I have a Gas & Diesl Generator Set. Want to provide the appropriate OmniClass Number and Title.
OmniClass Table 23 indicates the number should be 23-35.11.15.
Revit inidcates the number should be 23-80.10.11.
Please help explain how to resolve this type of discrepancy.
Additionally, how do you add numbers and title that are not currently available within Revit.
Solved! Go to Solution.
You can edit the file shown below to modify and add OmniClass Numbers and Titles as required.
C: \ Program Files \ Autodesk \ Revit MEP 2012 \ OmniClassTaxonomy.txt
I am not very familiar with this, but I've seen mention of the OmniClass numbers being wrong in Revit, but I don't know much else.
There is a link here : https://getsatisfaction.com/seek/topics/omniclass_
that discusses this, apparently the codes are based on an old draft version. We may find that to many libraries now have the wrong codes embedded in them to allow for the change of the provided txt files.
If Autodesk is listening perhaps they should build an update function into the supplied update families script. This function could remap the current codes to the latest omniclass codes? It may have to be a second parameter gets added as there will be users out there with code based around the current parameter and values.
Someone out there may have a good solution to this if so am all ears on this one as the current option of using defunct numbers has no relevance in a "BIM" authoring software. IMO
Or am I just missing the point?
In the OmniClasstaxonomy.txt file there are a series of numbers after the text description such as:
188.8.131.52.24 Environmental Controls 4 -2001140
184.108.40.206.27 Lighting Controls 4 -2008087
In order to update to 2010 OmniClass... what significance do these numbers represent and what do you recommend to do to handle this.. re updating?
I will attach the txt file for your review. for you
The first number, as in the 4 in this case, shows the depth of the classification beyond the top of table 23:
e.g. 23.10 is 1, 23.10.05 is 2, 23.10.05.10 is 3, etc
The next number, as in -2000151 refers to the Revit category that is applicable to this sort of element.
-2000151 = Generic models
-2000011 = Walls
I am unaware of any reference detailing this list of numbers and corresponding categorys but if you leave it blank it shouldn't cause issues, even with the incorrect value to the actual family category there seems to be no issues in some very limited testing.
I got my hands on a 2010 omniclasstaxonomy.txt file and it does not work..... the description does not show in revit 12 or 11
Can anyone tech it and find out why?
The negative numbers do not exist
Are you replacing the correct file?
I replaced the file in C:\Users\<Username>\AppData\Roaming\Autodesk\Revit
Note if you are using this file and any Revit families that referenced the original file there will be no Omniclass title as there is no corresponding Omniclass number.
I have just read the above debate and am trying to classify my own omniclass numbers.
Would it not be possible to write a program that would read the csv of the omniclass spreadsheet and write it into a Revit format; or maybe have a second omniclass 'lookup' as an add-in. You could have two omniclass files. The one Revit needs to classify walls and the 'proper' one. If a disparity is found, then the addin could update the Revit file.
How much did this software cost?