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B.3.8 Face Tree


Index: 59
Scheme symbol: xf-face-tree
C macro: XF_FACE_TREE
Status: only for grids with hanging-node adaption

This section indicates the face hierarchy of the grid containing hanging nodes. The format of the section is as follows:

(59 (face-id0 face-id1 parent-zone-id child-zone-id)
(
 number-of-kids kid-id-0 kid-id-1 ... kid-id-n
 .
 .
 .
))

where,


face-id0 = index of the first parent face in the section
face-id1 = index of the last parent face in the section
parent-zone-id = ID of the zone containing parent faces
child-zone-id = ID of the zone containing children faces
number-of-kids = the number of children of the parent face
kid-id-n = the face IDs of the children

These are in hexadecimal format.


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