This library builds a curve parallel to the given curve.
A parallel curve is also called an offset curve and this is the preferred term in CAGD. In other geometric contexts, the term offset can also refer also to translation.
<script type="text/javascript" src="parallel-curve.js"></script>
var points = [{x:350, y:75}, {x:379, y:161}, {x:469, y:161}, {x:397, y:215}];
var offset = 10;
var isLeft = true;
var parallel = ParallelCurve.create(points, offset, isLeft);
Also you can find examples in a demo directory.
