# affine2d

(Not recommended) 2-D affine geometric transformation using postmultiply convention

`affine2d`

is not recommended. Use the `affinetform2d`

object instead. For more information, see Version History.

## Description

An `affine2d`

object stores information about a 2-D affine
geometric transformation using the postmultiply convention, and enables forward and
inverse transformations.

## Creation

## Properties

## Object Functions

`invert` | Invert geometric transformation |

`isRigid` | Determine if geometric transformation is rigid transformation |

`isSimilarity` | Determine if geometric transformation is similarity transformation |

`isTranslation` | Determine if geometric transformation is pure translation |

`outputLimits` | Find output spatial limits given input spatial limits |

`transformPointsForward` | Apply forward geometric transformation |

`transformPointsInverse` | Apply inverse geometric transformation |

## Examples

## Extended Capabilities

## Version History

**Introduced in R2013a**