A super-fast algorithm for matching two sets of polylines and showing the difference. Primarily used for comparing road networks from different datasets.
Given arrays a and b, like linematch(a, b, 0.001), linematch will return a new
array that contains all segments in a that are not matched with segments in b.
If the arrays match exactly, the returned value will be an empty array, [].
importlinematchfrom'linematch';// given two arrays of linestrings and a threshold value,// outputs a difference as an array of linestringsconstresult=linematch(lines1,lines2,0.0001);