Polyline

[Nick.Curtis]

I know high quality splines are a long way off, but including POLYLINES in Revit's toolset would be a big improvement to core functionality. In Dynamo one frequently desires to reference a compound path. If Revit supported polylines, the user wouldn't have to draw multiple line segments, make a model group, then reference the group into dynamo and get group elements, then join the segments to form a polyline to work from. A combination of adaptive point type behavior would be of great benefit (3d snapping). Line endpoints could exist in the model independent of a workplane or with a much more liberal relationship to a WP. Allowing CLOSED polylines would be even better.

[Nick.Curtis]

Allowing model line or curve JOIN (into polyline or polycurve) would be a great additional option. Inversely, an EXPLODE function would be very handy as well.

[Intuos5]

Closed polylines would also work extremely well in conjunction with filled region, where the enclosed area could be filled in with a hatch. Similar to Adobe illustrator with stroke and fill on a closed polyline. 

Additionally, being able to modify imported Autocad polylines and exporting out polylines to Autocad would save a lot of time.

[Intuos5]

Perhaps the spline through points tool could be updated to have an option for straight segments. Atleast then the polyline remains parametric.