[maplab-users] Query question

Matt Doggett
Fri, 21 Nov 2003 15:30:36 -0800
I noticed that I have this exact same behavior. Changing the MIN_RECT
appears to have no effect.  I was wondering if you discovered any
solution to this problem? Would be nice to have working queries without
having to drag the mouse all the time.  Having to click-n-drag inside a
polygon to select that polygon seems kind of silly.


>-----Original Message-----
>From: [mailto:maplab-users-
>] On Behalf Of William A. Bronsema, C.E.T.
>Sent: Friday, October 17, 2003 4:36 AM
>To: Post,Richard [NCR]
>Subject: Re: [maplab-users] Query question
>Hi Richard,
>I'm not sure if this will help or not, but FYI -
>There is a constant defined in the globprefs.php file for your
>gmapFactory application that should look something like this (
>In my version it is on line 65):
>define( "MIN_RECT", 5 );
>This constant controls the difference between a "point click" and
>"rectangle select".  Essentially all interactions with the map are
>"rectangle selects".  This constant tells the application the threshold
>at which the user was intending to perform a "point click" (i.e. a tiny
>rectangle) instead of a "rectangle select".
>In the case of querying, if the value is too small then more often than
>not a tiny rectangle query will be performed instead of a point query
>which can lead to confusing results.
>William A. Bronsema, C.E.T.
>Applications Developer
>DM Solutions Group Inc.
>Post,Richard [NCR] wrote:
>> Hello,
>> I have a small problem with my gmapfactory application.  The
>> uses the query function to select points from a shape file.  The
>> is that the query only works when you drag a box over the points (ie.
>> Doing a rectangular query).  When you simply click on the point
>> is selected (ie. The layer does not return any results).  I have
>> tried changing the TOLERANCE and TOLERANCEUNITS in the map file,
>> does not seem to have any effect.
>> Any suggestions would be welcome.
>> Thanks,
>> Richard Post
>> Environment Canada
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