normals

normals
=======
Estimates normals for surface meshes.

Installation
============
Using npm:

npm install normals

Example
=======
Here is how to compute the vertex and face normals for the Stanford bunny:

``js
var bunny = require("bunny");
bunny.vertexNormals = require("normals").vertexNormals(bunny.cells, bunny.positions[,epsilon]);
bunny.faceNormals = require("normals").faceNormals(bunny.cells, bunny.positions[,epsilon]);
`

require("normals").vertexNormals(cells, positions[,epsilon])
----------------------------------------------------
This estimates the vertex normals for an oriented mesh.

* cells is an array of indexed vertex positions
* positions is an array of vertex positions

Returns: An array of length = positions.length of the per-vertex normals.


require("normals").faceNormals(cells, positions[,epsilon])
----------------------------------------------------
This estimates the face normals for an oriented mesh.

* cells is an array of indexed vertex positions
* positions is an array of vertex positions

Returns: An array of length = cells.length` of the per-face normals.

Credits
=======
(c) 2013 Mikola Lysenko. BSD