> available.
>>
>> Thanks in advance.
>> Kusum
>>
>>
>>
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