Tool Palettes Curve Edit > Sort sections > To sort section lines

Curve Edit > Sort sections

Sorts section lines into layers based on their axis orientation.

To sort section lines

Pick the section data.
Choose Curve Edit > Sort sections.

If they do not already exist, the tool creates X_sections, Y_sections, Z_sections, and Other_sections layers.

Section lines are a type of degree 1 NURBS produced from scan data in Spider and some CAD packages.