[Mapguide_users] Import DWG fails

BradM masonb at dfo-mpo.gc.ca
Tue Jan 9 10:54:13 EST 2007


Andy, do you mean that Studio can convert DWG file format to SDF3? 

Also, are  you recommending for us to create feature class definitions for
the DWG files using autocad first ?



Andy Morsell wrote:
> 
> Brad,
> I do not believe that you will see another direct DWG data provider from
> Autodesk in the near future.  The DWG provider for MapGuide 6.5 proved
> that
> this kind of direct read against a DWG is in most cases simply too slow. 
> I
> think Autodesk's current solution of using Studio to load the data into
> feature or drawing sources is a good one.  The part that needs to be
> worked
> on are tools to do this loading in a more automated, consistent and
> scripted
> fashion so that we can easily keep the MapGuide data in sync with the
> DWG's.
> 
> Regarding feature attributes, if you create feature class definitions in
> your DWG files in Autodesk Map, these transfer very nicely into MapGuide
> when you load the data as feature sources.  But, this does mean if you
> just
> have object data or database links in your DWG's that you will have to
> define feature classes that contain those data definitions.
> 
> Andy 
> 
> -----Original Message-----
> From: mapguide_users-bounces at lists.osgeo.org
> [mailto:mapguide_users-bounces at lists.osgeo.org] On Behalf Of BradM
> Sent: Monday, January 08, 2007 3:23 PM
> To: Mapguide_users at lists.osgeo.org
> Subject: RE: [Mapguide_users] Import DWG fails
> 
> 
> Andy and Jim: Many municipalities use Autocad and will want to connect
> Mapguide to DWG files directly so there is no duplication.  Is there any
> plan to rectify this problem?  Feature attributes are critical such as
> property id, address etc.
> thanks
> 
> 
> 
> Andy Morsell wrote:
>> 
>> There seems to be some major, and known, issues with DETE.  The main 
>> problem I have run into is if you try to load a DWG while having it 
>> automatically creates feature classes on the fly.  This is where it 
>> will often consume all of your memory until it blows up.  One solution 
>> is to create feature definitions in the DWG prior, in which case it 
>> works very well, but this is not going to always be feasible.  If you 
>> have it create drawing sources instead (DWF based layers), it works 
>> very well but then you lose the intelligence of having features and 
>> their related attribute data.
>> 
>> 
>> Andy Morsell, P.E.
>> Spatial Integrators, Inc.
>> http://www.SpatialGIS.com
>> 
>> -----Original Message-----
>> From: mapguide_users-bounces at lists.osgeo.org
>> [mailto:mapguide_users-bounces at lists.osgeo.org] On Behalf Of Jim 
>> O'Leary
>> Sent: Monday, January 08, 2007 2:51 PM
>> To: Mapguide_users at lists.osgeo.org
>> Subject: [Mapguide_users] Import DWG fails
>> 
>> 
>> The Autodesk MapGuide site at
>> http://usa.autodesk.com/adsk/servlet/item?siteID=123112&id=7176643
>> indicates
>> that you can import DWG files. However, when i try to do this with 
>> Studio I soon get the error:
>> 
>> Found when opening C:\Program
>> Files\MapGuideOpenSource\Server\cmn\squamish\cadastral.dwg ...
>> 
>> An error occured.
>> 
>> If I continue, the DETE.exe process eventually uses up all memory and 
>> I must reboot. I'm using MGOS 1.1.0, and am dragging the DWG file into 
>> Studio. I am reluctant to try the same with our MGE server, as it 
>> would likely bring it down.
>> 
>> Any suggestions?
>> 
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