[mapguide-users] Custom FDO Provider

Chris White chris.white at keytraffic.com
Thu Jun 8 15:07:56 EDT 2006

I am attempting to extract spatial data stored in our own format within
a SQL Server, with just read capabilities to start with. It should not
be too much of an issue mapping to fdo because out format is (loosely)
based on GML 2. Any info on which fdo interfaces I need to implement
would be appreciated.
Thanks in advance,


From: Traian Stanev [mailto:traian.stanev at autodesk.com] 
Sent: 07 June 2006 18:25
To: users at mapguide.osgeo.org
Subject: RE: [mapguide-users] Custom FDO Provider

It certainly is possible and actually not all that hard to write your
own FDO provider. It depends largely on what data you are trying to
access via that provider and how easy it is to map to FDO objects and
APIs. It also depends on if you need to be able to modify data or just
read it for display purposes. If you only need the latter, then you only
need to implement a small-ish subset of the FDO API. If you decide to
give it a shot, I can tell you which FDO interfaces you absolutely need
to implement as a minimum in order to make it work with MapGuide. FYI,
the smallest functioning feature provider I've seen so far is around
2-3000 lines of code (in a single source file), so you are looking at at
least that much work.


From: Chris White [mailto:chris.white at keytraffic.com] 
Sent: Wednesday, June 07, 2006 11:14 AM
To: users at mapguide.osgeo.org
Subject: [mapguide-users] Custom FDO Provider

Has anyone attempted to write there own fdo provider yet as I'm about to
undertake this task and wondered if you had any advice / where you
started? Most of the documentation seems to be based around using an fdo
provider not writing one.
Thanks in advance

Chris White
Software Architect


Key Traffic Systems Ltd.

Ardencroft Court
Ardens Grafton
B49 6DP
Main: +44(0)8451 303040
Fax: +44(0)8451 303141
Mailto: chris.white at keytraffic.com
<mailto:%20chris.white at keytraffic.com> 
Web: www.keytraffic.com <http://www.keytraffic.com/> 


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