rp.deleteline: Removes a line from an rpanel image

In rpanel: Simple Interactive Controls for R using the 'tcltk' Package

Removes a line from an rpanel image

Description

This removes a previously drawn line which was given an id in rp.line.

Usage

rp.deleteline(panel, imagename, id)

Arguments

panel	the panel containing the image. This may be passed as a panelname string or the panel object itself.
imagename	the image on which the line was drawn.
id	the identifier of the line to be deleted.

Value

If the argument panel is the panelname string the same string is returned. If the panel object is used, the altered panel is assigned to both the calling level and panel's environment level.

Note

In version 1.1, the former argument image has been renamed name to be consistent with the rest of rpanel.

References

rpanel: Simple interactive controls for R functions using the tcltk package. Journal of Statistical Software, 17, issue 9.

Examples

## Not run: 
   panel <- rp.control()
   image.file <- file.path(system.file(package = "rpanel"), "images", "gulllmks.gif")
   panel <- rp.image(panel, image.file, imagename="gulls.image")
   rp.line(panel, imagename=gulls.image, 10, 10, 100, 100, color = "green", id="first")
   rp.line(panel, imagename=gulls.image, 100, 100, 100, 10, color = "blue", id="second")
   rp.deleteline(panel, imagename=gulls.image, id="first")

## End(Not run)

rpanel documentation built on Feb. 16, 2023, 10:37 p.m.