Regular route (minor by-product)
This is a regular route. Even if you change angle1 and angle2, it does not turn chaotic, but is morphing in a similar way as old 2D screensavers did, so maybe someone in the future would like to make a screensaver by this method.
By the way, this material is a fail. I tried to make a route based on sin, cos, etc that make the x,y,z coordinates the same rank (so their formulas shall be all alike), and get arbitrarily close to any longitude/latitude coordinate, and at the same time, the distance from origo is a constant multiple of "t".