geo-3d-transform-mat4

Transforms the positions of a few common geometry position formats by a
gl-mat4 matrix.

Supported formats are:

* Flat arrays [1,2,3,4,5,6]
* Array of arrays [[1,2,3], [4,5,6]]
* Array of TypedArrays [new Float32Array([1,2,3]), new Float32Array([4,5,6])]
* TypedArray new Float32Array([1,2,3,4,5,6])
* ndarray ndarray(new Float32Array([1,2,3,4,5,6]))

Install

``sh
npm install geo-3d-transform-mat4
`

Example


`js
var mat4 = require('gl-mat4');
var tform = require('geo-3d-transform-mat4');

var positions = [
[1, 0, 0],
[0, 1, 0],
[0, 0, 1]
];

var scale = mat4.create();
mat4.scale(scale, scale, [2,2,2]);

var out = tform(positions, scale);

// out = [
// [2, 0, 0],
// [0, 2, 0],
// [0, 0, 2]
// ]
`

API


`js
var tform = require('geo-3d-transform-mat4');
`

#### tform(positions, matrix4)

Returns a copy of positions that has been transformed by matrix4. The output
format will be the same as positions` was provided in.