Hello has anyone ever attempted recreating the centre pompidou metz? weather the shape or the structure? anyone can give me some insight please? thanks!
thank you but i needed more insight on how to really create the shape!
Hereās one by a 
Grasshopper tutorial - modeling the complex roof of Center Pompidou metz
thank i ve actually checked all the videos on youtube and found nothing on recreating the shape , all the videos show how to create the pattern , and i need to do the shape on grasshopper , im already starting to do it using kangaroo, heres the file
pompidou.gh (13.3 KB)
What units are you working with?
And whatās the purpose of this incomplete file you shared?
default millimitres, but it doesnt matter i just need the overall shape!
Size does matter.
Another oneā¦
Rhinoceros design Shigeru Ban Works Centre Pompidou Metz - YouTube
ēēå»ŗēē½ļ¼Rhino3dļ¼ - Rhinoå»ŗēå¦ä¹ å¹³å° -
this is also rhino , and not the full shape , im trying to do it using kangeroo but it doesnt want to work , any ideas?
pompidou.gh (18.6 KB)
i dont see no pigeons xD
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You also donāt see the shit until you stand right there
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That looks like a funicular vault. The actual building appears to be a minimal surface.
In the past this would have been determined by soap film on wire boundaries.
ref: Frei Otto.
Thereās a Kangaroo component for this, SoapFilm. You need to anchor points at the boundaries and let the rest of the mesh relax. Generating this initial mesh from boundary curves could be done any number of ways, or you could model it in rough form with a SubD and use that mesh with naked verticies as your anchors. There are plenty of tutorials out there for this component.
The hexagonal grid is quite simple, being exactly aligned to the hexagonal boundary in plan. Youāll be able to project smooth lines for the beams if your mesh is fine-grained enough, but I imagine youāll have āfunā controlling torsion when sweeping a profile along those lines. Getting the face normal from the mesh at regular intervals might do it?
(I am resisting the urge to actually dive into this in GH. Itād eat up my day! But hopefully those are enough pointers to steer you in the right direction)
Friday afternoon + my will is weak.
Turns out SoapFilm is not stable enough for this geometry (A real soap film would collapse and detach from the leg foundations) so I suspect it was done with something like EdgeLengths set to zero instead.
There may be a neater way to generate the intitial mesh but this way works well enough.
Pompidou Metz - EdgeLengths.gh (20.3 KB)
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In the past this would have also been built with straight wooden laths bent into shape instead of massive curved and twisted glulam beams.
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The construction bothers me too. The grid doesnāt follow any lines of force, doesnāt get denser in areas of higher load etc. Itās just a flat hexagonal grid imposed from above. The key engineering paper is hidden behind a paywall but from reading around the edges, it seems like the structural engineering was applied to the form once found, rather than driving it.
Compare and contrast Mannheim Multihalle. 50 years old and much more elegant IMO.
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