def draw(): background(204) translate(width/2, height/2) a = atan2(mouseY-height/2, mouseX-width/2) rotate(a) 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.|
Updated on Mon Sep 21 15:53:24 2020.
If you see any errors or have comments, please let us know.
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License