Top hat

 From:  Michael Gibson
1730.28 In reply to 1730.26 
Hi Burr,

> My 2 cents ( and it is only 2) is that the sweep doesnt do well with
> more than a couple or few profiles. Multiple profiles would become
> a Lofting operation.

It all kind of depends on what areas of your result you want to have control over.

If you want something that has a kind of automatically calculated "tautness" in one direction, then Loft should work well for that.

Like for example if you take these 3 circles:



A loft will build a shape like this:



It's sort of passing through those shapes in a kind of minimal smooth way.

If you wanted to control more details of how it is shaped as it is marching along in the "lofting direction", then a sweep will let you get more control over how the sides are shaped, like for example:



You could get that with just doing Loft by adding in a whole bunch of circles, but it is easier to draw a curve to use as a rail for sweep to get more control over that.

If you need additional shaping control, then use sweep, otherwise if you don't need exact control over that side shaping, then Loft is more likely the way to go.


(By the way, for doing things made up of all perfect circle sections actually doing one profile and using revolve is easiest for that, but still this example should show the right idea I hope).

- Michael