{ "source": "analytic", "method": "box 40x30x20 with every edge rounded r=3 = inner box (34x24x14) grown by a ball r (Steiner): V = abc + 2r(ab+bc+ca) + pi r^2 (a+b+c) + 4/3 pi r^3, A = 2(ab+bc+ca) + 2 pi r (a+b+c) + 4 pi r^2; faces 6 planes + 12 quarter cylinders + 8 sphere octants", "body_count": 1, "volume_mm3": 23340.84937505542, "area_mm2": 4726.265361880023, "center_of_mass": [ 20.0, 15.0, 10.0 ], "bbox": { "min": [ 0.0, 0.0, 0.0 ], "max": [ 40.0, 30.0, 20.0 ] }, "faces": 26 }