Grasshopper

algorithmic modeling for Rhino

HoneyBee reports error with some Radiance parameters

Hello everyone!

First of all many compliments for this two great tools you created (LB & HB), they've changed my way of running my simulations and are therefore very very useful.

I'm experiencing a problem though when trying to set a daylight simulation with some determined radiance parameters. Here's the problem: After many tries I think I found out that setting -ab = 6 and at the same time -aa = .05 creates some sort of problem, because when I try to do so My PC blocks for several minutes, without letting me manually end processes from taskmanager, and when I'm able again to enter grasshopper, i get the following error:

"Solution exception:index out of range: 0"

Does this really depends on the parameters and values I found out or is it related to something else? Is the problem relative to the structure of HoneyBee or is it just relative to my specific case (and maybe PC)? Is it possible to solve it, and if yes, how?

Atteched you find my rhino model and my grasshopper file.

Thanks in advance for your help and again many compliments!

Luigi

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Permalink Reply by MaHa on December 20, 2015 at 5:18am

Hi Ligui,

Your model is ok and I could run it properly. I think the error can be about cancelling the simulation when it was running. Try it once more.

My result is attached here.

Permalink Reply by Luigi Giovannini on December 20, 2015 at 8:55am

Hi masoome,

thanks fir yiur reply!

I tried to run again the simulation with the same parameters as the file I attached before and without stoppong it, but I keep getting the same problems and errors. The  PC actually stops working because after a few seconds the simulation starts the fan inside the PC all of a sudden stops and for the next 5-10 mins I cannot do anything, even alt+ctrl+canc. After I wait for that time i get the followig error:

the ReadMe says:

{0;0;0}
0. Grid-based Radiance simulation
1. The component is checking ad, as, ar and aa values. This is just to make sure that the results are accurate enough.
2. -ar is set to 300.
3. Good to go!
4. Current working directory is set to: C:\Users\Luigi\Desktop\Prova__\Prova_1\gridBasedSimulation\
5. Found a trans material... Resetting st parameter from 0.85 to 0.01127600496
6. WMIC PROCESS get Commandline
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198. Runtime error (IndexOutOfRangeException): index out of range: 0
199. Traceback:
line 320, in script

The thing is that if I raise the -aa parameter from 0.05 to 0.1 all works fine..

Is this only related to my PC then?? What should I do to solve this issue?

Thanks again for your help

Luigi

Permalink Reply by Mostapha Sadeghipour Roudsari on December 21, 2015 at 8:29am

Hi Luigi,

Based on the report the analysis is running fine on your system. You may run out of memory with this setting. Setting aa to low values can be very computationally expensive. Do you really need to set aa that low? Here is a good reference for Radiance Parameters: (http://radsite.lbl.gov/radiance/refer/Notes/rpict_options.html)

Also check this discussion: http://radiance-online.org/pipermail/radiance-general/2015-August/0...

I added an error.log file to Honeybee daylight analysis with Radiance and it will hopefully give you a more meaningful error report if you try the attached file.

Mostapha

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