msQueryByRect Problem

[Lowell.Filak]

thomas portier writes: 

> Hello, 
> 
> It's not very clean but it works : 
> 
> $result=@$layer->queryByRect($rectObj);
>   if ($result == MS_SUCCESS) { 
> 
> if other ideas, i'm interesting 
> 
> Thomas Portier
> http://www.sig-pyrenees.net 
> 
> ----- Original Message ----- 
> From: "G" <dave at DAVEMITCH.COM>
> To: <MAPSERVER-USERS at LISTS.UMN.EDU>
> Sent: Wednesday, November 16, 2005 3:01 PM
> Subject: [UMN_MAPSERVER-USERS] msQueryByRect Problem 
> 
> 
>> I am trying to implement a Query By Rectangle tool in a mapserver app. 
>>
>> I am using the nquerymap mode to return me an image of selected records 
>>
>> When there are records inside the imgext, then it highlights them properly
>> using the "Hilite" option in QueryMap parameter. (so far so good) 
>>
>> However, where there are no records, I get the warning
>> "msQueryByRect(): Search returned no results. No matching record(s) found.
> "
>>
>> but...I want to get just a normal image back with no selected records. 
>>
>> Any ideas how I can do this? 
>>
>> (N.B. I have tried appending a CGI parameter "map_web_empty" and set this
>> to call the mode map option with same parameters, but this stops my nquery
>> map from working)

Thomas, 

For a normal map you could just set the mapextent (rectobj) for the map 
before doing a draw. There is no need to use a query if you're not doing a 
query. 

Lowell