projRead: Project points onto the closest point on a mesh

In Morpho: Calculations and Visualisations Related to Geometric Morphometrics

Project points onto the closest point on a mesh

Description

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

Usage

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

Arguments

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.

Value

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

Author(s)

Stefan Schlager

References

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.

See Also

closemeshKD

Examples

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

## End(Not run)

Morpho documentation built on June 22, 2024, 7:19 p.m.