Window

window dimensions

window length

w

m

1≤ w ≤3.8

window height

h

m

1≤ h ≤3

window-to-wall relative position

horizontal relative coordinate

e

m

0.1≤ e ≤3.5

vertical relative coordinate

f

m

0≤ f ≤2

Local climate

sun position

hour

x

5:30≤ x ≤18:30

day

y

1≤ y ≤31

month

z

1≤ z ≤12

Subject’s position

solid angle

subject’s eye relative distance perpendicular to the window

l

m

50≤ l ≤550

subject’s eye relative position to the centre of the window

t

m

0≤ t≤300

subject’s eye height

r

m

110≤ r ≤190

Shading system

Horizontal shade element

horizontal element depth

a

m

0≤ a ≤2

horizontal element inclination

b

degree

0≤ b ≤45

Vertical shade element

vertical western-side shade element depth

c

m

0≤ c ≤1.5

vertical eastern-side shade element depth

d

m

0≤ d ≤1.5