- Reduce unnecessary vertices near T-junctions and crossroads, so that most intersections meet at a single point.

↓After post-processing

- By corner sharpening, the vertex of corners becomes a single point regardless of acute or obtuse angles.

- Removal function of unnecessary vertices on straight lines which eliminates almost all unnecessary vertices on straight lines.

- Removal function of whiskers that occur at the tip of acute angles.

↓After post-processing