How do I loft this?
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 From:  Michael Gibson
6392.13 In reply to 6392.12 
Hi Gareth,

> @Michael: could we get some visual indication of which points are regular control points and which are
> 'corner' points. Like maybe a sub menu for 'Show Points' that would set us see just one type and/or
> different coloration or iconography when all points are shown?

It might be difficult to have a sub menu for 'Show Points' because it currently doesn't have any options stage in it. Like for example right now you can just select a curve, then run Show points, and the command just immediately shows the points and exits.

So there isn't currently any menu to add another option to right now.

In the future I want to have an "extended properties dialog" which might be a good place to add various kinds of specialized show/hide markers on objects.

- Michael
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 From:  gareth.ky (GARETHKY)
6392.14 
OK, I tried all of the suggestions in the thread but noting was an exact blueprint for this situation. But now I have a result that I'm happy with:



The Magenta area was produced from a rail loft. Simple surface-to-surface blending produced creases at the corners. I used several curves produced by putting lines along the surfaces and joining them with blend.

The Magenta form originally went all the way to tho top of the large shape on the left. I messed around with various operation like Boolean Diff and so on to try and cut part of it away. This always ended in something odd happening. I was getting strange surfaces with edges that didn't meet up! The shapes are so close that I think its running into the precision of the underlying math. I also tried the technique of sweeping a circle along the intersection line to make a solid to cut with. No dice.

So I just made a curve in the Right view and projected it onto the surface with Iso Curve and used that for cutting. That works perfectly. With that done I get 3 resulting edges on 3 faces that I join to make a loft curve. Using the technique I detailed in my previous post I chopped and joined the profile of the gray colored form on the right into 3 pieces to match. Then I used Loose Loft to make the Cay form with 1 intermediate control curve. You can see the results of the chop/join in the paths that the Yellow lines take. If you just loft the curves you won't get a result like that.

I still have to do this on the actual model where things are /slightly/ more complicated but I think I have a workflow that will scale to that complexity.

Thanks for all the help everyone!

I've been hacking at this for 3 weeks and I'm super happy I got a solution!!! :)
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