Show or Hide Grid

Description

A set of convenience functions to enable or disable the use of major or minor (or both) gridlines.

Details

These flags operate at the 'rendering' level, and, supercede the presence of theme elements, therefore,

theme_hidegrid(...) or its aliases will PREVENT rendering of grid elements, irrespective of whether those grid elements are valid (renderable). From the counter perspective,

theme_showgrid(...) or its aliases will ALLOW rendering of grid elements, subject to those grid elements being valid (renderable, ie say element_line as opposed to element_blank).

theme_hidegrid or theme_nogrid (alias) is a function which disables both MAJOR and MINOR gridlines.

theme_showgrid_major is a function which enables MAJOR gridlines.

theme_hidegrid_major or theme_nogrid_major (alias) is a function which disables MAJOR gridlines.

theme_showgrid_major is a function which enables MINOR gridlines.

theme_hidegrid_minor or theme_nogrid_minor (alias) is a function which disables MINOR gridlines.

theme_showgrid is a function which enables both MAJOR and MINOR gridlines.

Usage

theme_showgrid()


theme_hidegrid()


theme_nogrid()


theme_tern_nogrid()


theme_showgrid_major()


theme_hidegrid_major()


theme_nogrid_major()


theme_tern_nogrid_major()


theme_showgrid_minor()


theme_hidegrid_minor()

Examples

  #Load data
  data(Feldspar)
  plot <- ggtern(data=Feldspar,aes(Ab,An,Or)) + 
          geom_point()   + #Layer 
          theme_bw()       #For clarity
  plot





  plot = plot + theme_hidegrid(); plot





  plot + theme_showgrid()