How to create a superellipse.

[Anonymous]

Hey all, this is my first post, so I hope it falls in the right place.

I'm looking for a way to draw/generate a 2d superellipse (or something close- as the shape might not be precisely this) in plan- perhaps then after extrude it and round the edges to form the basic shape of a building.



Is this possible?

[Thomas Holm]

Erika wrote:
...Is it this Superellipse?
Or ?

I'd guess this one:

[Anonymous]

Oh, I give.

Though it does seem to be a little shifty from pic to pic.

[Dwight]

This looks like a job for "complex profile"


Set up your 2D path, magic wand the wall on it. Here it is.

[Dwight]

And another form based in that section.

[Anonymous]

I'll have to look into the complex profile function- I've never used it.

I should probably also look into some more advanced tutorials- seems like I've only scratched the surface with the one that comes with the program.

Thanks)

[Dwight]

Tutorial? Schmoo-torials!

After you read this:


complex profile stuff

you are up-to-speed

You really need Experimentorials™ for this.

[Dennis Lee]

borki wrote:
Hey all, this is my first post, so I hope it falls in the right place.

I'm looking for a way to draw/generate a 2d superellipse (or something close- as the shape might not be precisely this) in plan- perhaps then after extrude it and round the edges to form the basic shape of a building.



Is this possible?

Did you try this object?
http://archicad-talk.graphisoft.com/viewtopic.php?t=2084

[Anonymous]

It would be realllly cool if there was a library part that created the shape in 2d. With a couple of of 2d hotspots to control the superellipse parameters.

Make Piet Hein smile.

Any GDL wizards up to the challenge?

[Anonymous]

Look, here's the parametric formula.

A superellipse may be described parametrically by
x = a*cos^(2/r)t

y = b*sin^(2/r)t.


The restriction to r>2 is sometimes made.

Superellipses with a=b are also known as Lamé curves or Lamé ovals, and the case a=b with r=4 is sometimes known as the squircle. By analogy, the superellipse with a!=b and r=4 might be termed the rectellipse.

Wouldn't this be a cool shape to have in one's palette?

http://mathworld.wolfram.com/Superellipse.html