xul yul xlr ylr classindexThe first four define the bounding box of a defect, first the upper left and then the lower right corner coordinates.
"Classindex" defines defect class index (between 1 and 40, see list below)
Defect class index Defect class name --------------------------------------------- 1 Sound knot 2 Sound knot 3 Dead knot 4 Traversing knot 5 Black knot 6 Pin knots 7 Barkringed knot 8 Rotten knot 9 Round knot 10 Oval knot 11 Arris knot 12 Splay knot 13 Spike knot 14 Edge knot 15 Scattered knots 16 Knot clusters 17 Straight shake 18 Oblique shake 19 Ring shake 20 Wane 21 Bark 22 Pitch pockets 23 Bark pockets 24 Scar 25 Slope of grain 26 Topbreak 27 Compression wood 28 Curly grain 29 Pitch wood 30 Log blue stain 31 Incipient decay, dote 32 Width of annual ring 33 Brown stain 34 Weather gray 35 Mould 36 Feed-roller marks 37 Bad sawn surface 38 Dropping damages (Handling imperfections) 39 Wood Wasp attack 40 Insect holes