Momocs (version 0.2-03)

tps.grid: Deformation grids using Thin Plate Splines.

Description

tps.grid calculates and plots deformation grids between two configurations.

Usage

tps.grid(fr, to, amp=1, plot.full=TRUE, grid.outside = 0.2,
         grid.size = 20, grid.col   = "grey40",
         shp = TRUE, shp.col =  rep(NA, 2), shp.border=col.gallus(2),
         shp.lwd = c(2, 2), shp.lty = c(1, 1))

Arguments

fr

The reference $(x; y)$ coordinates.

to

The target $(x; y)$ coordinates.

amp

An amplification factor of differences between fr and to.

plot.full

logical. If FALSE graphical window will encompasses the entire outlines but maybe not the entire grid.

grid.outside

A numeric that indicates how much the grid extends beyond the range of outlines. Expressed as a proportion of the latter.

grid.size

A numeric to specify the number of grid cells on the longer axis on the outlines.

grid.col

A color for drawing the grid.

shp

logical. Whether to draw shapes.

shp.col

Two colors for filling the shapes.

shp.border

Two colors for drawing the borders.

shp.lwd

Two lwd for drawing shapes.

shp.lty

Two lty fro drawing the shapes.

Value

• No returned value.

Examples

data(bot)
botF <- eFourier(bot)
x <- meanShapes(botF, "type", nb.pts=80)
fr <- x$beer
to <- x$whisky
tps.grid(fr, to, amp=3, grid.size=40)