Difference between climate data and Radiance data.

濱田様

日本人の方の様なので日本語で書きます。僕の理解として実測したデータを使用したいと理解しました。間違いならご指摘を。

genskyを使われてますがgendaylitではダメですか?引数に日射量を渡せば良いのですが。

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Name : Koji Takemasa (Ph.D.)
Mail : [email protected]

From iPhone

2014/04/30 16:28、濱田裕章 <[email protected]> のメッセージ:

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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Hiroaki,
Two questions for you, although I can’t really answer yours yet:
1. Can you describe your view and what scene your file “t1_1.pic” shows? You still mention a parallel view, but Greg and Andy both recommended a hemispherical view (-vth).
2. Is it intentional that your “skyfunc glow groundglow” definition includes the values 0 0 0 0 instead of 1 1 1 0?

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