Morpho: projRead – R documentation

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projRead

Project points onto the closest point on a mesh

project points onto a given surface and return projected points and normals.

projRead(lm, mesh, readnormals = TRUE, smooth = FALSE, sign = TRUE,
  ...)

`lm`	m x 3 matrix containing 3D coordinates.
`mesh`	character: specify path to mesh file.
`readnormals`	logical: return normals of projected points.
`smooth`	logical: rerturn smoothed normals.
`sign`	logical: request signed distances.
`...`	additional arguments currently not used.

if readnormals = FALSE, a m x 3 matrix containing projected points is returned, otherwise a list, where

`vb`	3 x m matrix containing projected points
`normals`	3 x m matrix containing normals
`quality`	vector containing distances

Stefan Schlager

Detection of inside/outside uses the algorithm proposed in:

Baerentzen, Jakob Andreas. & Aanaes, H., 2002. Generating Signed Distance Fields From Triangle Meshes. Informatics and Mathematical Modelling.

data(nose)
## Not run: 
repro <- projRead(shortnose.lm,shortnose.mesh)

## End(Not run)

Calculations and Visualisations Related to Geometric Morphometrics

v2.8

GPL-2

Authors

Stefan Schlager [aut, cre, cph], Gregory Jefferis [ctb], Dryden Ian [cph]

Initial release

2020-02-26