Hello, I'm trying to write a function using tcltk to interactively modify a plot and gather locator() data. I've read Peter's articles in Rnews, the help pages in tcltk, http://bioinf.wehi.edu.au/~wettenhall/RTclTkExamples/, plus a post in R-help sometime ago, but haven't found a solution. The idea goes something like this:
require(tcltk) testplot <- function() { getcoords <- function(...) { locator(5) } x <- 1:1000 y <- rnorm(1000) plot(x, y) base <- tktoplevel() loc.pts <- tkbutton(base, text = "Get coordinates", command = getcoords) quit.but <- tkbutton(base, text = "Quit", command = function() tkdestroy(base)) tkpack(loc.pts, quit.but) } I'd like testplot to return the value from getcoords. The "Get coordinates" button seems to be correctly calling getcoords, and locator is doing its job, but I don't know how to store its value. Any help is very much appreciated. Regards, Sebastian -- Sebastian P. Luque ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html