https://github.com/stackgl/gl-mat3
gl-matrix's mat3, split into smaller pieces
https://github.com/stackgl/gl-mat3
Last synced: about 1 year ago
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gl-matrix's mat3, split into smaller pieces
- Host: GitHub
- URL: https://github.com/stackgl/gl-mat3
- Owner: stackgl
- License: zlib
- Created: 2014-07-17T10:00:38.000Z (almost 12 years ago)
- Default Branch: master
- Last Pushed: 2018-08-01T18:43:55.000Z (almost 8 years ago)
- Last Synced: 2025-03-30T18:51:09.856Z (about 1 year ago)
- Language: JavaScript
- Size: 8.79 KB
- Stars: 18
- Watchers: 13
- Forks: 1
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE.md
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README
# gl-mat3 [](http://github.com/badges/stability-badges)
Part of a fork of [@toji](http://github.com/toji)'s
[gl-matrix](http://github.com/toji/gl-matrix) split into smaller pieces: this
package contains `glMatrix.mat3`.
## Usage
[](https://nodei.co/npm/gl-mat3/)
### `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:
``` javascript
var scale = require('gl-mat3').scale
var scale = require('gl-mat3/scale')
```
## API
- [mat3.adjoint()](#mat3adjointoutmat3amat3)
- [mat3.clone()](#mat3cloneamat3)
- [mat3.copy()](#mat3copyoutmat3amat3)
- [mat3.create()](#mat3create)
- [mat3.determinant()](#mat3determinantamat3)
- [mat3.frob()](#mat3frobamat3)
- [mat3.fromMat2d()](#mat3frommat2doutmat3amat2d)
- [mat3.fromMat4()](#mat3frommat4outmat3amat4)
- [mat3.fromQuat()](#mat3fromquatoutmat3qquat)
- [mat3.identity()](#mat3identityoutmat3)
- [mat3.invert()](#mat3invertoutmat3amat3)
- [mat3.multiply()](#mat3multiplyoutmat3amat3bmat3)
- [mat3.normalFromMat4()](#mat3normalfrommat4outmat3amat4)
- [mat3.rotate()](#mat3rotateoutmat3amat3radnumber)
- [mat3.scale()](#mat3scaleoutmat3amat3vvec2)
- [mat3.str()](#mat3strmatmat3)
- [mat3.translate()](#mat3translateoutmat3amat3vvec2)
- [mat3.transpose()](#mat3transposeoutmat3amat3)
## 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](http://en.wikipedia.org/wiki/Zlib_License). See [LICENSE.md](http://github.com/hughsk/gl-mat3/blob/master/LICENSE.md) for details.