This system variable can have a drastic effect on the appearance of offsets. It’s stored in the registry so it affects all drawings. The initial value is 0. Check the simple picture below as a reference.

• 0  Extends the segments to fill the gap (the old way)
• 1  Fills the gaps with a filleted arc segment (the radius of the arc segment is equal to the offset distance)
• 2  Fills the gaps with a chamfered line segment