How can I _squish a brep with python?

[ivelin.peychev]

Not scripting the command that is…
What is happening behind the scenes?

[DavidLeon (David Andres Leon)]

maybe this will help: https://docs.mcneel.com/rhino/6/help/en-us/index.htm#commands/squish.htm?Highlight=squish

[ivelin.peychev]

Thanks @DavidLeon,

I was looking at the Squish command in the help but didn’t find this particular article.

by asking what’s happening behind the scenes I was wondering if Unroll is used somewhere inside the squish command. And if I can use Unroller class methods to mimick the squish command using Python.

But as I read the article I fear this is not possible.

However, the Squish algorithm is much too simple to even begin to model the true physical properties of most materials that come in sheets, particularly those that where material thickness plays a role and those that can compress or stretch any appreciable amount,

In short, if a sheet of material is expensive, cutting it is expensive, or bending it is expensive, or related issues in the manufacturing process are time critical or money critical, then consider using Squish to give you an initial hint about the shape of a pattern, but real material and manufacturing expertise will have to be used to create a pattern that will work on the shop floor.

This is exactly what I wondered if thickness is taken into account. Apparently not.

Is there any examples somewhere using custom deformations taking thickness into account that is close enough to real steel behavior?

If I have a brep that already has thickness Squish is currently executed on a single face. And if I choose not to SplitSeams I can’t really trust the result, can I?

[ivelin.peychev]

For the time being this post does the trick.

How to call squish command in Rhino Script

Hi Direyes, EDIT: only after posting I realized you are not programming in Python. Still I leave my answer up as it might still be of use to OP or others. I extracted the squish code out of our library. Some lines specific for our workflow I purged so maybe that broke something, but I think it will get you on your way: def squish_macro(objs): """ run squish command on input geometry and return result squish command options: SplitSeams=Yes PreserveBoundary=…

Thanks for sharing this @Willem