Construction Aid Line > Tangential Append (Construct Menu)

This command draws a Construction Aid line which runs tangential to a line, circle arc, ellipse arc, or Bézier curve.

After identification, a straight line appears which runs tangential to the reference object. This line is referred to as the "Reference Straight Line".

The end point of the Construction Aid line can be entered by clicking the mouse anywhere in the drawing. A perpendicular is dropped from this position to the reference straight line to determine the end point of the new Construction Aid line.