https://github.com/mikolalysenko/normals

Computes normals for triangulated meshes
https://github.com/mikolalysenko/normals

Last synced: about 2 months ago
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Computes normals for triangulated meshes

• Host: GitHub
• URL: https://github.com/mikolalysenko/normals
• Owner: mikolalysenko
• License: mit
• Created: 2013-02-06T16:20:51.000Z (almost 12 years ago)
• Default Branch: master
• Last Pushed: 2016-05-20T22:27:35.000Z (over 8 years ago)
• Last Synced: 2024-10-19T02:23:10.698Z (2 months ago)
• Language: JavaScript
• Size: 5.86 KB
• Stars: 17
• Watchers: 5
• Forks: 4
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
normals

=======

Estimates normals for surface meshes.

Installation

============

Using [npm](https://npmjs.org/):

    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