Specifying 3D View
(Camera Analogy)
•
Center of camera (x, y, z)
: 3 parameters
•
Direction of pointing (
q
,
j
) : 2 parameters
•
Camera tilt (
w
)
: 1 parameter
•
Area of film (w, h)
: 2 parameters
•
Focus (f)
: 1 parameter