Morpho (version 2.2)

deformGrid3d: visualise differences between two superimposed sets of 3D landmarks

Description

visualise differences between two superimposed sets of 3D landmarks by deforming a cubic grid based on a thin-plate spline interpolation

Usage

deformGrid3d(matrix, tarmatrix, ngrid = 0, lwd = 1, showaxis = c(1, 2),
  show = c(1, 2), lines = TRUE, lcol = 1, add = FALSE, col1 = 2,
  col2 = 3, type = c("s", "p"), size = NULL, pcaxis = FALSE)

Arguments

matrix

reference matrix containing 3D landmark coordinates or mesh of class "mesh3d"

tarmatrix

target matrix containing 3D landmark coordinates or mesh of class "mesh3d"

ngrid

number of grid lines to be plotted; ngrid=0 suppresses grid creation.

lwd

width of lines connecting landmarks.

showaxis

integer (vector): which dimensions of the grid to be plotted. Options are combinations of 1,2 and 3.

show

integer (vector): if c(1:2) both configs will be plotted, show = 1 only plots the reference and show = 2 the target

lines

logical: if TRUE, lines between landmarks will be plotted.

lcol

color of lines

add

logical: add to existing rgl window.

col1

color of "matrix"

col2

color of "tarmat"

type

"s" renders landmarks as spheres; "p" as points - much faster for very large pointclouds.

size

control size/radius of points/spheres

pcaxis

logical: align grid by shape's principal axes.

See Also

tps3d

Examples

data(nose)
deformGrid3d(shortnose.lm,longnose.lm,ngrid=10)