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It looks like your question is about AutoCAD Map ObjectARX .NET API. You might want to try forum groups for AutoCAD Map 3D->AutoCAD Map 3D Developer for better AutoCAD Map specific responses.
Anyway, you may want to look at AutoCAD Map ObjectRAX .NET API's Autodesk.Gis.Map.ImportExport namespace for a solution. That is, you could try to write code import the data from the SDF file of older version and then export the data imported to SDF file, which is created by AutoCAD Map 2013, thus must be in a newer (if not newest) version of SDF file, I figured. The key point is to determine if AutoCAD Map 2013 can import data from very old version of SDF file.
If you have downloaded AutoCAD Map ObjectARX SDK, then you can find sample code on Autodesk.Gis.ImportExport namespace.
The other approach might be to try to connect AutoCAD Map to SDF as map layer (manaully or use AutoCAD Map Gis platform API) to see if the old version of SDF can be connected or not.
To be honest, I only touched SDF file with AutoCAD Map very occassionally (since AutoCAD Map 2009) and have never worked with SDF of that old version. So, my suggestion may not work, but you can give it a try.
Did you noticed that I mentioned AutoCAD Map ObjectARX .NET API? You can VB.NET or C#, of course. Also, for Map's GIS platform API, it is .NET only API.
In previous reply I have pointed out that AutoCAD Map has Map .NET API (i.e. only available in AutoCAD Map, not vanilla AutoCAD) that has ImportExport namespace, which include classes that does operation like manual Map lmport/export (i.e. command MapImport/MapExport/Map2SDF...).
However, since you are talking SDF v2, while AutoCAD Map .NET API was only available since AutoCAD Map 2006, I am not sure the .NET API would work or not. But you can try at least.
The Map platform API (available since AutoCAD Map 2009/10) can connect AutoCAD Map to SDF via FDO, but not SDF v2. It must be upgrade to V3 or later ASAIK.
I could have a try if you attach a sample SDF v2 file here.
It looks like that AutoCAD Map's managed API (bother ObjectARX .NET API and Platform API) is not able to handle SDF v2 file. It has to be converted to V3 or later first.
If you have to do it programmatically, you have to managed to import the SDF v2 file into AutoCAD Map. Once the data gets into AutoCAD Map, then you can easily export it as later version of SDF file.
One way I could think of is:
1. Manually start MAPSDFIN to bring up "SDF Import" dialog box and fill the importing information.
2. Click "Save..." to save an importing profile.
3. Use SendStringToExecute() to execute command "-MAPSDFIN" with proper arguments, which specify which SDF file to inport, the importing profile to use, to get the SDF v2 file imported.
Hi scluna,
Map 3D doesn't have any public API to export Map objects to old SDF2.0 format.
You need to use either MAP2SDF command in AutoCAD Map 3D or you can use SDF Loader.
SDFLoader is included in SDFTookKit, and it can be downloaded from http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=4307350&linkID=9240658
BTW - I see you are using 2013 release. So I would suggest to check something here :
Open your DWG file in Map 3D 2013 and use the UI tool / command MAP2SDF to export in SDF2.0 and then check if all the objects / properties are exported correctly. Which application do you want to use them? Is it MG6.5 or older ?
If you are satisfied with UI export result, you can try using the SDFToolkit and see if you are able to get the same result. One thing you need to understand here. SDFTookKit is very old technology and not updated in last 6/7 years where as Map 3D has changed quite a lot enabling FDO and native data from various data sources. I never tried this backward compatibility checking, but there could be some issues.
Thanks,
Partha
Partha Sarkar
Developer Technical Services
Autodesk Developer Network
