[Radiance-general] Difference between climate data and Radiance data.

[Greg Ward]

Dear Hiroaki,

Although I am not sure what you are attempting to match or how you are doing so, but I can at least say that your view file is probably wrong.

The "-vtl" option specifies a parallel view, when you no doubt want a hemispherical projection ("-vth") in this case.

Best,
-Greg

> From: 濱田裕章 <hiroaki.mp.3 at gmail.com>
> Subject: [Radiance-general] Difference between climate data and Radiance data.
> Date: April 30, 2014 12:28:19 AM PDT
> 
> Dear all,
> 
>  
> 
> I’m going to study distribution of solar radiation in buildings in the city by using GIS data.
> 
> I’d like to match a climate data with Radiance data. But, I couldn’t get the same value.
> 
> Does anyone know the idea how to match climate data and Radiance data?
> 
> My method is below.
> 
> Obtain an illuminance by using Pvalue command.
> 
> views file is below.
> 
> rview rvu -vtl -vp 0 0 10 -vd 0 0 1 -vu 0 1 0 -vv 180 -vh 180 -vo 0.0 -va 0.0
> 
> skies file is below.
> 
> !gensky 6 22 5:0 -B 46 -R 37.12796503 -a 43.035 -o -141.199 -m -135.0
> 
> skyfunc glow skyglow
> 
> 0
> 
> 0
> 
> 4 1.000 1.000 1.000 0
> 
> skyglow source sky
> 
> 0
> 
> 0
> 
> 4 0 0 1 180
> 
> skyfunc glow groundglow
> 
> 0
> 
> 0
> 
> 4 0 0 0 0
> 
> groundglow source ground
> 
> 0
> 
> 0
> 
> 4 0 0 -1 180
> 
> bash file is below.
> 
> pvalue -h -H -d t1_1.pic | total -m | rcalc -e '$1=($1+$2+$3)/3*16'>t1.dat
> 
> The result is below.
> 
> time       ND*1      Altit*2    HD*3=R               B*4         no Gensky           -i            -u
> 
> 4:00       0            0.278     0                          7            4.0464                 9.4688   8.9056
> 
> 5:00       225        9.498     37.12796503       46          25.44                   52.128   58.368
> 
> 6:00       445        19.824   150.9137426       76          43.12                   75.744   96.752
> 
> 7:00       588        30.608   299.3870167       82          51.872                 79.744   104.256
> 
> 8:00       636        41.547   421.8169494       108        82.752                 112.752 137.504
> 
> 9:00       618        52.252   488.6593632       151        149.504               190.56   192.48
> 
> 10:00     557        61.986   491.7378991       220        295.04                 371.04   279.04
> 
> 11:00     519        68.96     484.3982757       264        451.04                 590.08   335.04
> 
> 12:00     459        69.842   430.8843623       300        534.08                 694.08   380.96
> 
> 13:00     395        63.995   355.0085362       348        495.04                 625.92   443.04
> 
> 14:00     532        54.691   434.1369031       207        220.48                 276.96   263.04
> 
> 15:00     397        44.127   276.411698         219        176.48                 236.48   279.04
> 
> 16:00     442        33.203   242.0423097       160        104.752               156.496 203.52
> 
> 17:00     164        22.352   62.36849428       132        75.744                 129.504 167.52
> 
> 18:00     35          11.887   7.209375721       62          34.128                 67.744   78.752
> 
> 9:00       0            2.249     0                          7            3.976                   9.032     8.9056
> 
> *1: Normal direct solar radiation
> 
> *2: Horizontal direct solar radiation
> 
> *3: Solar altitude
> 
> *4: Horizontal total solar radiation
> 
>  
> 
> Best regards,
> 
>  
> 
> Hiroaki
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