Homogeneous Translation Matrix

Problem

Build the 3x3 homogeneous translation matrix that shifts a 2D point by (tx, ty):

T = [[1, 0, tx], [0, 1, ty], [0, 0, 1]]

Hint

The translation lives in the last column of the homogeneous matrix.

case 1

in: [2,3]

expected: [[1,0,2],[0,1,3],[0,0,1]]

case 2

in: [0,0]

expected: [[1,0,0],[0,1,0],[0,0,1]]

case 3

in: [-1,4]

expected: [[1,0,-1],[0,1,4],[0,0,1]]

case 4

in: [1.5,-2.5]

expected: [[1,0,1.5],[0,1,-2.5],[0,0,1]]

Starter codePython

def translation_matrix(tx, ty):
    # Your code here
    pass

4 test cases · run your code against them in the editor