Tfmat_from_qform

Sources: afni.nimh.nih.gov/pub/dist/doc/nifti/nifti1_h.pdf,
brainder.org/2012/09/23/the-nifti-file-format/,
nipy.org/nibabel/nifti_images.html,
brainvoyager.com/bv/doc/UsersGuide/CoordsAndTransforms/CoordinateSystems.html

internal

CIFTI files contain brain imaging data in "grayordinates," which
represent the gray matter as cortical surface vertices (left and right) and
subcortical voxels (cerebellum, basal ganglia, and other deep gray matter).
'ciftiTools' provides a unified environment for reading, writing,
visualizing and manipulating CIFTI-format data. It supports the "dscalar,"
"dlabel," and "dtseries" intents. Grayordinate data is read in as a "xifti"
object, which is structured for convenient access to the data and metadata,
and includes support for surface geometry files to enable
spatially-dependent functionality such as static or interactive
visualizations and smoothing.

Amanda Mejia

ciftiTools

Tools for Reading, Writing, Viewing and Manipulating CIFTI Files

Damon Pham

John Muschelli

Tfmat_from_qform function

<dl><dt>pixdim</dt>
<dd>Numeric vector of length <code>8</code>. Only the first four entries
are used.</dd>
<dt>quatern_bcd</dt>
<dd>Numeric vector of length <code>3</code>, giving quaterns
b, c, and d.</dd>
<dt>qoffset_xyz</dt>
<dd>Numeric vector of length <code>3</code>, giving qoffsets
x, y, and z.</dd></dl>

Arguments

Derive transformation matrix from qform metadata in NIFTI header — Tfmat_from_qform

<dl>

<dt>pixdim</dt>
<dd>Numeric vector of length <code>8</code>. Only the first four entries
are used.</dd>


<dt>quatern_bcd</dt>
<dd>Numeric vector of length <code>3</code>, giving quaterns
b, c, and d.</dd>


<dt>qoffset_xyz</dt>
<dd>Numeric vector of length <code>3</code>, giving qoffsets
x, y, and z.</dd>

</dl>

Tfmat_from_qform: Derive transformation matrix from `qform` metadata in NIFTI header

Description

Usage

Value

Arguments