Lock a Cross Section Direction

The cross section of a profile is positioned perpendicularly to a line when you move the cross section over it.

Other direction is possible to select from any line on the model. For example, on a line of the guide curve line, or a line on the line of the profile.

1. Move the cross section over a line (A).
2. Press and hold the Alt key.
3. Move the cursor away from the line. The cross section will keep its direction.
4. Move the cross section over another line (B) and click a line or a point.
5. Release the Alt key.

Guide Curve