Tecplot
ZoneType is FEPOLYGON or FEPOLYHEDRON
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2d case
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node cell face figure
Face-1 (1,2)
Face-2 (2,3)
Face-3 (3,4)
Face-4 (4,5)
Face-5 (5,6)
Face-6 (6,1)
Face-7 (3,7)
Face-8 (7,8)
Face-9 (8,9)
Face-10 (9,10)
Face-11 (10,4)
Face-12 (10,11)
Face-13 (11,12)
Face-14 (12,13)
Face-15 (13,5 )
Face-1 :(1 ,2 ) Leftelem : 0 RightElem 1
Face-2 :(2 ,3 ) Leftelem : 0 RightElem 1
Face-3 :(3 ,4 ) Leftelem : 2 RightElem 1
Face-4 :(4 ,5 ) Leftelem : 3 RightElem 1
Face-5 :(5 ,6 ) Leftelem : 0 RightElem 1
Face-6 :(6 ,1 ) Leftelem : 0 RightElem 1
Face-7 :(3 ,7 ) Leftelem : 0 RightElem 2
Face-8 :(7 ,8 ) Leftelem : 0 RightElem 2
Face-9 :(8 ,9 ) Leftelem : 0 RightElem 2
Face-10 :(9 ,10) Leftelem : 0 RightElem 2
Face-11 :(10,4 ) Leftelem : 3 RightElem 2
Face-12 :(10,11) Leftelem : 0 RightElem 3
Face-13 :(11,12) Leftelem : 0 RightElem 3
Face-14 :(12,13) Leftelem : 0 RightElem 3
Face-15 :(13,5 ) Leftelem : 0 RightElem 3
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Hexagon and 1 Octagon
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Hexagon and 1 Octagon Node Face Cell Figure