[Geomoose-users] select_custom.php and select_followup service- selecting too many things when table closed

[Bistrais, Bob]

OK, I see that it appears to be selecting on the start point of the
original layer.  So, when we close the table, it will select line
segments connected to the start point of that line segment but not the
"to" end.  Selecting on the center of the line segment would probably
work better for my situation.  Is there an option for doing that on line
segments?

 

________________________________

From: Eli Adam [mailto:eadam at co.lincoln.or.us] 
Sent: Monday, October 24, 2011 8:22 PM
To: Bistrais, Bob
Cc: geomoose-users at lists.osgeo.org
Subject: Re: [Geomoose-users] select_custom.php and select_followup
service- selecting too many things when table closed

 

Bob, 
    

On Mon, Oct 24, 2011 at 12:36 PM, Bob Bistrais <Bob.Bistrais at maine.gov>
wrote:

I'm building a GeoMoose app which uses a line shapefile as my main data
layer.  I've been modifying the select_custom.php and related code to
work with it.  I got things to work correctly with a basic select.  When
I click the button to open the table of results, it opens properly.  So
far so good.  Here's where things get strange:

 

When I click the red x button to close the table, the result displays in
the Results tab again, but now, adjacent line segments are selected.  If
I open the table again, attributes for those new segemtns are displayed.
Close the table again, and even more adjacent segments get selected.


I think that it does an intersect of (center or perhaps end?) points
back with the original layer.  In the some data cases, this selects
additional features.  I think that you found it worked correctly for
non-overlapping polygons, try it with polygons that overlap and you
should observe the same behavior I think.  This could perhaps be
addressed by passing feature IDs, JSON, GeoJSON or something else
between the table and the Results tab.


Eli
 

	 

	As best as I can tell, closing the table triggers the
buffered_select_followup service.  I tried setting the buffer distance
to 0 in mapbook.xml, but that didn't do it.  I have not seen this issue
before when working with polygon data.  Does anyone have any insight as
to how I can keep it from selecting more line segments?

	
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