ctx.path(d, [offsetX, offsetY, fill, stroke]);
ctx.path({
d, x, y, fill, stroke
});
Delta.path(...);
dxycurve(index, [value])before(index, [value, turnMoveToLine])after(index, [value])remove(index)push(method, attrs) or push(curve)eachmapmoveTo, etctransformPath