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?

[Erika Epstein]

You could start with the soccer field in the Library.
Please add your OS and AC version to your profile. Answers often vary dependent upon these variables.

[Anonymous]

Hey Erika,

Sorry for the delayed response. It wasn't my intention to create the stadium itself, just a 3d massing model and a 2d axonometric diagram.

[Anonymous]

Hmm... my sig didn't update...

[Erika Epstein]

Well, given your pic...
This should be in the GDL section. Look in the GDL manual under the HELP menu in archicad. You'll find examples of how to use superellipse formulae.

[Anonymous]

It looks like the mesh tool should do the trick.

Here is a quickie for example. I used a copy of the mesh with an SEO to get the underside of the shell. This works fine for shallow slopes but would be much trickier in steep sections.

[Erika Epstein]

I'm not sure what borki is after. From his second post, I was wondering which superellipse shape he is trying to build. Is it this Superellipse?
Or ?

[Anonymous]

Thanks for replying both,

I'm not completely sure it is a superelipse, but my impression is that the curves seem to bend in a way that it isn't simply a line abruptly altering it's angle/slope as it begins a curve- that the shape itself is uniform in some mathematic way/formula.

Make sense?

[Anonymous]

My point was just that if you know the geometry you can probably get the mesh to work. Its a matter of getting the contours right.

[Anonymous]

Thanks Matthew,

This was closer to what I did, but I didn't think to use the mesh option- great idea- now I need to go play with it a bit, GDLs too.

Thanks again to both of you:)