neurospin.datasets.transforms.affine_transform

Module: neurospin.datasets.transforms.affine_transform

Inheritance diagram for nipy.neurospin.datasets.transforms.affine_transform:

The AffineTransform class

AffineTransform

class nipy.neurospin.datasets.transforms.affine_transform.AffineTransform(input_space, output_space, affine)

Bases: nipy.neurospin.datasets.transforms.transform.Transform

A transformation from an input 3D space to an output 3D space defined by an affine matrix.

It is defined by the affine matrix , and the name of the input and output spaces.

Attributes

affine

Methods

composed_with
get_inverse
inverse_mapping
mapping

__init__(input_space, output_space, affine)

Create a new affine transform object.

Parameters:

input_space: string :

Name of the input space

output_space: string :

Name of the output space

affine: 4x4 ndarray :

Affine matrix giving the coordinate mapping between the input and output space.

composed_with(transform)

Returns a new transform obtained by composing this transform with the one provided.

Parameters:

transform: nipy.core.transforms.transform object :

The transform to compose with.

get_inverse()

Return the inverse transform.

inverse_mapping(x, y, z)

Transform the given coordinate from output space to input space.

Parameters:

x: number or ndarray :

The x coordinates

y: number or ndarray :

The y coordinates

z: number or ndarray :

The z coordinates

mapping(x, y, z)

Transform the given coordinate from input space to output space.

Parameters:

x: number or ndarray :

The x coordinates

y: number or ndarray :

The y coordinates

z: number or ndarray :

The z coordinates