problem with tiled layer

[Ed McNierney]

David -
 
It's dangerous to assume that problems are caused by bugs in the
software rather than in your own code <g>!
 
I don't have any reason to think there's a MapServer problem - could you
please post the MAP file you're using?  Thanks.
 
     - Ed
 
P.S. I have a large number of county-based tiled vector data sets
indexed and being served by MapServer for the entire US, so I'm rather
certain this scenario can be made to work.  You might want to think
through your application design, however, since simply trying to index
everything is not necessarily the best solution.  The primary goal of
performance tuning should be to make sure that data that won't be used
in the output map isn't touched or even considered wherever possible.
Ed McNierney
President and Chief Mapmaker
TopoZone.com / Maps a la carte, Inc.
73 Princeton Street, Suite 305
North Chelmsford, MA  01863
ed at topozone.com
(978) 251-4242 


________________________________

From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On
Behalf Of Hunter, David - St. Louis Park, MN
Sent: Tuesday, August 02, 2005 4:41 PM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: [UMN_MAPSERVER-USERS] problem with tiled layer



I'm using Mapinfo files for vector data, some of the layers are
county-based.  I created tiled index layers for these county-based
layers (my demo consists of four counties in North Carolina) using the
ogrtindex utility.  When the map straddles the border between two
counties, the tiled layers do not appear in one of the counties (the
roads, etc. stop at the county border).  Panning either direction so
that the map no longer straddles the border makes the missing layers
reappear.  I assume this is a bug in GDAL/OGR or mapserver (CGI version
4.4.1).  Has anybody else seen this problem?  Is there a workaround, or
do I need to rethink my use of tiled layers?  The application will need
to cover the entire U.S., so effective indexing of the data is a
requirement.

 

David S. Hunter
Sr. Software Engineer
Fidelity National Geographic Solutions
division of Fidelity National Financial
5353 Gamble Drive, Suite 201
St. Louis Park, MN 55416
* Email: david.hunter at fnf.com
' Phone: 952.542.1440 ext. 256
* Fax: 952.542.3859

 

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