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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Question:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Does OGR ODBC access to a database table containing X/Y data
work in the standard Debian sarge Mapserver package (as opposed to having to compile
it from the ground up myself)?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Details:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I’ve been happily running the Debian sarge standard package
of Mapserver (version 4.4.1) for a number of months.<span
style='mso-spacerun:yes'> </span>The data sources for this project have
(until now) all been in shapefiles and inline features (passed in via CGI).<span
style='mso-spacerun:yes'> </span>I’m now trying to enlarge the
application to display point data from a MySQL database table containing X/Y
data.<span style='mso-spacerun:yes'> </span>Following the terse but
workable how-to on the Mapserver website, I’ve got ODBC up and running
and verified it all the way through using ogrinfo (from the standard sarge gdal
package) to access the data.<span style='mso-spacerun:yes'>
</span>Unfortunately, my mapserver (and also shp2img) perform a segmentation
fault every time they try to access the ODBC layer, with no indication of what’s
wrong.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>All I’d really like to know is if someone has gotten
this to work (or equally, if someone knows for sure that the standard sarge
package does not have suitable capabilities compiled in, or if it conflicts
with something else etc.) before I set about building the whole mapserver setup
from scratch.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Here’s the test.ovf file (OGR Connection definition),
which as I noted works fine with ogrinfo (the file lives in my SHAPEPATH):<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><OGRVRTDataSource><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><span style='mso-spacerun:yes'>
</span><OGRVRTLayer name='mypoints'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><span style='mso-spacerun:yes'>
</span><SrcDataSource>ODBC:user/password@MySQL</SrcDataSource><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><span style='mso-spacerun:yes'>
</span><SrcSQL>Select * from mypoints where (ptid&lt<span
class=GramE>;100</span>) </SrcSQL><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><span style='mso-spacerun:yes'>
</span><GeometryField encoding='PointFromColumns' x='xcoord' y='ycoord' /><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><span style='mso-spacerun:yes'>
</span><GeometryType>wkbPoint</GeometryType><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><span style='mso-spacerun:yes'>
</span></OGRVRTLayer><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'></OGRVRTDataSource><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Here’s the (very basic) layer definition from the
mapfile – the “circle” symbol is defined and works in other
layers.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>LAYER<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><span style='mso-spacerun:yes'>
</span>NAME "mypoints"<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><span style='mso-spacerun:yes'>
</span>CONNECTIONTYPE OGR<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><span style='mso-spacerun:yes'>
</span>CONNECTION "test.ovf"<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><span style='mso-spacerun:yes'>
</span>DATA "mypoints"<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><span style='mso-spacerun:yes'>
</span>STATUS DEFAULT<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><span style='mso-spacerun:yes'>
</span>TYPE POINT<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><span style='mso-spacerun:yes'>
</span>CLASS<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><span
style='mso-spacerun:yes'>
</span>STYLE<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><span
style='mso-spacerun:yes'>
</span>COLOR 0 0 0<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><span
style='mso-spacerun:yes'>
</span>SIZE 2<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><span
style='mso-spacerun:yes'>
</span>SYMBOL "circle"<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><span
style='mso-spacerun:yes'> </span>END<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><span style='mso-spacerun:yes'> </span>END<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>END<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Any help or advice much appreciated.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Jeremy<o:p></o:p></span></font></p>
<p style='margin:0in;margin-bottom:.0001pt'><font size=2 face="Times New Roman"><span
style='font-size:10.0pt;mso-no-proof:yes'>---<o:p></o:p></span></font></p>
<p style='margin:0in;margin-bottom:.0001pt'><font size=2 face="Times New Roman"><span
style='font-size:10.0pt;mso-no-proof:yes'>Jeremy Raw<o:p></o:p></span></font></p>
<p style='margin:0in;margin-bottom:.0001pt'><font size=2 face="Times New Roman"><span
style='font-size:10.0pt;mso-no-proof:yes'>Transportation Systems Engineer /
City of <st1:City w:st="on"><st1:place w:st="on">Durham</st1:place></st1:City>
/ DCHC MPO</span></font><span style='mso-no-proof:yes'><o:p></o:p></span></p>
<p style='margin:0in;margin-bottom:.0001pt'><font size=2 face="Times New Roman"><span
style='font-size:10.0pt;mso-no-proof:yes'>919-560-4366 ext. 308 / <a
href="mailto:Jeremy.Raw@durhamnc.gov">Jeremy.Raw@durhamnc.gov</a></span></font><span
style='mso-no-proof:yes'><o:p></o:p></span></p>
<p style='margin:0in;margin-bottom:.0001pt'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt;mso-no-proof:yes'> </span><o:p></o:p></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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