Awesome
gl-mat3 
Part of a fork of @toji's
gl-matrix split into smaller pieces: this
package contains glMatrix.mat3.
Usage
mat3 = require('gl-mat3')
Will load all of the module's functionality and expose it on a single object. Note that any of the methods may also be required directly from their files.
For example, the following are equivalent:
var scale = require('gl-mat3').scale
var scale = require('gl-mat3/scale')
API
- mat3.adjoint()
- mat3.clone()
- mat3.copy()
- mat3.create()
- mat3.determinant()
- mat3.frob()
- mat3.fromMat2d()
- mat3.fromMat4()
- mat3.fromQuat()
- mat3.identity()
- mat3.invert()
- mat3.multiply()
- mat3.normalFromMat4()
- mat3.rotate()
- mat3.scale()
- mat3.str()
- mat3.translate()
- mat3.transpose()
mat3.adjoint(out:mat3, a:mat3)
Calculates the adjugate of a mat3
mat3.clone(a:mat3)
Creates a new mat3 initialized with values from an existing matrix
mat3.copy(out:mat3, a:mat3)
Copy the values from one mat3 to another
mat3.create()
Creates a new identity mat3
mat3.determinant(a:mat3)
Calculates the determinant of a mat3
mat3.frob(a:mat3)
Returns Frobenius norm of a mat3
mat3.fromMat2d(out:mat3, a:mat2d)
Copies the values from a mat2d into a mat3
mat3.fromMat4(out:mat3, a:mat4)
Copies the upper-left 3x3 values into the given mat3.
mat3.fromQuat(out:mat3, q:quat)
Calculates a 3x3 matrix from the given quaternion
mat3.identity(out:mat3)
Set a mat3 to the identity matrix
mat3.invert(out:mat3, a:mat3)
Inverts a mat3
mat3.multiply(out:mat3, a:mat3, b:mat3)
Multiplies two mat3's
mat3.normalFromMat4(out:mat3, a:mat4)
Calculates a 3x3 normal matrix (transpose inverse) from the 4x4 matrix
mat3.rotate(out:mat3, a:mat3, rad:Number)
Rotates a mat3 by the given angle
mat3.scale(out:mat3, a:mat3, v:vec2)
Scales the mat3 by the dimensions in the given vec2
mat3.str(mat:mat3)
Returns a string representation of a mat3
mat3.translate(out:mat3, a:mat3, v:vec2)
Translate a mat3 by the given vector
mat3.transpose(out:mat3, a:mat3)
Transpose the values of a mat3
License
zlib. See LICENSE.md for details.