I have a question according to the CityGML reader in FME.
E.G. I have two attributes "Class" and "Function". In my example there is no "Class" attribute in the file. Therefore, in FME the attribute related to class exists but is <missing>.
The second attribute I have is" Function". It exists in my CityGML file but not valid(there is no value)! <bldg:function></bldg:function>
Now, I am trying to find such attributes which are empty but the problem is in the case such as function, FME gives <missing> as value and neither null nor empty.
My question is, why does FME treat both of the cases in the same manner "<missing>"? and is there any way to distinguish these two different case?
I appreciate your help in advance.
Best regards,
Mani