Modeling
About Archicad's design tools, element connections, modeling concepts, etc.

How to create a superellipse.

Anonymous
Not applicable
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?
18 REPLIES 18
Thomas Holm
Booster
Erika wrote:
...Is it this Superellipse?
Or ?
I'd guess this one:
AC4.1-AC26SWE; MacOS13.5.1; MP5,1+MBP16,1
Anonymous
Not applicable
Oh, I give.

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

Dwight
Newcomer
This looks like a job for "complex profile"


Set up your 2D path, magic wand the wall on it. Here it is.
Dwight Atkinson
Dwight
Newcomer
And another form based in that section.
opalescent.jpg
Dwight Atkinson
Anonymous
Not applicable
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
Newcomer
Tutorial? Schmoo-torials!

After you read this:


complex profile stuff

you are up-to-speed

You really need Experimentorials™ for this.
Dwight Atkinson
Dennis Lee
Booster
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
ArchiCAD 25 & 24 USA
Windows 10 x64
Since ArchiCAD 9
Anonymous
Not applicable
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
Not applicable
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