|
Calculating
Image Size
This
way of calculating image size is similar to TPB 45, but it is easier
to calculate various aspects or values of a screen image size.
This is called the "3-4-5" rule.
To
calculate image size, perform the following, but you need to have
one of the screen image size values. (I.e., screen width = 12')
- So
now the value for screen width -- (4) = 12'.
- Perform
the equation: 12' / (4) = 3
- This
is now the fixed value. 3
- For
screen height -- (3) put the previous equated value found 3 into
this equation for screen height (3) x 3 = 9'
This is now the value for the screen height = 9'.
- Now
take the remaining value not found the diagonal image size in
this case, value (5).
- Then
use the value found in number 2, which is 3.
Use
this value and multiply it by the diagonal image size, value (5).
This equation is: 3 x (5) = ?
3x (5) = 15' this equals 15'. This is now the screen diagonal image
size.
| The
screen image values found are: |
(3)
= 9' |
|
(4)
= 12' |
|
(5)
= 15' |
|
