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import identity from "./identity.js";
export default function(transform) {
if (transform == null) return identity;
var x0,
y0,
kx = transform.scale[0],
ky = transform.scale[1],
dx = transform.translate[0],
dy = transform.translate[1];
return function(input, i) {
if (!i) x0 = y0 = 0;
var j = 2, n = input.length, output = new Array(n);
output[0] = (x0 += input[0]) * kx + dx;
output[1] = (y0 += input[1]) * ky + dy;
while (j < n) output[j] = input[j], ++j;
return output;
};
}