Draw gridlines for axes object — gridlinesGrob • chartplotter

Return a grob object that contains graphic object of four axes.

gridlinesGrob(
  xy.axes,
  at = list(NULL, NULL),
  lwd = 1,
  col = 2,
  lty = 1,
  vp = NULL,
  name = "gridlines",
  ...
)

grid.gridlines(...)

Arguments

xy.axes: The axes definition produced by chartdesigner:::axesGrob()$xy.axes
at: A list of length 2 containing the locations where the grid lines should be drawn. The first list component contains the values on the x axis (for vertical grid lines). The second component the values on the y axis (for horizontal grid lines).
lwd: Scalar or list of length 2 containig line width for grid lines
col: Scalar or list of length 2 containing color if the grid lines
lty: Scaler or list of length 2 containing the lty lint type parameter
vp: Viewport to draw to
name: name of the grob
...: Additional argument passed to gpar()

A gTree that contains the gridlines grobs, under child names vertical and horizontal. A NULL component does not draw grid lines.