OpenStudio exported gbXML 'exposedToSun' attribute not written
Hello,
When gbXML is exported from OpenStudio Application v1.3.1 (OpenStudio SDK (core) version: 3.3.0) the 'exposedToSun' attribute is not written. Please see below for an example of: (1) OpenStudio Space Surfaces and (2) exported gbXML result.
The 'exposedToSun' attribute description suggests high severity associated with not writing the attribute to exported gbXML. Actual severity has not yet been confirmed through direct analysis.
Questions are as follows:
- Is it typical for OpenStudio to not write the 'exposedToSun' attribute to exported gbXML?
- What might be the outcome(s) of gbXML based analysis without the 'exposedToSun' attribute explicitly set?
Thank you for any insight that the community has to offer.
Please note, background files are available for analysis. However, based on my observations this gripe should be repeatable when any OSM background is exported to gbXML.
-Jake Staub
@Ripcord welcome to Unmet Hours! You should have enough karma points to upload images, but you can also provide links to files via Google Drive, Dropbox, etc. for others to review.
I added some comments to https://github.com/NREL/OpenStudio/is..., it doesn't seem like that attribute is ever written. I don't know what the impact would be, if it is a problem for some workflow it should be easy to add it.
Since my use of gbXML is limited to Spider Viewer and Trane TRACE700 I am not qualified to assess impact across the wider gbXML community. I have requested that gbXML.org comment on behalf of the community. As far as Spider Viewer is concerned, the absence of the attribute prevents filtering for 'exposedToSun' faces which increases level of difficulty of the gbXML quality assurance process. I have not had the opportunity to characterize severity of impact on TRACE700 analysis results.