Semi-rectangular (shoe-box like)
4. Please select type of cell outline in valve view.
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Rotational symmetry of cell face outline 180 degrees, with the ends being opposite reflections of each other
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Rotational symmetry of cell face outline 180 degrees, one end is a reflection of the other, as are the two halves
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Rotational symmetry of cell face outline is 360 degrees ; one end is a reflection of the other (but the halves are not), i.e. semi-circular or crescent shaped
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Rotational symmetry of cell face outline is 360 degrees with one end broader than other, though may be only slightly; may be ~violin shaped
