How to add/delete a particle from particles generated by the RandomPackerBox?

Hi Tsai,

One can manually add/remove particles from the list generated by RandomBoxPacker prior to calling sim.createParticles(). Here's an example of how to do this:

geoRandomBlock = RandomBoxPacker (
...
)
geoRandomBlock.generate()
geoRandomBlock_particles = geoRandomBlock.getSimpleSphereCollection()

#loop thru the particle list and find the particle(s) one wishes to remove:
myParticles = SimpleSphereCollection()
for pp in geoRandomBlock_particles:
   if (pp is not to be removed):
      myParticles.create(pp)

#one can then add more particles to the myParticles list:
myParticles.create(SimpleSphere(centre,radius,id,tag,mass))

#finally add the new list of particles to the simulation:
sim.createParticles(myParticles)

Cheers,

Dion