Chaikin's smoothing algorithm for 2D polylines.
var smooth = require('chaikin-smooth') var path = [ [0, 0], [25, 25], [13, 13] ] var smoothedPath = smooth(path)
The result will be:
[ [ 0, 0 ], [ 6.25, 6.25 ], [ 18.75, 18.75 ], [ 22, 22 ], [ 16, 16 ], [ 13, 13 ] ]
Performs the smoothing algorithm on the specified path, returning a list populated with the additional smoothed points. If the input path has a length of <= 2, the result will be a new array with the same points as the input.
output is provided, it will push the points onto the specified path instead of creating a new one. This is useful to build a smooth polyline out of several inputs, or to re-use arrays to avoid GC thrashing. If reusing, you should clear the path first to zero-length.
Note: This uses a strict array test, so it is safe to use
map and other array functions on it:
var smoothedPaths = paths.map(smooth)
MIT, see LICENSE.md for details.