polyline-clean

Clean polyline or polygon data: remove duplicate, collinear, null points, etc.

const c = require('polyline-clean')

// remove duplicate, degenerate or collinear segments
c([[0,0], [null,null], [1,1], [1,1], [.5,.5], [1,1], [3,3]])
// === [[0,0], [3,3]]

c(coordinates, options?)

Return new coordinates array with bad points removed. If result is degenerate, null will be returned.

Option | Meaning ---|--- ids | Return indexes in the initial array instead of points. fold | Collapse collinear segments. Can be a number indicating min angle threshold. polygon mode has more rigid folding. Useful to disable it when data has logarithmic fashion. polygon | Apply polygon optimizations: remove coinciding end, collinear end segments, ignore degenerate results.

Related

• parse-poly − parse any polygon/polyline format and return list of coordinates.
• simplify-path − simplify polyline with tolerance.

License

(c) 2018 Dmitry Yv. MIT License