Selecting edges for a loft

I wondering how I select particular edges from a list of Brep edges from two separate surfaces so that I may lof a surface from the extracted edges. One surface is a mirror of the other, so I am assuming that the edges that I am wanting to loft between share the same information, i.e "0 Planar Curve" on the loft has "0 Planar Curve" as its mirror. Assuming that, how do I extract each of those curves into a list so that I may loft a surface between them? I have messed with Pick'n'Choose, but I can't seem to get what I am looking for. In the image attached, you will see distinct gaps between the opposing edges that I would like to bridge with flat surfaces. Any thoughts?

Attachments:

Edges.png, 87 KB

Replies to This Discussion

Permalink Reply by Florian Frank on March 1, 2013 at 12:02pm

Hi Kev,

you have a pretty clean setup...so try this in order to loft each curve with the corresponding curve from its mirror surface:

- Graft the En outputs

- Place a loft Component

- Plug both En outputs to the same (Press Shift) Curve input of this loft Component

At the end you might join the surface in order to get a nice closed brep...

Hope this helps

Cheers FF

Permalink Reply by Kev Delaney on March 1, 2013 at 12:11pm

AHH.. Thank you so much! It's funny, as I've been learning the concept of pressing shift for multiple inputs has been lost on me for some reason, which has made basic lofting a far more trying exercise that it should be. Thanks again, and yes, my intent was always to join these surfaces so they are nice and closed.

-Kev

Permalink Reply by Kev Delaney on March 1, 2013 at 12:48pm

Here's another question for you: How do I then single out just one of those surfaces so that I can perform some calculations on it? I've been trying to use the Tree Item component, but I can't seem to get that to cooperate.

Permalink Reply by Florian Frank on March 1, 2013 at 1:01pm

you can use the Tree Item to do this...rather complicated:

- Create Path component

- input a list of numbers (e.g 0 nLine 0 nLine 3) in a panel (Multiline Off) to get a path like {0;0;3}

- plug the created path to the Tree Item... i (index) should be 0

or do it the easy way...just flatten and use item list ;-)

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