{ "source": "analytic", "method": "revolve of the 12-segment (r,z) polygon about Z: V = 2 pi int r dA, Mz = 2 pi int r z dA, A = 2 pi int r ds (Pappus)", "body_count": 1, "volume_mm3": 168510.84114835176, "area_mm2": 23718.644332702832, "center_of_mass": [ 0.0, 0.0, 19.999999999999996 ], "bbox": { "min": [ -40.0, -40.0, 0.0 ], "max": [ 40.0, 40.0, 40.0 ] }, "faces": 12 }