rotation around fixed point by angle

ussef

Hello, i want to know how to rotate a point by a specific angle function prototype in javascript

var point = {
    x: 1;
    y: 3;
};
angle in radian

function rotate(point, angle);

thanks a lot :D.

koogs

rotations by default rotate around the origin.

to rotate around any other point start by translating everything so that the rotation point is the origin, do the rotation, then translate back.

GoToLoop

1. http://p5js.org/reference/#/p5/translate
2. http://p5js.org/reference/#/p5/rotate
3. http://p5js.org/reference/#/p5/push
4. http://p5js.org/reference/#/p5/pop

ussef

thanks a lot. that was helpful