3D Polyline Entities

SketchUp's 3d Polyline entities are curve-like entities that do not generate inference snaps or affect geometry in any way.  Freehand sketches are usually used for tracing imported drawings, 2D sketching, or for decorating your model.

Draw 3D Polyline entities with the Freehand Tool.

Note - You can explode a freehand sketch into regular edge segments using the Explode context menu item (see the 3D Polyline Context Menu Items section later in this topic).

Note - A 3D Polyline looks just like a Curve entity, but is thinner.