Hi Michelle,

> Could the cell polygon be dropped because FME is reading the 
> igds_level as 0 and the writer doesn't know where to put them? 

That could be - but the level for a cell header is usually 0; it's the
level for the elements that matters. 

I wonder if the cells are actually named cells? Looking at the
documentation it seems that donuts are formed by nested cells - one
inside the other. However, FME only creates donuts when the root cell
is unnamed. If it has a name then "no donuts are formed in case the
unnamed cell contained overlapping polygons". See FME Readers and
Writers Manual > Design File R/W > Feature Representation > Cells

If this is the case then I think you'll have to expand the cells and
then try to create donuts out of them within Workbench. You may find
that exploding the cells leaves a format attribute that will tell you
which elements came from which cell, and that will certainly help.

If this isn't the case then I'd suggest you send a copy of your data
to [EMAIL PROTECTED] and ask them to look into it for you.

Regards,

Mark

Mark Ireland, Product Support Engineer
Safe Software Inc. Surrey, BC, CANADA
[EMAIL PROTECTED] http://www.safe.com
Solutions for Spatial Data Translation, Distribution and Access

--- In [email protected], "Michelle McCahon" <[EMAIL PROTECTED]>
wrote:
>
> Mark
> 
> Apologises for my late response but other work has kept me away from
> FME. Thank you for your suggestions to my initial problem, which remains
> unsolved. I took your suggestions into consideration and this is what I
> did.
> 
> To refresh your memory, my workbench file is set up like this:
> 1. source file: dgn (V7) - contains a legend as a cell (this dgn was
> created by FME in an earlier step)
> 2. source file: dgn (V7) - contains polygons (this dgn was created by
> FME in an earlier step)
> 3. source file: dgn (V7) - contains labels (this dgn was created by FME
> in an earlier step)
> 4. output file: dgn (V7)
> All the source files are directly linked to the output dgn, no
> transformers in between. I have used cloner and value mapper together
> and individually without much success (in this case), so I am opting to
> test this as simply as possible.
> 
> 1. To start out, I ran this script and the output dgn contained
> everything - cells, labels and all the polygons (including cell
> polygons) but they were dumped onto level 1. This is a good result but
> not practical as I need to have the polygons and associated labels split
> onto specific separate levels.
> 
> 2. Next I routed the output to FFS and Viewed the output ffs - all the
> data; polygons (including the cell polygons), labels and the cell were
> there - based on your thoughts, this result suggested the IGDS Reader is
> ok. Out of curiosity I did enquiries on the cell polygons and looked at
> the attribute information, noting the following: fme_geometry =
> fme_donut, fme_type = fme_area, igds_level = 0, igds_type = igds_solid.
> 
> 3. Next I switched off the route to FFS, and set the Fanout Feature to
> igds_level on the output dgn. Result: The output dgn included the cell,
> all labels and polygons except for the cell polygons - they were
> dropped, those polygons that did come through were put onto the correct
> levels.
> Could the cell polygon be dropped because FME is reading the igds_level
> as 0 and the writer doesn't know where to put them? Even if I use the
> fme_donut attribute to identify the polygons, how do I get FME to put
> the cell polygons on their correct levels. 
> 
> Note: On the source polygon dgn, I switched the expand named cell option
> to yes: result included the cell polygons but no level structure, with
> expand named cell option to no: result no cell polygons but has level
> structure.
> 
> I am assume the writer is having a problem, any other suggestions would
> be appreciated. 
> 
> Thank you for your time.
> Have a nice day!
> Regards
>  
> Michelle McCahon
>  
> Cartographic Officer
> Land Claims Mapping Unit
> Department of Land Information
>  
> 1 Midland Square Midland
> Western Australia  6056
>  
> Telephone: +61 8 9273 7465
> Fax: +61 8 9273 7615
> Email: [EMAIL PROTECTED]
> 
> -----Original Message-----
> From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of
> mark2atsafe
> Sent: Saturday, 27 May 2006 12:00 AM
> To: [email protected]
> Subject: [fme] Re: Combining DGN's - Dropped polygons
> 
> Hi Michelle,
> The first thing to determine is whether this occurs when reading the
> data or writing it. In the navigation pane (left hand side of
