tps_iso: Deformation isolines using Thin Plate Splines.

In Momocs: Morphometrics using R

Deformation isolines using Thin Plate Splines.

Description

tps_iso calculates deformations between two configurations and map them with or without isolines.

Usage

tps_iso(
  fr,
  to,
  amp = 1,
  grid = FALSE,
  over = 1.2,
  palette = col_spring,
  iso.nb = 1000,
  iso.levels = 12,
  cont = TRUE,
  cont.col = "black",
  poly = TRUE,
  shp = TRUE,
  shp.border = col_qual(2),
  shp.lwd = c(2, 2),
  shp.lty = c(1, 1),
  legend = TRUE,
  legend.text,
  ...
)

Arguments

fr	The reference (x; y) coordinates
to	The target (x; y) coordinates
amp	An amplification factor of differences between fr and to
grid	whether to calculate and plot changes across the graphical window TRUE or just within the starting shape (FALSE)
over	A numeric that indicates how much the thin plate splines extends over the shapes
palette	A color palette such those included in Momocs or produced with colorRampPalette
iso.nb	A numeric. The number of points to use for the calculation of deformation
iso.levels	numeric. The number of levels for mapping the deformations
cont	logical. Whether to draw contour lines
cont.col	A color for drawing the contour lines
poly	whether to draw polygons (for outlines) or points (for landmarks)
shp	logical. Whether to draw shapes
shp.border	Two colors for drawing the borders
shp.lwd	Two lwd for drawing shapes
shp.lty	Two lty fro drawing the shapes
legend	logical whether to plot a legend
legend.text	some text for the legend
...	additional arguments to feed coo_draw

Value

No returned value

See Also

Other thin plate splines: tps2d(), tps_arr(), tps_grid(), tps_raw()

Examples

botF <- efourier(bot)
x <- MSHAPES(botF, 'type', nb.pts=80)$shp
fr <- x$beer
to <- x$whisky
tps_iso(fr, to, iso.nb=200, amp=3)
tps_iso(fr, to, iso.nb=200, amp=3, grid=TRUE)

Momocs documentation built on Nov. 13, 2023, 5:07 p.m.