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Re: [Question #679387]: packing of spheres with different properties

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Jan Stránský <question679387@xxxxxxxxxxxxxxxxxxxxx>
Date: Sun, 23 Jan 2022 20:01:02 -0000
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Question #679387 on Yade changed:
https://answers.launchpad.net/yade/+question/679387

Jan Stránský posted a new comment:
Hello,

> I tried what you said

with differences however, which lead to the error

The error (being a bit cryptic, yes) says that at b.mat=mat1 it expects Material instead of int.
You can easily check that mat1 is a number, returned by O.materials.append.

You can either use the material ID

b.mat = O.materials[mat1]

or (as in my answer) us material itself:

mat1 = FrictMat(...) # mat is actual material
mat1id = O.materials.append(mat) # O.materials.append returns material ID
b.mat = mat1 # should be OK

Cheers
Jan

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