[Mapserver-users] OGR unable to access datasource

Thu Jan 29 16:21:12 PST 2004

Actually we have not ruled out whether my version of mapserver supports VRT
or not.  How would I check?  Is there a binary somewhere that supports it
for sure?  I can test that one.

============================================
Joost van Ulden
Programmer/Analyst
Natural Resources Canada / Ressources naturelles Canada
Geological Survey of Canada / Commission geologique du Canada
101 - 605 Robson Street / 101 - 605 rue Robson
Vancouver, B.C. / Vancouver (C.-B.)
V6B 5J3
Office/Bureau:  604.666.7525
fax/telecopieur: 604.666.1124
jvanulde at nrcan.gc.ca
============================================

> -----Original Message-----
> From: Paul Spencer [mailto:pagameba at magma.ca] 
> Sent: Thursday, January 29, 2004 1:49 PM
> To: Van Ulden, Joost
> Cc: Mapserver-Users at Lists. Gis. Umn. Edu 
> (mapserver-users at lists.gis.umn.edu)
> Subject: Re: [Mapserver-users] OGR unable to access datasource
> 
> 
> I wonder if this could be an IIS issue?  IIS runs as a different user 
> normally, and has considerably reduced privileges in order to 
> block up 
> potential security issues.  Can you possibly set up Apache 
> and try with 
> Apache?  If it works with Apache then we can be sure it is an IIS 
> configuration issue and focus on figuring out why it won't work.
> 
> The other possibility is that your mapserver does not support 
> VRT, did 
> we rule that out yet?
> 
> Paul
> 
> Van Ulden, Joost wrote:
> 
> > Hi Tyler,
> > 
> > Here is the output from ogrinfo.  Looks like its working, however I 
> > still unable to get mapserver to connect.  I have tried putting the 
> > <OGRVRTDataSource> directly in the mapfile CONNECTION and still get 
> > the same
> > error: 
> > 
> > msDrawMap(): Image handling error. Failed to draw layer named 
> > 'OGRPoints'.
> > msOGRFileOpen(): OGR error. Open failed for OGR connection `
> > ODBC:foo/foo at mydsn,Desc_story Desc_story wkbPoint WGS84 '. 
> File not found or
> > unsupported format. 
> > 
> > Looking forward to your response.
> > 
> > 
> > C:\OpenEV_FW\bin>ogrinfo 
> > C:\inetpub\wwwroot\MS_DEMO\mapserver\data\ogr.ovf
> > ERROR 4: Update access not supported for VRT datasources.
> > Had to open data source read-only.
> > INFO: Open of `C:\inetpub\wwwroot\MS_DEMO\mapserver\data\ogr.ovf'
> > using driver `VRT' successful.
> > 1: story (Point)
> > 
> > 
> > C:\OpenEV_FW\bin>ogrinfo 
> > C:\inetpub\wwwroot\MS_DEMO\mapserver\data\ogr.ovf
> > story ERROR 4: Update access not supported for VRT 
> datasources. Had to open
> > data source read-only.
> > INFO: Open of `C:\inetpub\wwwroot\MS_DEMO\mapserver\data\ogr.ovf'
> > using driver `VRT' successful.
> > .
> > .
> > .
> > OGRFeature(story):87
> >   desc_id (String) = 400E2174-65BF-3224-7CEF493349368AE7
> >   group_id (String) = 0
> >   comm_id (String) = DE9E2A07-B0D0-EA24-1BD6282422D24117
> >   user_id (String) = 4A335096-7ADD-419B-9E16-1995F233D3F8
> >   elev (Real) =                  0
> >   units (String) =
> >   rtype (String) =
> >   mu (String) =
> >   ldesc (String) =
> >   min (String) =
> >   lmu (String) =
> >   struct (String) =
> >   txt (String) =
> >   snum (String) =
> >   purp (String) =
> >   sfeat (String) =
> >   azi (Real) =                  0
> >   dip (Real) =                  0
> >   stdesc (String) =
> >   name (String) =
> >   sdesc (String) =
> >   story_x (Real) = -1993136.4272429
> >   story_y (Real) = 471899.80462409
> >   share (Integer) = 0
> >   release (Integer) = 1
> >   date (String) = 2004-01-22 16:08:11.000
> >   POINT (-1993136.427 471899.805 0.000)
> > 
> > ============================================
> > Joost van Ulden
> > Programmer/Analyst
> > Natural Resources Canada / Ressources naturelles Canada Geological 
> > Survey of Canada / Commission geologique du Canada 101 - 605 Robson 
> > Street / 101 - 605 rue Robson Vancouver, B.C. / Vancouver (C.-B.)
> > V6B 5J3
> > Office/Bureau:  604.666.7525
> > fax/telecopieur: 604.666.1124
> > jvanulde at nrcan.gc.ca
> > ============================================
> > 
> > 
> > 
> >>-----Original Message-----
> >>From: Tyler Mitchell [mailto:TMitchell at lignum.com]
> >>Sent: Thursday, January 29, 2004 9:46 AM
> >>To: Van Ulden, Joost
> >>Subject: Re: [Mapserver-users] OGR unable to access datasource
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>>  LAYER
> >>>    NAME OGRPoints
> >>>    TYPE POINT
> >>>    CONNECTIONTYPE OGR
> >>>    CONNECTION "c:\inetpub\wwwroot\MS_DEMO\ogr.ovf"
> >>>    DATA "Desc_story"
> >>>    STATUS default
> >>>    CLASS
> >>>      COLOR 255 0 0
> >>>    END
> >>
> >>I just asked for your layer definition, I see it here in your
> >>old email, so nevermind. Are you sure about the text case for 
> >>the "DATA" parameter?  Send me your output from ogrinfo!
> >>
> > 
> > _______________________________________________
> > Mapserver-users mailing list Mapserver-users at lists.gis.umn.edu
> > http://lists.gis.umn.edu/mailman/listinfo/mapserver-users
> > 
> 
> -- 
>   -----------------------------------------------------------------
> |Paul Spencer                           spencer at dmsolutions.ca    |
> |-----------------------------------------------------------------|
> |Applications & Software Development                              |
> |DM Solutions Group Inc                 http://www.dmsolutions.ca/|
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> 