bottomleft: A helper function to specify the undo region.

Description Usage Value

Description

bottomleft invites the user to click the bottom-leftcorner of the plotting area, and stores the x and y values (in plot units) as xundo and yundo. These values are used by data().

Usage

1

Value

a list with x and y page coordinates


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