Rotate an array of points in cartesian coordinates about the x, y, z axis or a specified vector by a specified angle.
Call functions xrotate, yrotate, zrotate, and vrotate to rotate 3-dimensional arrays how you need to.
Running rotations.py shows a basic example of how it works. ('python rotations.py') No additional input necessary.
positions = [[x1, y1, z1], [x2, y2, z2], [x3, y3, z3],..., [xn, yn, zn]]
theta = ## degrees
vector = [vx1, vx2, vx3]
xrotate(positions, theta)
yrotate(positions, theta)
zrotate(positions, theta)
vrotate(positions, theta, vector)
an example of rotations.py functions at work, showing points aligned in a cube rotating using each function
shows how quickly rotations.py works Recent approximate run times (may vary by computer):
| Points (#) | Time (s) |
|---|---|
| 100000 | 0.006 |
| 1000000 | 0.023 |
| 10000000 | 0.221 |
| 100000000 | 2.043 |