Parent Topic: <A href="http://www.pcigeomatics.com/cgi-bin/pcihlp/GDB|Supported+File+Formats">Supported File Formats</a><hr>
<H4>OGDI (Open Geospatial Datastore Interface)</H4>
GeoGateway supports OGDI which is a similar technology to GeoGateway. Some
of the formats supported by OGDI are VMAP, UVMAP CIB, CADRG, ADRG and DCW.
However ADRG is supported directly by GeoGateway and it is more efficient
to read DCW files using DCWRead. OGDI was developed by Global Geomatics
(see <a href="http://www.globalgeo.com/)">http://www.globalgeo.com/)</a> and is maintained as an open exchange
technology by the III (Information Interoperability Institute) (see
http://132.156.30.81/iii/ and http://gdal.velocet.ca/projects/ogdi/).
OGDI differs from GeoGateway in that it can also function as a client-
server technology. The OGDI supports client-server where a direct RPC
connection is possible and Global Geomatics supports an extension where there
is a firewall between client and server. The remote OGDI data may be either
a file or a server such as CubeSTOR from CubeWerx (see http://www.cubewerx.com/).<p>
To open a remote OGDI data server, in the file selector click on 'Choose Other' 
and pick OGDI from the 'driver' list. Then enter a URL in the layer field. For
example enter &quot;gltp://www.globalgeo.com/vrf/i:/scenery/data/vm2alv2/texash&quot;. The
format of the URL is &quot;gltp:&quot; specifying &quot;Geographic Library Transfer Protocol&quot;.
After the double slash is the URL of the server(www.globalgeo.com). After the
single slash is the OGDI driver name (vrf). The final part is the data name
(i:/scenery/data/vm2alv2/texash). For remote CubeSTOR data the URL could be
&quot;gltp://alpha.cubewerx.com/cwogdi/test/test@CWDEV&amp;attributes&quot;. For local data
the URL could be &quot;gltp:/rpf/f:/polk/cib5/rpf&quot;, i.e. there is no server name
in this case. Opening CIB data (or any other OGDI local data) by specifying the
URL is equivalent to opening the file as specified for CIB data above. There is 
an optional part to the OGDI URL specifying the actual layer to open. For example
&quot;gltp://alpha.cubewerx.com/cwogdi/demo/demo@demo&amp;attributes::Line:POLBNDL_1M@BOUNDARIES&quot;
specifies to open the line layer POLBNDL_1M from the BOUNDARIES coverage (group
of layers) from the CubeSTOR server. The error &quot;Unable to connect to dispatcher gltpd&quot;
means that OGDI could not make a two-way connection to the server.
<P>
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Parent Topic: <A href="http://www.pcigeomatics.com/cgi-bin/pcihlp/GDB|Supported+File+Formats">Supported File Formats</a><br>
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