[ka-Map-users] Query how to

[Paul Spencer]

Doesn't it expect query coords in image coordinates?  How would this  
work in a tiled universe?  Seems like the ideal solution though

Paul

On 5-Dec-05, at 5:55 PM, Steve Lime wrote:

> Or just use the straight MapServer CGI application.
>
>>>> Paul Spencer <pspencer at dmsolutions.ca> 12/05/05 4:48 PM >>>
> The query capability just gives you the geographic coordinates that
> the user wants to query.  You will need to:
>
> 1) make an XmlHttpRequest call to the server to request a query of
> your data.  the call() function in xhr.js can do this for you.
>
> 2) write a PHP (or some other) script that actually takes the
> geographic coordinates and queries your data.  Depending on your
> data, you could approach querying in a number of ways.  MapScript is
> probably the most generic way, but if you have a postgis dataset it
> probably makes more sense to query it directly
>
> 3) return results to the client page that can be interpreted by
> javascript.  I have typically done this by returning javascript that
> gets eval'd by the client.  You could also return an XML document and
> navigate it using the DOM.
>
> Cheers
>
> Paul
>
> On 5-Dec-05, at 5:26 AM, Bahi AL_Fkharany wrote:
>
>> Please can one tell me how to get data about specific
>> point i click or tell me how to get real vertices of
>> specific point.
>>
>>
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> |Paul Spencer                           pspencer at dmsolutions.ca   |
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|Paul Spencer                           pspencer at dmsolutions.ca   |
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|Applications & Software Development                              |
|DM Solutions Group Inc                 http://www.dmsolutions.ca/|
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