Canvas for Geometric Plotting — canvas • pharos

This is just a wrapper for creating an empty plot with suitable defaults for plotting geometric shapes.

Usage

canvas(xlim = NULL, ylim = xlim, main = NULL, asp = 1, usrbg = "white", ...)

Arguments

xlim, ylim: the xlims and ylims for the plot. Default is c(-1, 1).
main: the main title on top of the plot.
asp: numeric, giving the aspect ratio y/x. (See plot.window() for details. Default is 1.
usrbg: the color of the user space of the plot, defaults to "white".
...: additional arguments are passed to the plot() command.

Value

a list of all the previous values of the parameters changed (returned invisibly)

Details

The plot is created with these settings:
asp = 1, xaxt = "n", yaxt = "n", xlab = "", ylab = "", frame.plot = FALSE.

See also

Other graphics.setup: polarGrid(), setBackCol()

Examples


canvas(7)
text(0, 0, "Hello world!", cex=5)