Interactively design a grid
grid_design(data = NULL, img = NULL, label = "code", auto_img = TRUE)A data frame containing a grid to start from or NULL if starting from scratch.
An optional URL pointing to a reference image containing a geographic map of the entities in the grid.
An optional column name to use as the label for plotting the original geography, if attached to data.
If the original geography is attached to data, should a plot of that be created and uploaded to the viewer?
# edit aus_grid1
grid_design(data = aus_grid1, img = "http://www.john.chapman.name/Austral4.gif")
# start with a clean slate
grid_design()
# arrange the alphabet
grid_design(data.frame(code = letters))