# dedup Eliminating duplicate copies of repeating vectors. If `lt` has a large number of elements, sorting `lt` first and setting `sorted` to `true` will be faster. **Since:** 2.3 ## Parameters - `lt` : A list of vectors. - `sorted` : If `false` (default), use native `search`. If `true`, `lt` must be sorted by zyx (from the last index to the first one) and `dedup` will use binary search internally. ## Examples use <pixel/px_circle.scad>; use <util/dedup.scad>; pts1 = px_circle(10, filled = true); pts2 = [for(p = px_circle(5, filled = true)) p + [10, 0]]; // simple union pts3 = dedup(concat(pts1, pts2)); for(p = pts3) { translate(p) square(1, center = true); }  use <pixel/px_circle.scad>; use <util/sort.scad>; use <util/dedup.scad>; pts1 = px_circle(20, filled = true); pts2 = [for(p = px_circle(10, filled = true)) p + [20, 0]]; sorted_pts = sort(concat(pts1, pts2), by = "vt"); // simple union pts3 = dedup(sorted_pts, sorted = true); for(p = pts3) { translate(p) square(1, center = true); } 