RT Journal T1 Airport noise isoline parallel generating algorithm based on grid edge labeling A1 FENG Xia, HUANG Xixiang PB Journal of Shandong University(Engineering Science) FD 2018-04-20 YR 2018 JF Journal of Shandong University(Engineering Science) JO Journal of Shandong University(Engineering Science) VO 48 IS 2 SP 8 DO 10.6040/j.issn.1672-3961.0.2017.311 K1 grid edge labeling;noise isoline;parallel generation;isoline drawing;elevation filtering;airport noise LK {http://gxbwk.njournal.sdu.edu.cn/EN/article/article_1536.shtml}