Angle Limit: Vectorize: Trace

The Angle Limit determines the amount of Path Smoothing performed. 

The allowable value range is between 0 and 1.33 (4/3), with smaller values resulting in less smoothing and more corners.

The default value is 1, which is the optimal value. 

Generally, Angle Limit works best on images with higher resolutions. Angles are favored both by sharp angles and by long segments. 

Thus it will detect a corner if two short segments meet at a very sharp angle, and also if two very long segments meet at a slight angle.

If Too Many Angles are detected, the output will look like a Polygon and will no longer be smooth.