DGMFs of large-scale filaments. (a) DGMFs of large-scale filaments as a function of Galactocentric radius. Red-filled circles show DGMFs for filaments in this work. Cyan stars represent those from ATLASGAL filaments (Ge & Wang 2022). Yellow squares denote filaments from Ragan et al. (2014) and green diamonds are from Abreu-Vicente et al. (2016). If a filament also satisfies the bone criteria, a black circle is added to the polygon; (b) DGMF versus Galactic height. Symbols follow the convention of panel a; (c) the distribution of DGMFs for on-arm or offarm filaments. Yellow bars denote filaments in spiral arms and blue hatch marks inter-arm filaments; (d) differences in DGMF between bones and other filaments for three samples. Red boxes are SEDIGISM filaments from this work. Blue boxes represent GMFs from Ragan et al. (2014); Abreu-Vicente et al. (2016). Green boxes mark ATLASGAL filaments. The right boxes for each color are bones and the left ones are other filaments. A box extends from the first quartile to the third quartile of the data, with a line at the median. The whiskers extending from the boxes enclose all of the data except outliers, which are denoted as dots. Numbers above the bottom border are the numbers of bones or other filaments.