Quote:
Originally Posted by DARISC
Rotations = length of line / circumference of coin.
|
Then you have to consider whether the net direction change of the line is in the direction of rotation of the coin or opposite it.
If in the same direction, add one turn for every 360 degree net change in orientation of the line or subtract one turn for every 360 degree net change on the opposite direction.
So for a straight line: exactly what Darisc said.
For a line such as the one above, subtract about one rotation.
Les