1,9d0
< /*
<  (c) 2013, Vladimir Agafonkin
<  Simplify.js, a high-performance JS polyline simplification library
<  mourner.github.io/simplify-js
< */
< 
< // to suit your point format, run search/replace for '.x' and '.y';
< // for 3D version, see 3d branch (configurability would draw significant performance overhead)
< 
13,14c4,5
<     var dx = p1.x - p2.x,
<         dy = p1.y - p2.y;
---
>     var dx = p1[0] - p2[0],
>         dy = p1[1] - p2[1];
22,25c13,16
<     var x = p1.x,
<         y = p1.y,
<         dx = p2.x - x,
<         dy = p2.y - y;
---
>     var x = p1[0],
>         y = p1[1],
>         dx = p2[0] - x,
>         dy = p2[1] - y;
29c20
<         var t = ((p.x - x) * dx + (p.y - y) * dy) / (dx * dx + dy * dy);
---
>         var t = ((p[0] - x) * dx + (p[1] - y) * dy) / (dx * dx + dy * dy);
32,33c23,24
<             x = p2.x;
<             y = p2.y;
---
>             x = p2[0];
>             y = p2[1];
41,42c32,33
<     dx = p.x - x;
<     dy = p.y - y;
---
>     dx = p[0] - x;
>     dy = p[1] - y;