# Notes

## The calculation of STL / Polygon Creator

1. Make the polylines within Distance Tolerance from the original line.
2. If the angle of the broken line in the direction of the tangent to the curve is over Angle Tolerance, the polyline is segmented.
3. If the angle of the broken line has been over Angle Tolerance after the segmentation, the polyline is re-segmented.
4. Until the angle of broken line is under Angle Tolerance, the third process is repeated.