Hi, if you would be open to using code you should be able to use the Split() command as in this thread:
Note that there are some limitations if used through the Grasshopper Component in Tekla.
Without code, you might be able to create your own splitter with something like this approach:
- Reference in a rebar into GH
- Deconstruct it to get the polygon(s) (and StartPoint - EndPoint for a group if you want to split the range) - use the Expand object as in this post: Import reinforcing bar Points from Tekla to Grasshopper - #2 by sebastian.lindholm
- Split that polygon
- Use one part of the polygon as input to the Modify Rebar component to modify the original rebar
- Use the other part with a Rebar component to create a new rebar
- The new rebar could hopefully get its attributes mapped from the expanded old rebar
Cheers,
Sebastian