kld-affine

- Installation
- Importing
- API

---

A collection of classes used for affine geometry. This currently consists of the following classes:

* Point2D
* Vector2D
* Matrix2D

Installation

``
npm install kld-affine
`

Importing

The following sections indicate how you can import the code for use in various environments.

Node

`javascript
import {Point2D, Vector2D, Matrix2D} = require("kld-affine");
`

ESM in Modern Browsers

`javascript
import {Point2D, Vector2D, Matrix2D} from './node_modules/kld-affine/dist/index-esm.js';
`

Older Browsers

`html


`

Bundlers

`javascript
import {Point2D, Vector2D, Matrix2D} from "kld-affine";
``

API

Point2D

A class used to represent two-dimensional points on a plane. This currently supports the following methods:

* clone
* add
* subtract
* multiply
* divide
* equals
* precisionEquals
* lerp
* distanceFrom
* min
* max
* transform
* toString

Vector2D

A class used to represent a two-dimensional vector. This currently supports the following methods:

* Vector2D.fromPoints
* length
* magnitude
* dot
* cross
* determinant
* unit
* add
* subtract
* multiply
* divide
* angleBetween
* perp
* perpendicular
* project
* transform
* equals
* precisionEquals
* toString

Matrix2D

A class used to represent affine transformations. This current supports the following methods:

* Matrix2D.IDENTITY
* Matrix2D.translation
* Matrix2D.scaling
* Matrix2D.scalingAt
* Matrix2D.nonUniformScaling
* Matrix2D.nonUniformScalingAt
* Matrix2D.rotation
* Matrix2D.rotationAt
* Matrix2D.rotationFromVector
* Matrix2D.xFlip
* Matrix2D.yFlip
* Matrix2D.xSkew
* Matrix2D.ySkew
* multiply
* inverse
* translate
* scale
* scaleAt
* scaleNonUniform
* scaleNonUniformAt
* rotate
* rotateAt
* rotateFromVector
* flipX
* flipY
* skewX
* skewY
* isIdentity
* isInvertible
* getScale
* getDecomposition
* equals
* precisionEquals
* toString