Welcome to the Onshape forum! Ask questions and join in the discussions about everything Onshape.

First time visiting? Here are some places to start:
  1. Looking for a certain topic? Check out the categories filter or use Search (upper right).
  2. Need support? Ask a question to our Community Support category.
  3. Please submit support tickets for bugs but you can request improvements in the Product Feedback category.
  4. Be respectful, on topic and if you see a problem, Flag it.

If you would like to contact our Community Manager personally, feel free to send a private message or an email.

computing tangent vectors on start of spline [for newbie]

malet_jlmalet_jl Member Posts: 10
I try my first feature script, 
I can select curves filter with :

annotation { "Name" : "Edges and sketch curves to sweep",
                         "Filter" : (EntityType.EDGE && ConstructionObject.NO) || (EntityType.BODY && BodyType.WIRE)}
            definition.surfaceProfiles is Query;

I then want to loop on each selected definition.surfaceProfiles and compute a tangent start vector and a tangent stop vector.
how can I do that?
thanks and regards


  • _anton_anton Member, Onshape Employees Posts: 10
    edited July 14
    There's a similar example here. Essentially, you'd take a query for edges, evaluate it, loop over the result, and use evEdgeTangentLines with parameters 0 and 1 to get the tangent vectors.
Sign In or Register to comment.