HB+, legacy and DAYSIM results

grasshopper honeybee[+]
4

@sarith and I talked about this a little bit more and the results from Honeybee[+] is actually the correct one. Here are a couple of notes:

  1. Both Daysim and Honeybee[+] are using the hour between the two hours for the simulation. If you check the wea file you’ll see that the hours are 8:30, 9:30 and so on. For the comparison you need to set the sun-path time to 9:30 to get the correct direction.

  2. Daysim uses 61-65 sun positions for direct calculation, however Honeybee[+] uses the exact position of the sun for the direct calculation. See this paper for more information.

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