Undefined CellType in river-deadend-narrow.track

[GMMDMDIDEMS]

In the file river-deadend-narrow.track an undefined CellType i is used:

dim: 28 63
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xxxxx.....xxxxxxxx.....xxxxxxxxx.....xxx.....xxxxxxxx.....xxxxx
xxxxx.....xxxxxxxx.....xxxxxxxxx.....xxx.....xxxxxxxx.....xxxxx
xxxxx.....xxxxxxx.......xxxxxxxx.....xx.......xxxxxxx.....xxxxx
xxxxxx.....xxxx.........xxxxxxxxx.....x.........xxxx.....xxxxxx
xxxxxxx...........xxxxxxxxxxxxxxx..........xx...........xxxxxxx
xxxxxxxxx......xxxxxxxiiiiixxxxxxxxx.....xxxxxxx......xxxxxxxxx
xxxxxxxxxx....xxxxxxxxiiiixxxxxxxxxxx....xxxxxxxx....xxxxxxxxxx
xxxxxxxxxx....xxxxxxxxiiiixxxxxxxxxxx....xxxxxxxx....xxxxxxxxxx
xxxxxxxxxx.....xxxxxxiiiiiiiiixxx.........xxxxxx.....xxxxxxxxxx
xxxxxxxxxx.....xxxxiiiixxxiiiiix.....xxx....xxxx.....xxxxxxxxxx
xxxxxxxxxxxx...........xxx...........xxx...........xxxxxxxxxxxx
xxxxxxxxxxxxx........xxxxxxx.......xxxxxxx........xxxxxxxxxxxxx
xxxxxxxxxxxxxx....xxxxxxxxxxx.....xxxxxxxxxxx....xxxxxxxxxxxxxx
xxxxxxxxxxxxxx....xxxxxxxxxx.......xxxxxxxxxx....xxxxxxxxxxxxxx
xxxxxxxxxxxxxx....xxxxxxxx...........xxxxxxxx....xxxxxxxxxxxxxx
xxxxxxxxxxxxxxx.......xx......xxx......xx.......xxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxx..........xxxxxxx..........xxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxx......xxxxxxxxxxx......xxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxx.....xxxxxxxxxxx.....xxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxx.....xxxxxxxxxxx.....xxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxiiiiixxxxxxxiiiiixxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxiiiiixxxiiiiixxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxiiiiiiiiixxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxiiiiiiixxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxiiiiixxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxiiiiixxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxsssssxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Should i be replaced by .?

[koehlma]

To be honest, I am not sure what the i stands for. I will check with the person who created them and then come back to you.

[koehlma]

The i marks “interesting regions”. Yes, they can be replaced with ..