Name | atan2 |
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Examples |
draw <- function() { 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. | ||||
Syntax | atan2( | ||||
Parameters |
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Related |
tan |
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