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<DIV dir=ltr align=left><SPAN class=792420516-14092006><FONT face=Arial
color=#0000ff size=2>Steve -</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=792420516-14092006><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=792420516-14092006><FONT face=Arial
color=#0000ff size=2>I actually was asking if the output changed if the SAME map
was refreshed - don't zoom in, out, or pan, just refresh the image/reload the
page. Does the same image request always return the same
image?</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=792420516-14092006><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=792420516-14092006> <FONT
face=Arial color=#0000ff size=2>- Ed</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=792420516-14092006>
<P><FONT size=2>Ed McNierney<BR>President and Chief Mapmaker<BR>TopoZone.com /
Maps a la carte, Inc.<BR>73 Princeton Street, Suite 305<BR>North Chelmsford,
MA 01863<BR>ed@topozone.com<BR>(978) 251-4242 </FONT></P></SPAN></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> Steve Hall
[mailto:steve.hall@mercatorgeosystems.co.uk] <BR><B>Sent:</B> Thursday,
September 14, 2006 10:39 AM<BR><B>To:</B> Ed McNierney<BR><B>Cc:</B>
MAPSERVER-USERS@LISTS.UMN.EDU<BR><B>Subject:</B> Re: [UMN_MAPSERVER-USERS]
Strange map draw issue<BR></FONT><BR></DIV>
<DIV></DIV>Hi Ed,<BR><BR>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?
<BR><BR>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. <BR><BR>Checkout these additional ones :<BR><BR><A
class=moz-txt-link-freetext
href="http://demo.mercatorgeosystems.co.uk/tmp/1158243616324003.png">http://demo.mercatorgeosystems.co.uk/tmp/1158243616324003.png</A><BR><BR>And
just to prove it's not all CA.... ;-)<BR><BR><A
class=moz-txt-link-freetext
href="http://demo.mercatorgeosystems.co.uk/tmp/1158244089248601.png">http://demo.mercatorgeosystems.co.uk/tmp/1158244089248601.png</A><BR><A
class=moz-txt-link-freetext
href="http://demo.mercatorgeosystems.co.uk/tmp/1158244147717403.png">http://demo.mercatorgeosystems.co.uk/tmp/1158244147717403.png</A><BR><BR>Thanks
Ed,<BR>Steve<BR><BR><BR>Take a <BR>Ed McNierney wrote:
<BLOCKQUOTE cite=mid4BF377919225F449BB097CB76FFE9BC83DE181@ptolemy.topozone.com
type="cite">
<META content="MSHTML 6.00.2900.2963" name=GENERATOR>
<DIV dir=ltr align=left><SPAN class=892111514-14092006><FONT face=Arial
color=#0000ff size=2>Steve -</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=892111514-14092006></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=892111514-14092006><FONT face=Arial
color=#0000ff size=2>Well, just about anything in California is a little
odd.....</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=892111514-14092006></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=892111514-14092006><FONT face=Arial
color=#0000ff size=2>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.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=892111514-14092006></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=892111514-14092006><FONT face=Arial
color=#0000ff size=2>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.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=892111514-14092006></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=892111514-14092006>
<FONT face=Arial color=#0000ff size=2>- Ed</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=892111514-14092006>
<P><FONT size=2>Ed McNierney<BR>President and Chief Mapmaker<BR>TopoZone.com /
Maps a la carte, Inc.<BR>73 Princeton Street, Suite 305<BR>North Chelmsford,
MA 01863<BR><A class=moz-txt-link-abbreviated
href="mailto:ed@topozone.com">ed@topozone.com</A><BR>(978) 251-4242
</FONT></P></SPAN></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> UMN MapServer Users List [<A
class=moz-txt-link-freetext
href="mailto:MAPSERVER-USERS@LISTS.UMN.EDU">mailto:MAPSERVER-USERS@LISTS.UMN.EDU</A>]
<B>On Behalf Of </B>Steve Hall<BR><B>Sent:</B> Thursday, September 14, 2006
9:22 AM<BR><B>To:</B> <A class=moz-txt-link-abbreviated
href="mailto:MAPSERVER-USERS@LISTS.UMN.EDU">MAPSERVER-USERS@LISTS.UMN.EDU</A><BR><B>Subject:</B>
[UMN_MAPSERVER-USERS] Strange map draw issue<BR></FONT><BR></DIV><FONT
size=-1><FONT face=Arial>Hi All,<BR><BR>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.<BR><BR>A sample of what I mean is here
:<BR><BR><A class=moz-txt-link-freetext
href="http://demo.mercatorgeosystems.co.uk/tmp/1158239461914994.png">http://demo.mercatorgeosystems.co.uk/tmp/1158239461914994.png</A><BR><BR>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.<BR><BR>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.....<BR><BR>Weird eh? Any suggestions much
appreciated!<BR><BR>Thanks,<BR>Steve H<BR></FONT></FONT><BR><PRE class=moz-signature cols="72"> </PRE></BLOCKQUOTE><BR><BR><PRE class=moz-signature cols="72">--
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 : <A class=moz-txt-link-abbreviated href="mailto:steve.hall@mercatorgeosystems.com">steve.hall@mercatorgeosystems.com</A>
Web : <A class=moz-txt-link-abbreviated href="http://www.mercatorgeosystems.com">www.mercatorgeosystems.com</A>
Skype : mercatorgeosystems
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