Fig. 4

Example of a value surface, showing values of sawn timber depending on rotational position and offset of one log. The value is normalized, so that the maximum value corresponds to 1, and all other values are calculated as a share of the maximum. Zero rotation corresponds to the ‘horns down’ position. The circle indicates the maximum value, in this case a position close to the horns down and centered position. “Log 11 1 1” refers to the log number used, which is log 1 from tree 1 in plot 11 of the Swedish Pine Stem Bank [14]