polygon.soup.to.indexed.mesh

Some mesh file formats like STL do not store the faces as indices into a vertex list ('indexed mesh'), but repeat all vertex coordinates for each face ('polygon soup'). This function creates an indexed mesh from a polysoup.

internal

Provides functions to read and write neuroimaging data in various file formats, with a focus on 'FreeSurfer' <http://freesurfer.net/> formats. This includes, but is not limited to, the following file formats: 1) MGH/MGZ format files, which can contain multi-dimensional images or other data. Typically they contain time-series of three-dimensional brain scans acquired by magnetic resonance imaging (MRI). They can also contain vertex-wise measures of surface morphometry data. The MGH format is named after the Massachusetts General Hospital, and the MGZ format is a compressed version of the same format. 2) 'FreeSurfer' morphometry data files in binary 'curv' format. These contain vertex-wise surface measures, i.e., one scalar value for each vertex of a brain surface mesh. These are typically values like the cortical thickness or brain surface area at each vertex. 3) Annotation file format. This contains a brain surface parcellation derived from a cortical atlas. 4) Surface file format. Contains a brain surface mesh, given by a list of vertices and a list of faces.

Tim Schc3<a4>fer

freesurferformats

Read and Write 'FreeSurfer' Neuroimaging File Formats

Tim Schäfer

polygon.soup.to.indexed.mesh function

<dl><dt>faces_vertex_coords</dt>
<dd>numerical matrix with *n* rows and 3 columns, the vertex coordinates of the faces. Each row contains the x,y,z coordinates of a single vertex, and three consecutive vertex rows form a triangular face.</dd>
<dt>digits</dt>
<dd>the precision (number of digits after decimal separator) to use when to determine whether two x,y,z coords define the same vertex.</dd></dl>

Arguments

Turn polygon soup into indexed mesh. — polygon.soup.to.indexed.mesh

<dl>

<dt>faces_vertex_coords</dt>
<dd>numerical matrix with *n* rows and 3 columns, the vertex coordinates of the faces. Each row contains the x,y,z coordinates of a single vertex, and three consecutive vertex rows form a triangular face.</dd>


<dt>digits</dt>
<dd>the precision (number of digits after decimal separator) to use when to determine whether two x,y,z coords define the same vertex.</dd>

</dl>

polygon.soup.to.indexed.mesh: Turn polygon soup into indexed mesh.

Description

Usage

Value

Arguments