The contours for the job are stored internally as polylines.

A Polyline is a lined formed by a series of XYZ points. The points stored are the ‘cuts’ on the sides of the triangles.

Polylines can be drawn quickly on the screen in straight or curved format and can also easily be written to a DXF file.

When you Press the Apply button on the Contour Parameters dialog box or when you form triangles, the polylines are regenerated.