I have two parallel lines that I am trying to join the curves on both lines at the same time. But I also want them to stay two open curves and not become a closed curve.
The lines have many different curves and they are very close together so it is very hard to just select one side at a time to join.
When I join them, the ends move to meet each other and form a closed curve.
Is there a way to only join points that are touching?
Try checking your moddelingtolerances vs object size. If your gap is less than the tolerance then Rhino joins without warning. This often happens when shapes are drawn freehand or scaled, or if the wrong template was used before importing another file.