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Linear algebra and
geometric transformations in 2D
Computer Graphics
CSE 167
Lecture 2
CSE 167: Computer Graphics
Linear algebra
–Vectors
–Matrices
Points as vectors
Geometric transformations in 2D
–Homogeneous coordinates
CSE 167, Winter 2018 2
Vectors
Represent magnitude and direction in
multiple dimensions
Examples
–Translation of a point
–Surface normal vectors (vectors orthogonal to
surface)
Based on slides courtesy of Jurgen Schulze CSE 167, Winter 2018 3
Vectors and arithmetic
Examples using Vectors are
3‐vectors column vectors
Vectors must be
the same length
CSE 167, Winter 2018 4
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