What is the best way to create a cuboidal box of particles?

Hi Hashir,
please provide a complete MWE [1]

> No suitable packing in database found, running periodic compression.

it is no error, just info message

cheers
Jan

[1] https://yade-dem.org/wiki/Howtoask

Here's what I am trying:

pred = pack.inParallelepiped((0,0,0),(4,0,0),(0,2,0),(0,0,2))
sp = pack.randomDensePack(pred,spheresInCell=2000,radius=3.5e-3)
O.bodies.append(sp)

The same code is working for the hyperboloid example given in the documentation. But not for the parallelepiped. It never goes past the "No suitable packing in....." message.

Thanks, the complete code made it clear :-) the problem here is number of particles. assuming diameter=7e-3, i.e. in line it would be approx. 150 particles per unit. In your box of size 4x2x2 there would be (4*150)*(2*150)*(2*150)=54e6 particles.
On my 4GB RAM computer, already 1e6 particles occupies significant amount of memory, your example made my computer freeze completely :-)

radius=3.5e-2 works perfectly in my case

back to your original question, pack.inAlignedBox is a special case of pack.inParallelepiped, so the approaches are pretty equivalent. For a box, I would prefer pack.inAlignedBox as the meaning is clearer and the parameters are more readable in case of box

cheers
Jan

Hey Jan

You're right. pack.inAlignedBox did work like a charm. And the code works efficiently taking radius around that value.
Thank You!

Regards
Hashir