[Mapserver-users] Displaying x-y Datasets using PHP/Mapscript

[Paul Spencer]

Jan,

mapserver is apparently bound to ogr directly and does not use all the 
functions exported by gdal11.dll so it is not sufficient to replace 
gdal11.dll, you must also have a mapserver that is built against the 
correct version of gdal.  ogrinfo may work when mapserver doesn't and 
this is a symptom of this.

Paul

Jan Vietmeier wrote:

> Hi,
> Thanks a lot for the Help. In the meantime I am able to dynamically add
> points to a layer using PHP/Mapscript, but the method suggested by Zak seems
> to be the best solution for my purpose.
> 
> Now I am wading through the manual
> http://mapserver.gis.umn.edu/cgi-bin/wiki.pl?VirtualSpatialData and
> everythink is working fine including the step "Testing" ... the virtual data
> file ... "using ogrinfo". The implementation into Mapserver fails with the
> error Message "... [MapServer Error]: msOGRFileOpen(): Open failed for OGR
> connection `D:\www\data\shapes\punktquelle.ovf'. File not found or
> unsupported format ...".
> 
> In my opinion, this can have two reasons:
> 
> 1. My version of ogrinfo is from the openev_fw-Program downloaded at
> http://www.remotesensing.org and my mapserver-version is the binary-version
> from DM Solutions (mapserver-4.0-win32-php4.3.2.zip from 26-Aug-2003). Maybe
> my mapserver-version don't supports virtual layer.
> 
> How can I find out if my gdal11.dll supports the ogr-vrt format (does
> gdalxx.dll contains ogr?)
> 
> 2. There is someting wrong with my mapfile or punktquelle.ovf-file. Here
> some code-snipps:
> The virtual layer file:
> 
> <OGRVRTDataSource>
>     <OGRVRTLayer name="tbl_einsatz">
>         <SrcDataSource>ODBC:@myeinsatz</SrcDataSource>
>  	     <SrcTable>tbl_einsatz</SrcTable>
> 	     <GeometryType>wkbPoint</GeometryType>
> 	     <GeometryField encoding="PointFromColumns" x="x" y="y"/>
>     </OGRVRTLayer>
> </OGRVRTDataSource>
> 
> The Mapfile:
> 
>   LAYER
>     NAME "MyVirtualLayer"
>     TYPE POINT
>     CONNECTIONTYPE OGR
>     CONNECTION "D:\www\polizei\data\shapes\punktquelle.ovf" # the name and
> path to the virtual.ovf file, relative to shapepath may work?
>     DATA "tbl_einsatz" # the name of the OGRVrtLayer
>     STATUS ON
>     LABELITEM "Einsatz" #may need to use table.name or just name depending
> on your OVF file.
>     PROJECTION
>       "init=epsg:31468"
>     END
>     CLASS
>       SYMBOL 1
>       SIZE 6
>       COLOR 255 0 0
>       LABEL
> 	SIZE MEDIUM
> 	TYPE BITMAP
> 	COLOR 0 0 0
>       END
>     END
>   END
> 
> Does anyone have an idea?
> 
> Tanks,
> 
> Jan
> 
> 
> Jan Vietmeier, Diplom-Geograph
> Im Fichtenhain 18
> 51069 Köln
> 
> Tel.  +49 (0)221 9468252
> Mobil +49 (0)178 3744854
> Fax.  +49 (0)221 9468251
> 
> 
> 
> _______________________________________________
> Mapserver-users mailing list
> Mapserver-users at lists.gis.umn.edu
> http://lists.gis.umn.edu/mailman/listinfo/mapserver-users
> 

-- 
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|Paul Spencer                           spencer at dmsolutions.ca    |
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|Applications & Software Development                              |
|DM Solutions Group Inc                 http://www.dmsolutions.ca/|
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