atan2()
Contents
atan2()¶
Calculates the angle (in radians) from a specified point to the coordinate origin as measured from the positive x-axis.
Examples¶
1 2 3 4 5 6 | def draw():
py5.background(204)
py5.translate(py5.width/2, py5.height/2)
a = py5.atan2(py5.mouse_y - py5.height/2, py5.mouse_x - py5.width/2)
py5.rotate(a)
py5.rect(-30, -5, 60, 10)
|
Description¶
Calculates the angle (in radians) from a specified point to the coordinate origin as measured from the positive x-axis. Values are returned as a float in the range from PI to -PI. The atan2() function is most often used for orienting geometry to the position of the cursor. Note: The y-coordinate of the point is the first parameter, and the x-coordinate is the second parameter, due the the structure of calculating the tangent.
This function makes a call to the numpy atan2() function.
Syntax¶
atan2(y: Union[float, npt.ArrayLike], x: Union[float, npt.ArrayLike]) -> Union[float, npt.NDArray]
Parameters¶
x: Union[float, npt.ArrayLike] - x-coordinate of the point
y: Union[float, npt.ArrayLike] - y-coordinate of the point
Updated on February 26, 2022 13:22:44pm UTC