MapTools.org

[Chameleon] Locate widget

Paul Spencer spencer@dmsolutions.ca
Thu, 11 Mar 2004 07:25:25 -0500
For the record, if anyone was going to do this, you would probably want 
to look at the mapscript querybyattribute function.

Cheers,

Paul

Gianluigi Nozza wrote:

> I'am wondering, because this capability is a basic function in every GIS
> application...
> So I don't think I am the first looking for it.
> Anyway I am very happy that the task is not so difficult (of course for
> programmers)
> so I hope to find answers to the question in a near future.
> Still waiting for help here and in the mapserver user list....
> 
> ----- Original Message -----
> From: "Paul Spencer" <pagameba@magma.ca>
> To: "Gianluigi Nozza" <gianluigi.nozza@tiscali.it>;
> <chameleon@lists.maptools.org>
> Sent: Wednesday, March 10, 2004 2:17 PM
> Subject: Re: [Chameleon] Locate widget
> 
> 
> 
>>Gianluigi,
>>
>>there is currently no widget that does this.  The Locate widget
>>specifically uses web services that provide a lookup API (and the
>>services that it currently implements are all for Canadian stuff).
>>
>>I do not believe that there are any plans to implement a widget of this
>>kind, although it would probably not be too difficult and it would be
>>kind of cool.
>>
>>Cheers,
>>
>>Paul
>>
>>Gianluigi Nozza wrote:
>>
>>
>>>Hi
>>>I am trying to incorporate locate capabilities in a sample application.
> 
> The
> 
>>>demo I have set up with the unvaluable help of  Bart van den Eijnden,
> 
> has a
> 
>>>locate widget, that works fine. I have also seen that the test demo
> 
> included
> 
>>>in Chameleon 1.0, had the same feature.
>>>Anyway I have discovered, that the widget works in a different manner in
>>>respect to what I was thinking about.
>>>At first, I believed that locate widget, was looking for occurrence of a
>>>"user string" inside the dbf of the data directory (inside the data of
> 
> the
> 
>>>shape files); checking this assumption I found that locate widget
> 
> interface
> 
>>>with an external web service and not locally. Infact it does not work if
> 
> you
> 
>>>are not connected in Internet.
>>>This capabilitity is really beyond my needs, which are indeed much more
>>>simpler.
>>>I would like to implement  locate capabilities in my applications, on
> 
> the
> 
>>>local sides, i.e. ask the user for a feature to find, and then locate
> 
> that
> 
>>>feature inside the dbf in the data directory, than zoom out to the
> 
> extent of
> 
>>>the retrived (and user selected) feature.
>>>Do I have a widget working in a similar way, there are examples
> 
> implementing
> 
>>>such functionalities ?
>>>
>>>Thanks a lot
>>>
>>>
>>>_______________________________________________
>>>Chameleon mailing list
>>>Chameleon@lists.maptools.org
>>>http://lists.maptools.org/mailman/listinfo/chameleon
>>>
>>
>>--
>>  -----------------------------------------------------------------
>>|Paul Spencer                           spencer@dmsolutions.ca    |
>>|-----------------------------------------------------------------|
>>|Applications & Software Development                              |
>>|DM Solutions Group Inc                 http://www.dmsolutions.ca/|
>>  -----------------------------------------------------------------
>>
>>
> 
> 
> 
> _______________________________________________
> Chameleon mailing list
> Chameleon@lists.maptools.org
> http://lists.maptools.org/mailman/listinfo/chameleon
> 

-- 
  -----------------------------------------------------------------
|Paul Spencer                           spencer@dmsolutions.ca    |
|-----------------------------------------------------------------|
|Applications & Software Development                              |
|DM Solutions Group Inc                 http://www.dmsolutions.ca/|
  -----------------------------------------------------------------



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