This Blog is dedicated to all things to do with Building Information Modeling.
I'll be blogging about challenges that I come across as BIM Manager as well as points of interest that are related to BIM. Blogs on tips and technical "How-too's" to help you out with creating your BIM models correctly.
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Wednesday 21 November 2012
Green Building Studio DOE-2 Error (Doh! error)
I have been playing with Green Building Studio (GBS) recently as we will start analysing our buildings during the design development stage.
On my test project whenever I ran the gbXML file I kept receiving the following error message:
I googled what a DOE-2 error and found this:
The error is caused by a very tiny polygon that Revit is writing to the gbXML file. The vertices of the polygon have so many significant digits that they are being rounded off and the simulation engine (DOE-2) is reading them a duplicate vertices.
In plain English, somewhere in your model are very tiny surfaces or openings. These could be any number of things, such as ventilation openings, piping, etc.
You need to simplify your model and remove such tiny surfaces or openings. This will not cause a loss of simulation accuracy.
Which is great information... but doesn't help me any as I cant find the tiny surfaces or openings! I stripped out the model and I still couldn't run the gbXML file! I was at a point where I was going to edit the gbXML file and delete the erroneous data!
Until I realised I can use a solution I have used on other Revit projects where some objects are corrupt. Copy clip your model out to a new file. Basically select everything in a 3D view, copy to clipboard, open a new blank project and paste your model into it.
you'll have to re-create your spaces but that's easy and then export your gbXML file and your in business, the new gbXML file runs perfectly in GBS.
Excellent..... now whenever I run into this issue I have a solution...
I'm going to use this solution for every problem I have now.....
Burn my toast in the morning... copy clip and try again!