Dear Mark,

Thank you very much for your hints.
Actually this question relates another important question to me. (I 
asked similar question before, but still haven't solved the problem.)

FME workbench claims to support AutoCAD .dwg or .dxf. This makes me a 
litte confused.

1. If the .dwg file contains proxy AEC objects, does FME support it?

As I am using Autodesk Architecutre 2007, if i save the data as .dwg 
file, which means the file contains proxy AEC objects. I even could 
not visualize it through FME VIEWER. But if i export it to a new .dwg 
file with all exploded AEC objects, FME view can visualize it.

2. If FME doesn't support proxy AEC objects, how can I keep the 
intelligent object information when I do the transformation?

e.g. Two walls in the same layer are exploded into many polygons, how 
I can distinguish which wall those polygons belong to? I only know 
that all polygons belong to the layer "wall", not "which wall".

That is why I want to try using the extended data for those wall 
polygons to attach more information. But I noticed the rich extended 
data also only works for .dwg with AEC objects. If i export it to a 
new .dwg (in order to make FME work with it), the extended data is 
lost.


Could you please give me more information on those questions?

I could not find similar cases in this mail list. If somebody has 
experiences on it, please do let me know. Lots of thanks to you!

best regards, John 



--- In [email protected], "mark2atsafe" <[EMAIL PROTECTED]> wrote:
>
> My advice would be to inspect the data in the FME Viewer to see what
> attributes the extended data are held in. That should help you
> determine them in Workbench.
> 
> Also, when you create a workspace check the settings button. w/o
> looking at it in Workbench I think there is a setting to group by
> attribute schema. When you do this I think the extended data will be
> exposed as regular attributes.
> 
> Hope this helps
> 
> Mark
> 
> --- In [email protected], "bbs_bbp" <bbs_bbp@> wrote:
> >
> > Dear all,
> > 
> > (FME 2007 built 5038)
> > 
> > In my ACAD file (.dwg), i defined some extended data for 
attributes 
> > information. I want to keep them when I convert them to GML data. 
I 
> > have searched in the mail lists, but could not get very helpful 
> > hints.
> > 
> > In FME help, it mentions it supports extended data, e.g. in 
section 
> > beginning with extended_data{#}.
> > So i tried to create some user attributes in "feature type 
> > properties" of GML dataset, and map the extended_data{#}_xxx to 
> > those attributes. You know, there are many remainders after 
> > extended_data{#}, but i don't know clearly the meaning of each 
one 
> > and don't know where i can find the defined extended data. I 
tried 
> > some of them, but got nothing in GML dataset, except geometries.
> > 
> > Does anyone have experiences for that? Or other ways for keeping 
> > attributes information from ACAD to other formats?
> > 
> > Any comment is much appreciated.
> > 
> > John
> >
>




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