mesh.slice.intersection

For a given axis and coordinate, finds all triangles that straddle the plane and computes the line segment where each crossing triangle intersects the plane. The input surface must have vertices in the same coordinate space as the slice plane definition (typically 0-based CRS).

internal

Provides high-level access to neuroimaging data from standard software packages like 'FreeSurfer' <http://freesurfer.net/> on the level of subjects and groups. Load morphometry data, surfaces and brain parcellations based on atlases. Mask data using labels, load data for specific atlas regions only, and visualize data and statistical results directly in 'R'.

Tim Schc3<a4>fer

fsbrain

Managing and Visualizing Brain Surface Data

Tim Schäfer

mesh.slice.intersection function

<dl><dt>surface</dt>
<dd>an <code>fs.surface</code> instance with vertices in CRS space (0-based), as produced by <code>mesh.ras2crs</code>.</dd>
<dt>axis</dt>
<dd>integer, 1, 2, or 3. The axis perpendicular to the slice plane (1=sagittal, 2=coronal, 3=axial in CRS convention).</dd>
<dt>slice_crs_coord</dt>
<dd>numeric scalar, the coordinate along <code>axis</code> where the slice plane is located. In CRS space (0-based).</dd></dl>

Arguments

Compute intersection of a triangular surface mesh with an axis-aligned plane. — mesh.slice.intersection

<dl>

<dt>surface</dt>
<dd>an <code>fs.surface</code> instance with vertices in CRS space (0-based), as produced by <code>mesh.ras2crs</code>.</dd>


<dt>axis</dt>
<dd>integer, 1, 2, or 3. The axis perpendicular to the slice plane (1=sagittal, 2=coronal, 3=axial in CRS convention).</dd>


<dt>slice_crs_coord</dt>
<dd>numeric scalar, the coordinate along <code>axis</code> where the slice plane is located. In CRS space (0-based).</dd>

</dl>

mesh.slice.intersection: Compute intersection of a triangular surface mesh with an axis-aligned plane.

Description

Usage

Value

Arguments