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[Solved] Since adding the geopositions in TRNBuild, a vfm file is no longer created

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Topic starter
Hello Trnsys users,
 
 
I'm simulating an elevator shaft whose external walls consist mostly of windows.

I created a zone and shading groups in Sketchup using the trn3d plugin. Using the virtual surfaces, I created 5 Airnodes stacked horizontally and moved them all into a zone. The radiation mode for beam, diffuse and loongwave is set in detail.

So far everything has worked well. I was able to generate visibility factor and shading matrices.
Since I added point geometry for the detailed average radiant temperature calculations for the comfort type, the following has happened:

No errors appear when I generate the view factor matrix, but no vfm-file is generated.

 

 

The log-file ends with:

==== zone Gebaude...

++++ Calculation of geopos view factors in zone Schacht...

 

 

Previously, without Geopos it ended:

==== zone Gebaude...

++++ Writing VFM file: C:\Users\Admin\Documents\Projekte - lokal\CLC\00_Simulation\00_TRBSYS - Modelle\R2\32\R2_32(16).vfm

VFM file successfully created.

 

I am working with TRNBuild 3.0 (TrnsysRelease = 18.02.0002)

 

Best regards,

Leopold Modrakowski

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2 Answers
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@leomodra

this sounds like an issue that might be best addressed to your Trnsys distributor. If you are not sure who to contact please contact me directly and I can help get you pointed in the right direction.

kind regards,

 David

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Topic starter

Ok, I got it...
It was my mistake. The geopositions were outside the zone.

The y-axis in TRNBuild is negative compared to Sketchup/TRN3d.

I noticed it when I saw the GeoPos in the trnViewBUI. After the correction, the view factor matrix is generated as usual.

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