Layer a line

Loon's displays that are based on Cartesian coordinates (i.e. scatterplot, histogram and graph display) allow for layering visual information including polygons, text and rectangles.

l_layer_line(widget, x, y = NULL, color = "black", linewidth = 1,
  dash = "", label = "line", parent = "root", index = 0, ...)

Arguments

widget	widget path name as a string
x	the coordinates of line. Alternatively, a single plotting structure, function or any R object with a plot method can be provided as x and y are passed on to xy.coords
y	the y coordinates of the line, optional if x is an appropriate structure.
color	color of line
linewidth	linewidth of outline
dash	dash pattern of line, see https://www.tcl.tk/man/tcl8.6/TkCmd/canvas.htm#M26
label	label used in the layers inspector
parent	group layer
index	of the newly added layer in its parent group
...	additional state initialization arguments, see l_info_states

Value

layer object handle, layer id

Details

For more information run: l_help("learn_R_layer")

See also

l_layer, l_info_states

Examples

p <- l_plot()
l <- l_layer_line(p, x=c(1,2,3,4), y=c(1,3,2,4), color='red', linewidth=2)
l_scaleto_world(p)

# object
p <- l_plot()
l <- l_layer_line(p, x=nhtemp)
l_scaleto_layer(l)