Here is a new inflation simulation component. Load a closed curve into “BaseCrv”, it gives an inflated balloon surface, and it is untrimmed! Use “Smooth number” to view animation effect.
Welcome everyone to explore the component and leave your comments.
N(u) is an int for how many points to describe the input curve. It is possible leave the original curve not touched, but I didn’t expend the option in this version.
thanks for this great component! very useful – one suggestion: It would be awesome if one would have more control over the “stretchiness” of the foil. Here are two extremes, in first one the curvature is accumulated in the middle and in the second more at the edge
There is a lot that is great about this, Thank you.
It seems to have difficulty with corners in the input curve, both internal and external are missed, and they are leading to creases in the inflated shape.
Drew
Hi Jia Zhuang,
Thank you for your reply, here is a simplified GH file that shows the problem with a rectangle.
It is based on the first file you uploaded.
DrewInflateSimulation corners Drew.ghx (150.4 KB)
Drew
Because I’ve noticed a problem when the profile is rotated around a sharp corner. The curvature is pushed upwards and “gives rise” to these lumps on the top of the surface. Because of this I don’t use railrevolve for these kind of surfaces and construct them mostly by hand…
A true inflated surface will become more spherical (/ parabolic I guess) at the top - maybe this could be achieved with some kind of cv-pulling? Just my 2 cents - thanks again!
ok- good to know. The orange example shows on the left a inflated foil with kangaroo on the right one created with your plugin. Maybe this should have been a bit clearer. In my case these bumps are not preferred, eg imac:
It is smooth from out to inside. But one different for iMac, the top is not closed to one point but a planner surface. I made some modification on the simulation to achieve that. InflateSimulation.ghx (289.6 KB)
