Yade

clump generation for sphere larger than one given size

Asked by Weimin Song

Hey all,

        Two different kinds materials (spheres) were generated by using makecloud. psdSizes and psdCumm are also considered. Now, I want to replace part spheres (radius larger than 0.01) by clumps. I also want to distinguish the two type materials by different color after the clump operation. Anyone could give some help?

        I wrote several lines code, however, which does not satisfy my need. https://www.dropbox.com/s/s7ppf38oq3kbu8f/2.py?dl=0

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Christian Jakob (jakob-ifgt) said : 		#1

hi,

using O.bodies.replaceByClumps() within a loop is not a good idea.

to solve your problem i see two ways:

1.) you generate particles with radius < 0.01 first, then you run replaceByClumps() and generate the rest of the particles afterwards

2.) you can modify replaceByClumps() function in c++ [1], so that you can exclude particles with an excludeList like in updateClumpProperties() [2].

[1] https://github.com/yade/trunk/blob/master/py/wrapper/yadeWrapper.cpp#L210
[2] https://yade-dem.org/doc/yade.wrapper.html?highlight=updateclump#yade.wrapper.BodyContainer.updateClumpProperties

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