Hi Bbalbastre,
If you’ve only got single bars, you could get the control points (the ones in your pic) with the Expand Object component like this:
If you need the physical points on the rebar itself (that take into account cover thicknesses etc) you can use the GetRebarGeometries method (https://developer.tekla.com/tekla-structures/api/22/15004). This is also needed to get the points of individual bars in e.g. a rebar group.
Here’s a C# component that uses this method to obtain the polylines of individual bars from any rebar type:
GetRebarPolygons.gh (14.4 KB)
pic:
Cheers,
Sebastian