Parameters
- C1
- First curve
- C2
- Second curve
- distance
- The chamfer distance
- flip1
- Flips first curve direction
- flip2
- Flips second curve direction
- trim1
- When true the first curve is trimmed
- trim2
- When true the second curve is trimmed
- chamfer
- The chamfer line
Return Value
True if the operation is successful, false if the curves don't lie on the same plane or don't touch.