AttributeFilter does not import values from source

Question

This has happened so many times that I have lost count: I try to import values from the source in AttributeFilter. After the process is complete, it gives me nothing!

The latest time is trying to get them from an IFC file.

I select fme_feature_type in the dropdown,
hit the import button,
the feature types show up
I select all of them
I select fme_feature_type and check the use format attributes
It thinks a second, and....
NOTHING

This has happened with dwgs as well. fme_feature_type is exposed in the reader. I tried selecting other value types in the wizard to no avail.

What is going on? I have attached screenshots to illustrate.

Thanks

FeatureTypeImportIssue1 FeatureTypeImportIssue2 FeatureTypeImportIssue3 FeatureTypeImportIssue4 FeatureTypeImportIssue5

daveatsafe · Accepted Answer

Hi @lorenrouth​,When extracting the attributes from AutoCAD, please Click the Parameters button after choosing the DWG reader in the Import Wizard. If you want to use Extended or Block attributes, please select the Group Entities option 'Attribute Schema'. This will do a schema scan of the DWG file. If you want to use format attributes (ie. autocad_*), open the Schema Attribute section near the bottom of the Parameters dialog, and select the desired format attributes in Additional Attributes to Expose.Extracting the attributes from IFC is more difficult, since most of the properties are stored as traits on the geometry rather than attributes. You may want to try the IFC with Data Views reader, using the data view 'Building Elements with Hierarchy'. This will provide the most common properties as exposed attributes.

lorenrouth · Answer

Hi @lorenrouth​,When extracting the attributes from AutoCAD, please Click the Parameters button after choosing the DWG reader in the Import Wizard. If you want to use Extended or Block attributes, please select the Group Entities option 'Attribute Schema'. This will do a schema scan of the DWG file. If you want to use format attributes (ie. autocad_*), open the Schema Attribute section near the bottom of the Parameters dialog, and select the desired format attributes in Additional Attributes to Expose.Extracting the attributes from IFC is more difficult, since most of the properties are stored as traits on the geometry rather than attributes. You may want to try the IFC with Data Views reader, using the data view 'Building Elements with Hierarchy'. This will provide the most common properties as exposed attributes.Hi @daveatsafe​,Thanks for the reply.  With DWGs, I end up using AutoCAD_Layer attribute as the feature type (same value).  But with IFC, the attributes I want are not geometry traits.  They are listed just like the rest of them:  I will give the Data Views reader a shot, but it makes no sense to me, especially when just before finishing the Import Wizard, they give a list of exactly what  I am looking for (see screenshot 3 from original question).  Why bother prompting me to select the feature types and then say, "naw"?  Surely you would agree that could be improved upon?Best,Loren,