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The volIds for the ribbons were updated to provide for the new segments in the x top and side ribbons. The ribbon id's are formed with 6 fields (in xmlGeoDbs v1r39p3):

1. Wiki Markup\[0\] field = fLATObjects, value = eLATACD(=1)unmigrated-wiki-markup
2. \[1\] field = fACDFace, value in the range \ [0,4\]. The negative X face is 1, then continue counterclockwise in numbering the remaining side faces.
3. Wiki Markup\[2\] field = fACDCmp, value = eACDRibbon (= 41)unmigrated-wiki-markup
4. \[3\] field = fMeasure, value = eMeasureX (resp. eMeasureY) for ribbons whose short dimension  is parallel to short dimension  is parallel to x-axis (resp. y-axis).
5. Wiki Markup\[4\] field = fRibbon, values in the range \ [0, 3\].unmigrated-wiki-markup
6. \[5\] field = fSegment. Value is always 0 for side faces. For x-measuring top ribbons (whose continuation runs along \ +Y and \ -Y faces) range is in \ [1, 5\] for normal segments under top tiles. Value = 6 for extra little pieces of ribbon behind vertical part of top bent tiles. y-measuring top ribbons are modeled with a single volume, fSegment = 1.

So, in particular, the side ribbons are /1/<face (1-4)>/41/<meas-direction>/<ribbon # (0-3>/0

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