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Materials for spheres generated via makeCloud

Asked by Christopher Stanbridge

I noticed, when reviewing the documentation for the makeCloud sphere-packing function, that it was not possible to specify a material for the spheres as one of the parameters. How would one generate a cloud of spheres of a specific material? Furthermore, what material is used by default -- is it the most recently created one?

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Raphaël Maurin
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Best Raphaël Maurin (raphael-maurin) said : 		#1

Hi Christopher,

I am using makecloud and specifying a material, for that I do :

#Define the material
O.materials.append(ViscElMat(cn=cnPart, cs=csPart, kn=knPart, ks=ksPart, density=densPart, frictionAngle=partFrictAngle, label='sphereMat'))
partCloud = pack.SpherePack()
#Specify the property of the particle cloud wanted
partCloud.makeCloud(minCorner=(0,widthCell/2.0,groundPosition+radius*4),maxCorner=(length,widthCell/2.0,heightCell),rRelFuzz=0,rMean=radius, num = 1000)
#send to simulation assigning the material
partCloud.toSimulation(material='sphereMat')

And for your second question, I would say (but I am not sure) that it is indeed the most recently created material that is assigned if you don't specify anything. You can check that easily by yourself, by trying it.

Raphael

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Christopher Stanbridge (cws105) said : 		#2

Thanks Raphaël Maurin, that solved my question.