> Workbench) locate the 'Workspace Settings' and set the Destination
> Redirect to redirect to an FFS file. This means that all the data
> being read will get sent to this file (instead of being written to DGN).
> 
> Then open this FFS file in the FME Viewer. How does the data look
> there? If it looks wrong then reading is presumably the problem, if it
> looks OK then it must be in the writing.
> 
> What version of microstation are you using, V7 or V8? Are you
> converting from one version to another? It seems strange to me that
> reading and writing to the same version of the same format would cause
> anything to be lost.
> 
> Anyway - once you determine whether it is reading or writing,
> experiment with the settings - for example the explode cells option.
> Do you have the three files as three different datasets in FME, or
> three files under a single dataset? If they are listed as three
> datasets then you'll have three lots of settings to check.
> 
> Also - try it without the fanout, just to see if it works OK. It
> doesn't provide a solution but it helps us to determine where things
> are going wrong.
> 
> Hope this helps,
> 
> Mark
> 
> Mark Ireland, Product Support Engineer
> Safe Software Inc. Surrey, BC, CANADA
> [EMAIL PROTECTED] http://www.safe.com
> Solutions for Spatial Data Translation, Distribution and Access
> 
> 
> 
> 
> --- In [email protected], "Michelle McCahon" <Michelle.McCahon@>
> wrote:
> >
> > Yes - sorry I forgot to mention that. The fanout feature on igds_level
> > is working because the polygons and the labels that do come through,
> go
> > to their assigned levels.
> > 
> > I have now tried bypassing the Cloner and directly link all the levels
> > to the output but I am getting the same result - the cell polygons are
> > still being dropped.
> > 
> > Thank you for your time.
> > Have a nice day!
> > Regards
> >  
> > Michelle McCahon
> >  
> > Cartographic Officer
> > Land Claims Mapping Unit
> > Department of Land Information
> >  
> > 1 Midland Square Midland
> > Western Australia  6056
> >  
> > Telephone: +61 8 9273 7465
> > Fax: +61 8 9273 7615
> > Email: michelle.mccahon@
> > 
> > -----Original Message-----
> > From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of
> > Martin Olney
> > Sent: Friday, 26 May 2006 1:10 PM
> > To: [email protected]
> > Subject: RE: [fme] Combining DGN's - Dropped polygons
> > 
> > In the destination file have you set fanout to igds_level?
> > 
> > -----Original Message-----
> > From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of
> > lcmu_0306
> > Sent: Friday, 26 May 2006 11:02 AM
> > To: [email protected]
> > Subject: [fme] Combining DGN's - Dropped polygons
> > 
> > Hello FMEr's
> > 
> > I am having a problem combining 3 design datasets, into 1 final 
> > design. The master design datasets contain labels, a cell and 
> > polygons. The master label and polygon datasets will change and I 
> > want those changes to be reflected in the final design in the future. 
> > At the moment I have set up FME to read all 63 levels within the 
> > master datasets.
> > At the moment I have used Cloner to combine the datasets but in the 
> > final design, the level structure is retained but I lose some of the 
> > polygons. The polygons that get dropped are 'cell polygons' 
> > (identified in Microstation as Cell Header Type 2's) ie they have 
> > holes within the external boundaries, all the other 'complex shapes' 
> > are copied through and on the correct levels. Is there a way to 
> > identify these cell polygons? Initially I thought that the type 
> > needed to be specified, ie igds_shape or igds_solid but this didn't 
> > seem to make a difference.
> > Also when I use ValueMapper after Cloner, all the polygons get copied 
> > through, including the cell polygons but I lose the level structure, 
> > everything gets dumped onto level 1.
> > I am confident it can be done but I can't seem to get the right 
> > combination. Any suggestions would be appreciated.
> > Note: using FME Workbench Beta Suite 2006.
> > 
> > Thank you for your time!
> > Have a nice day!
> > Regards
> > Michelle McCahon
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > Get the maximum benefit from your FME, FME Objects, or SpatialDirect
> via
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> 
> Get the maximum benefit from your FME, FME Objects, or SpatialDirect via
> our Professional Services team.  Visit www.safe.com/services for
> details. 
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