constrained will not meant "closed", it is a common mistake:knightstreet wrote: ↑Tue Mar 21, 2023 9:55 am So the shape is already closed. Why is loft complaining that the shape isn't closed? I should be able to loft the shape with the line right?
two point that share the same position are not connected between them, they simply have the "same position in space".
Difference is between what links one object to another.
When you have full constrained sketch it wil mean that simply point are not moving in relation one to another, how these point are "connected" is another matter.
Interesting concepts that will shed some light could be "wires" and specifically open and closed wire, But even distinction between Topology and Geometry.
CAD modelling is different from sheet and paper modelling.
Regards
Carlo D.