Whale side-view shape

This is a data frame containing 45 points specifying the shape of a right whale, viewed from the side. It was created by digitizing the whale shape (ignoring fins) that is provided in the necropsy reports of Daoust et al. (2018). The data frame contains x and y, which are distances nondimensionalized by the range in x; that is, x ranges from 0 to 1. The point at the front of the whale is designated as x=y=0.

Usage

whaleShape()

Value

whaleShape returns a data frame with entries named x and y, which trace out the side-view shape of a Right Whale, using values digitized from a diagram in Daoust et al. (2017).

References

Daoust, Pierre-Yves, Emilie L. Couture, Tonya Wimmer, and Laura Bourque. "Incident Report. North Atlantic Right Whale Mortality Event in the Gulf of St. Lawrence, 2017." Canadian Wildlife Health Cooperative, Marine Animal Response Society, and Fisheries and Oceans Canada, 2018. https://publications.gc.ca/site/eng/9.850838/publication.html.

Author

Dan Kelley

Examples

library(whalestrike)
shape <- whaleShape()
plot(shape$x, shape$y, asp = 1, type = "l")
polygon(shape$x, shape$y, col = "lightgray")
lw <- 13.7
Rmax <- 0.5 * lw * diff(range(shape$y))
mtext(sprintf("Max. radius %.2fm for %.1fm-long whale", Rmax, lw), side = 3)