Momocs (version 0.1-01)

tps.grid: Thin Plate Splines deformation grids between two shapes.

Description

Passed with a Nef-object, and two positions on the set defined by $PC_1$ and $PC_2$, calculates and plots deformation grids, "vector field" or iso-deformation lines between these two shapes.

Usage

tps.grid(Nef, fr, to, nb.pts = 50, amp = 1, grid.size = 50,
		 grid.col = "grey40", cont = TRUE,
		 cont.col = c("dodgerblue3", "firebrick3"), cont.lwd = rep(3,2)) 
		  
tps.iso(Nef, fr, to, nb.pts = 200, amp = 1, iso.pts = 1000,
		col.pal = topo.colors, col.lev = 500,
		cont.to = TRUE, cont.fr = TRUE,  cont.lev = 10,
		cont.col = c("dodgerblue3", "firebrick3"),  cont.lwd = rep(3,2))
			
tps.vf(Nef, fr, to, nb.pts = 100, amp = 1, arr.nb = 300, 
		arr.len = 0.05, arr.ang = 30, arr.col = "grey40",
		arr.pal = FALSE, arr.palette = topo.colors, arr.pal.lev = 20,
		arr.lwd = 1, cont.col = c("dodgerblue3", "firebrick3"),
		cont.lwd = rep(3, 2))

Arguments

Nef

the Nef object

fr

a vector with two numerics indicating the $(x; y)$ coordinates of the starting point. If not provided, locator(1) is called

to

a vector with two numerics indicating the $(x; y)$ coordinates of the ending point. If not provided, locator(1) is called

nb.pts

integer indicating the number of points used to calculate deformation grids

amp

a numeric indicating magnifying factor for deformations

cont

logical indicating whether to plot original and deformed shapes

cont.to

logical indicating whether to plot the original shape

cont.fr

logical indicating whether to plot the deformed shape

cont.col

integer or character indicating the col of the two outlines compared

cont.lwd

a numeric indicating a vector containing the lwd of the two outlines compared

grid.size

a numeric indicating deformation grid size

grid.col

code{integer} or a character indicatinf the deformation grid color

iso.pts

a integer indicating the number of iso points to use for isolines calculation

col.pal

a color palette such as rainbow, heat.colors or such as build by colorRampPalette for isolines drawing

col.lev

integer indicating how many color levels to use

cont.lev

integer indicating how many isolines to calculate

arr.nb

integer indicating how many arrows to display

arr.len

a numeric indicating the arrows length

arr.ang

a numeric indicating the arrows angle

arr.col

integer or a character indicating the arrows color

arr.pal

logical indicating whether to use or not a color palette for drawing arrows

arr.palette

a color palette such as rainbow, heat.colors or such as build by colorRampPalette

arr.pal.lev

integer specifying how many levels to use for the color palette

arr.lwd

a numeric indicating the arrows lwd

Examples

data(bottles.nef)

tps.grid(bottles.nef, fr=c(-0.05, -0.05), to=c(0.15, 0.05))
tps.vf(bottles.nef, fr=c(-0.05, -0.05), to=c(0.15, 0.05))
tps.iso(bottles.nef, fr=c(-0.05, -0.05), to=c(0.15, 0.05))