Lofting Metaball

[clem.granger]

Hie everyone,

I’m trying to loft metaballs curves, I found this way :

Metaballs to mesh

Someone can help me, I’m trying to make a mesh from a metaball but i dont know how. Metaball.gh (8.3 KB)

But there no way to make it work on my slow PC and I don’t need a closed surface.

It works with one ball :

But can’t make it with two (or more) I’ve tried grafted or flattened…

If someone have a clue :
metaball_loft01.gh (11.0 KB)

Have a good day !

[Joseph_Oster]

Flip Matrix before Loft.

[martinsiegrist]

check this file: METABALL EXPLORATION - ROUGHy.gh (32.8 KB)

Controlling the bridges in metaball geometry

In this case you need to graft the planes and not the pipes. Grafting the pipes leaves you with a data structure per pipe. You want to have sections per plane. In your existing definition you can look at the Curves input of the Region Union component and you’ll see paths with different lengths. Due to that, the Region Union component doesn’t know what to do. [image] I added a Shift Paths component to have both the pipe sections and the metaball curves with an identical data structure. [ima…

[clem.granger]

It works great !
What’s the use of flip matrix there ?
Thanks a lot Joseph.

[Joseph_Oster]

@clem.granger

What’s the use of flip matrix there ?

Take a look at this:

Is there a better way to browse trees and their contents?

[image] vuTreeList_2017_Jan19a.gh (20.0 KB) [image] rows_and_columns_2018Jan23a.gh (20.2 KB)

Try connecting the ‘Tree/List Viewer’ tool before and then after Flip Matrix. Play with both sliders. See the difference?

[Joseph_Oster]

@clem.granger

What’s the use of flip matrix there ?

Before Flip Matrix, each branch of the tree is a layer with one curve from each ball.
After Flip Matrix, each branch of the tree has all the curves for one ball, as you need for Loft.

metaball_loft_2020Dec10a.gh (28.2 KB)

[clem.granger]

Thanks for the explication, i’ll take time to check your examples…

I’ve got a new loft trouble,

Some are lofted “straigth” in green and some are “spinned” in red.

Don’t khnow why !

metaball_loft_working01.gh (15.8 KB)

[Joseph_Oster]

Invert the ‘Adj’ input of Loft Options or set it manually (‘Align sections’) without the Loft Options component.

The seams (start/end points) are not aligned. It’s also possible to mess up Loft by having loft curves going opposite directions.

[clem.granger]

Im dumb your great !

Thanks a lot Joseph, have a good day !