idlocator: Digitize a point, or UNDO, or STOP.

In dankelley/imagedata: Digitize data in PNG files

Description

Digitize a point, or UNDO, or STOP.

Usage

idlocator(S = NULL, U = NULL, X = NULL, Y = NULL, bell = TRUE,
  verbose = TRUE, type = "p", col = "red", lwd = par("lwd"), pch = 20,
  cex = 1/2)

Arguments

S	information on the STOP region
U	information on the UNDO region
X	information on the x scale
Y	information on the y scale
bell	TRUE to ring the bell with mouse clicks
verbose	TRUE to print more information
type	'p' for points, 'n' for none, etc as for plot
col	colour (ignored unless plotting) as for par
lwd	line width of symbols as for par
pch	symbol code as for par
cex	symbol size expansion factor as 0for par

Value

a list containing digitized values x and y along with status, which may be "DATA" for data, "AXIS" for axis information, "STOP" for a click in the STOP region, or "UNDO" for a click in the UNDO region. plus other properties

dankelley/imagedata documentation built on May 14, 2019, 4:09 p.m.