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[Jan Stránský <question672270@xxxxxxxxxxxxxxxxxxxxx>]

Question #672270 on Yade changed:
https://answers.launchpad.net/yade/+question/672270

    Status: Open => Answered

Jan Stránský proposed the following answer:
Hello,

> So I what is the MinCorner (0,0,0) mean : is that x, y z?

yes

> and what is the unit, I assume all units is in meter?

it's arbitrary. Yade just computes numbers, the physical interpretation (i.e. units) is up to you (assuming your units are compatible)
E.g., you assume length to be meters and time to be seconds, you get velocity in m/s
or you can assume lengths to be inches and time to be minutes and you get velocity in inch/minute

> as for Matrix3 , is that i, j k ? i is x, j is y and k is z?

Matrix3 is 3x3 matrix. What do you mean by i,j,k in this case?
The syntax is Matrix3(xx, xy, xz, yx, yy, yz, zx, zy, zz)
In this case, the nonzero terms (xx, yy, zz) corresponds to size of the periodic cell in x,y,z directions. The other terms might be used to skew/rotate it.

> If I want to edited that to 3D problem but does not work..

please always try to be specific why it "does not work". You get error? if yes, what error? Is it still 2D? something completely different?..
I have tried both cases you mentioned and both gave me nice 3D packing..

> Also question how the size is estimate to 0.24

probably to get nice packing for rMean=.005,rRelFuzz=.4,num=400
arguments

cheers
Jan

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