Pass information from CGI through Map file to OVF file and do a SQL Where

[Todd Birkenholtz]

Thank you Frank.
I have tried the %variable% method to get the variable into the Map file but my OVF file is external to the MAP file.

I can not get the variables into the OVF file

Now if I only could get the OVF inline with the MAP file I think I could get it to work.


Any time I uncomment the inline method I get an error. but when I use the external method it works.

Any suggestions?

Thanks again.


my map file is like this....

###################################################
#
# NodeID
#NodeID

    LAYER
  NAME nodeid
  TYPE POINT
  CONNECTIONTYPE OGR
  CONNECTION "c:\inetpub\wwwroot\maptest\office.ovf "
  #CONNECTION'<OGRVRTDataSource>
  #    <OGRVRTLayer name="MyPoints">
  #    <SrcDataSource>ODBC:xxx/xxxr at xxx,xxx</SrcDataSource>
  #
  #  <SrcSQL>SELECT lat,lon from WANINFO where NodeID ='officeABC'</SrcSQL>
  # <GeometryType>wkbPoint</GeometryType>
  # <GeometryField encoding="PointFromColumns" x="lon" y="lat"/>
  #</OGRVRTLayer>
  #</OGRVRTDataSource>'

  DUMP TRUE # for WFS only
  DATA "MyPoints"
  STATUS on
  CLASS

       symbol "circle2"
       size 10
       color 0 0 0
  END
END
###################################################
SYMBOL
  NAME "circle2"
  TYPE ellipse
  FILLED false
  POINTS
    1 1
  END
END

my office.ovf file is like this.....
<OGRVRTDataSource>
       <OGRVRTLayer name="MyPoints">
        <SrcDataSource>ODBC:xxx/xx at xx,xx</SrcDataSource>

        <SrcSQL>SELECT lat,lon from WANINFO where NodeID ='officeABC'</SrcSQL>
        <GeometryType>wkbPoint</GeometryType>
        <GeometryField encoding="PointFromColumns" x="lon" y="lat"/>
      </OGRVRTLayer>
  </OGRVRTDataSource>



Frank Warmerdam <fwarmerdam at gmail.com> wrote:
On Fri, 14 Jan 2005 13:03:01 -0800, Todd Birkenholtz
wrote:
>
>
> Is there any way to pass more information through the CGI URL ?
>
> I want to be able to use that variable and pass it to my OVF file and do a
> SQL "Where" to get that locations Longitude Latitude. Then I will place a
> symbol at that location.
>
> http://localhost/mapserver.exe?map=c:\inetpub\wwwroot\maptest\wanmap.map&mode=map&layer=states&place=xmarksthespot
>
>
> I think the OVF will look something like this....
>
>
> ODBC:user/user at things,stuff
>
> SELECT lat,lon from secretplaces where
> thespot='???Information from CGI ???'
> wkbPoint
>
>
>

Todd,

I would suggest you read over:
http://mapserver.gis.umn.edu/doc44/mapfile-reference.html#variablesubstitution

I have never tried it myself, but I think it is what you want. Also, you will
need to be quite careful about "escaping" stuff if you have odd values.

Best regards,
--
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush | Geospatial Programmer for Rent


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