Twisted Box: Do the lines straight?

I'm playing around with twisted box and box morph, and the question arises: Is there a box command I can feed into box morph that can handle "irregular boxes," like the example below which is a shape composed of twisty lines. ?

Thanks

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box-morph-example.jpg, 266 KB

Replies to This Discussion

Permalink Reply by David Rutten on January 19, 2017 at 3:29am

No, the twisted box data type only stores the 8 corner points and assumes a linear deformation between them. What you need is full blown space-morphing using cages. The Rhino SDK I think has this stuff available, but I never exported that into Grasshopper.

How do you want to specify the deformed cage?

Permalink Reply by Ol OneEye on January 19, 2017 at 5:45am

Well, probably the easiest way would be to construct a Brep through a loft or sweep, and then space-morph to that. Out of curiosity, is this the case simply because it is very complicated to morph from a box to another box? Does box morph work now because a linear box is relatively simple?

Permalink Reply by David Rutten on January 19, 2017 at 7:39am

Creating a single brep won't do. Not only does it allow for too much freedom in the shape, what is needed is a deformation volume, not a boundary representation. Like the CageEdit commands in Rhino.

Does box morph work now because a linear box is relatively simple?

Pretty much, yes. When I added the morphing components the Rhino SDK still hadn't exported most spacemorph types and all I could do was provide some easy implementations I could write myself.

Permalink Reply by Ol OneEye on January 19, 2017 at 5:04pm

So I am out of luck? oh well i think straight lines can always work, just more work.

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