MatTransform.py File Reference

Transformation formalism for PyPO. More...

Functions
def	PyPO.MatTransform.MatRotate (theta, matAppend=None, pivot=None, radians=False)
	Generate a 3D rotation matrix and append to previous matrix. More...
def	PyPO.MatTransform.MatTranslate (trans, matAppend=None)
	Generate a 3D translation matrix and append to previous matrix. More...
def	PyPO.MatTransform.InvertMat (mat)
	Invert a transformation matrix, both the rotational and translational part. More...

Detailed Description

Transformation formalism for PyPO.

This script contains the methods for applying matrix transformations to objects.

Function Documentation

InvertMat()

def PyPO.MatTransform.InvertMat

(

mat

)

Invert a transformation matrix, both the rotational and translational part.

Parameters

mat	Full 4D affine transformation matrix.

Returns

matInv Full 4D affine inverse transformation matrix.

MatRotate()

def PyPO.MatTransform.MatRotate	(		theta,
			matAppend = None,
			pivot = None,
			radians = False
	)

Generate a 3D rotation matrix and append to previous matrix.

The appending is done by right matrix multiplication of the old transformation matrix with the rotation matrix.

Parameters

theta	Numpy array of length 3 containing the xyz rotation angles.
matAppend	The previous matrix. Defaults to identity matrix.
pivot	Pivot for the rotation. Defaults to origin.
radians	Whether theta is in radians or degrees. Defaults to False (degrees).

Returns

matOut Full 4D affine transformation matrix.

MatTranslate()

def PyPO.MatTransform.MatTranslate	(		trans,
			matAppend = None
	)

Generate a 3D translation matrix and append to previous matrix.

The appending is done by right matrix multiplication of the old transformation matrix with the translation matrix.

Parameters

trans	Numpy array of length 3 containing the xyz translations, in mm.
matAppend	The previous matrix. Defaults to identity matrix.

Returns

matOut Full 4D affine transformation matrix.