[Mapserver-dev] Re: Mapserver: resolved a big problem

[Daniel Morissette]

The fix Ed is talking about was in version 3.6.4, so the first thing to
try would be an upgrade to at least 3.6.4.  Why version are you using
BTW?

If the problem persists with version 3.6.4 or 3.6.5 then it is quite
likely that your extents would be larger than the area of validity of
your projection and reprojecting the BBOX produces unpredictable
results.  Please try to provide:
- A GetMap URL that reproduces the problem, all we need really is the
SRS and BBOX parameters.  (You should be able to get that from the
access_log on your WMS server)
- The bounding box of a few objects that disappear from the Map with
this GetMap request.
- 10 bonus points if you can send a small dataset and mapfile that
reproduces this  ;)

Hopefully with this information someone will be able to reproduce and
isolate the problem.

Oh, and BTW if you can file all that in bugzilla then you get another 10
bonus points!  ;)

Daniel


Ed McNierney wrote:
> 
> Steve -
> 
> It's hard to tell from the description, but this sounds related to the WMS bug I reported back in October and Daniel fixed.  Using the same SRS tag caused the server to hang.  Is this old code?  It's been fixed in CVS since late October.
> 
>         - Ed
> 
> 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
> 
> -----Original Message-----
> From: Steve Lime [mailto:steve.lime at dnr.state.mn.us]
> Sent: Monday, March 31, 2003 6:17 PM
> To: Michael.Dreesmann at LVERMAP.brandenburg.de
> Cc: mapserver-dev at lists.gis.umn.edu
> Subject: [Mapserver-dev] Re: Mapserver: resolved a big problem
> 
> Wierd. I'm wondering if the tests to compare projections are a bit off.
> I'll forward this to
> the developers list to see if it rings true with anyone. Glad you found
> a workaround.
> 
> Steve
> 
> Stephen Lime
> Data & Applications Manager
> 
> Minnesota DNR
> 500 Lafayette Road
> St. Paul, MN 55155
> 651-297-2937
> 
> >>> "Dreesmann, Michael" <Michael.Dreesmann at LVERMAP.brandenburg.de>
> 03/27/03 09:25AM >>>
> Hallo Steve,
> 
> I resolved a big problem (for us). If you dont know the resolution,
> this
> information
> is a smell help for a quicker debugging.
> 
> We are using the UMN mapserver since 2 years on several servers in our
> intranet.
> Since a few month we had a big problem. The mapserver wont display
> ploygons
> completely.
> Some one would be shown, some one not.
> 
> Today I found the resolution:
> If you use the tag SRS in the GetMap request (e.g. EPSG:25833) and
> your
> basic SRS in the shape file is 25833 too,
> you had the problem. If you delete the SRS tag from the request all
> polygons
> will be displayed completely.
> 
> Now the cascading service works perfect with a low of UMN mapservers.
> 
> Regards
> Michael Dreesmann
> 
> +-LGB--------------------------------------------------------------------
> | state mapping agency of Brandenburg
> | head of spatial data center
> | HTTP: www.geobasis-bb.de
> | Post: Heinrich-Mann-Allee 103, 14473 Potsdam
> | Mail: michael.dreesmann at lvermap.brandenburg.de
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