Surface Matching Apply Measure

asked 2014-12-29 17:15:57 -0500

poloplaya
91 ●1 ●3

updated 2017-08-05 13:26:37 -0500

I have a few questions actually, and would really appreciate any help in regards to any of them. I have completed my model in sketchup (saved as osm file). I have added all the exterior windows, and now I am trying to do the surface intersecting and matching. Does it make a difference if you do the surface matching before or after adding windows? Also since the sketchup plugin that performs surface intersection/matching creates errors (many spaces turn white), I have downloaded the Surface Matching Measure in Open Studio (1.4.0), which worked fine for me when I tested it earlier on the first few floors. However now after completing the entire building, the apply measure is not working. When I ran it awhile ago it only took a matter of seconds, but now it either continues to run forever or gives me an error. I can't figure out what is going wrong now.

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answered 2014-12-29 22:49:05 -0500

David Goldwasser

20295 ●94 ●14 http://www.openstudio.net/

There are a few situations where creating windows and then surface matching would be problematic

If you plan to use a WWR script/measure vs. manually drawing then you really want surface matching done first so the script/measure can identify interior vs. exterior surfaces.
If you are going to have interior sub-surfaces and you use the measure based intersection vs. the SketchUp plugin then you will want to intersect/match and then add the interior windows. The measure based intersect doesn't find sub-surface intersections. Only base surfaces.

Can you provide some more details on the performance issue doing your full model vs. the test?

How many spaces did your test model have?
How many spaces is the full model? I would expect a model twice as big to take more than twice as long to intersect.
How long did you wait for the full model intersect to run? And did you get any feedback while it was working?

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converted answer from @poloplaya to comment

I have been manually drawing the windows, and there are only exterior windows.

My test model was around 150 spaces, and the total model is 440. At first it was giving me an error right away, but now it shows "running measure" for several minutes (over 4 min). I haven't had any feedback during the process besides the first time around, but I don't recall the error that showed up.

Thanks a lot David!

David Goldwasser ( 2014-12-30 16:48:25 -0500 )edit

I just did a quick test with 400 space model (with simple spaces) and matching with intersecting using apply measures now took about 30 seconds. 4 minutes should be enough unless you have lots of surfaces and sub-surfaces in each space. Have you tried letting it sit there for 20 minutes just to see what happens. Feel free to send the model to OpenStudio@NREL.gov and we ca see if we see similar behavior with themodel.

David Goldwasser ( 2014-12-30 16:49:46 -0500 )edit

@poloplaya, looking at your screenshot it failed on line 65 which if you have the newest version of the measure is the line that performs the intersect.

OpenStudio::Model.intersectSurfaces(spaces)

If you can send the model this happens to to OpenStudio@NREL.gov we can file a bug and hav ea test model to see what is happening.

David Goldwasser ( 2014-12-31 09:52:13 -0500 )edit

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Surface Matching Apply Measure

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