Steve,
Could you possibly give us the link to your live (but wonky) demo
instead of the wonky images...? Just curious.
On 9/14/06, Steve Hall <[EMAIL PROTECTED]> wrote:
Hi Ed,
Thanks for this. I may check my label columns in the database for NULLs
and replace them with an empty string ('') instead. It looks like a
classic 'null' issue doesn't it?
Yup - zoom in, zoom out, pan etc and the garbage generally just disappears,
or changes its 'content'. Often the angle is the same (suspicious) but
sometimes not..... There aren't any features on the angles so i'm not sure
if it's a labelling issue or not. Plus the problem only occurs about 1 in
20 or so map draws so is kind of hard to get a definite problem case.
Checkout these additional ones :
http://demo.mercatorgeosystems.co.uk/tmp/1158243616324003.png
And just to prove it's not all CA.... ;-)
http://demo.mercatorgeosystems.co.uk/tmp/1158244089248601.png
http://demo.mercatorgeosystems.co.uk/tmp/1158244147717403.png
Thanks Ed,
Steve
Take a
Ed McNierney wrote:
Steve -
Well, just about anything in California is a little odd.....
Are you saying that if you simply refresh the image and re-draw the exact
same map you'll see this line of text change? That's puzzling. I would
speculate that it's a (garbage) text label for some garbage feature -
there's some feature that's defective in both location and label (attributes
messed up) and that feature is being labeled.
The first thing I'd try is to eliminate layers from the image, testing until
the garbage goes away. That could identify the offending layer; if there
are multiple classes in that layer, use the same system to identify which
class it is. Then see if that says anything helpful.
- Ed
Ed McNierney
President and Chief Mapmaker
TopoZone.com / Maps a la carte, Inc.
73 Princeton Street, Suite 305
North Chelmsford, MA 01863
[EMAIL PROTECTED]
(978) 251-4242
________________________________
From: UMN MapServer Users List
[mailto:[EMAIL PROTECTED] On Behalf Of Steve
Hall
Sent: Thursday, September 14, 2006 9:22 AM
To: [email protected]
Subject: [UMN_MAPSERVER-USERS] Strange map draw issue
Hi All,
I've been using Mapserver for a while now, in a variety of situations, but
am seeing a slightly strange behaviour in one of my setups. Basically i'm
getting a line of 'garbage' being drawn across the generated map image.
A sample of what I mean is here :
http://demo.mercatorgeosystems.co.uk/tmp/1158239461914994.png
There is no road feature or other line that should be there, and if I
redraw the map the line of garbage will either disappear or change in either
length or 'content'. It doesn't appear all the time, but certainly enough
to be annoying.
My MapServer version is 4.8.1, running with Apache 1.3.31 on Fedora Core 4.
I've got several other MapServer based configurations on this setup and
they're all working fine. The data source in question is an Oracle 10g
(10.1) database which is also used for other systems and seems fine.....
Weird eh? Any suggestions much appreciated!
Thanks,
Steve H
--
Steve Hall
Technical Consultant
Mercator GeoSystems Ltd
Tel (UK) : +44 (0) 114 235 3409
Tel (US) : +1 (562) 735 3541
Fax : +44 (0) 114 235 3409
Mobile : +44 (0) 771 828 6323
Email : [EMAIL PROTECTED]
Web : www.mercatorgeosystems.com
Skype : mercatorgeosystems
--
Puneet Kishor http://punkish.eidesis.org/
Nelson Inst. for Env. Studies, UW-Madison http://www.ies.wisc.edu/
Open Source Geospatial Foundation https://edu.osgeo.org/
