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I want to define a sphere with a center that sits on one face of my domain, [0., 0.5, 0.5] in unitary coordinates. However, the boundary conditions in this case are not periodic, and so I don't want periodicity.
I agree that it should be possible to turn off periodicity for a sphere. Before it's fixed, I think you can use a boolean container (test this below, I haven't!):
base_sp = pf.h.sphere([0, 0.5, 0.5], 0.25) box = pf.h.region([0.5]*3, [0.75, 0.25, 0.25], [1, 0.75, 0.75]) sp = pf.h.boolean([base_sp, "NOT", box])
Let me know if you run into trouble.
-- Stephen Skory email@example.com http://stephenskory.com/ 510.621.3687 (google voice)