ABSTRACT
That is, the conversion from homogeneous coordinates in C to D coordinates is just a linear transformation.
For example, suppose Coords(o,D) = 〈1,2〉, Coords(⇒x ,D) = 〈3,2〉, and Coords(
⇒ y ,D)= 〈−2,3〉, and suppose Coords(p,C )= 〈2,1〉 (Figure 7.1). Then
Hc(p,D)= ⎡ ⎣ 3 −2 12 3 2
0 0 1
⎤ ⎦ · ⎡ ⎣ 21
⎤ ⎦=
⎡ ⎣ 59
⎤ ⎦ .