ee.Number.atan2

Calculates the angle formed by the 2D vector [x, y].
UsageReturns
Number.atan2(right)Number
ArgumentTypeDetails
this: leftNumberThe left-hand value.
rightNumberThe right-hand value.

Examples

Code Editor (JavaScript)

// Left input is x and right input is y, representing point (x,y).
print('Atan2 of point (0,0)', ee.Number(0).atan2(0));  // 0
print('Atan2 of point (1,0)', ee.Number(1).atan2(0));  // 0
print('Atan2 of point (0,1)', ee.Number(0).atan2(1));  // 1.570796326 (π/2)
print('Atan2 of point (-1,0)', ee.Number(-1).atan2(0));  // 3.141592653 (π)
print('Atan2 of point (0,-1)', ee.Number(0).atan2(-1));  // -1.570796326 (-π/2)