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