Definition:Central Projection/Center of Projection

Definition

Central Projection of $\set {A, B}$ onto $\PP_2$ from $C$

Let $\PP_1$ and $\PP_2$ be planes.

Let $C$ be a fixed point which lies on neither $\PP_1$ nor $\PP_2$.

Let $S$ be a set of points on $\PP_1$.

Let $f$ be a central projection of $S$ onto $\PP_2$.

The fixed point $C$ is called the center of projection of $f$.

Also see

• Results about centers of projection can be found here.

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): central projection
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): central projection