Draw the Legends
draw-Legends-method.RdDraw the Legends
# S4 method for Legends draw(object, x = unit(0.5, "npc"), y = unit(0.5, "npc"), just = "centre", test = FALSE)
Arguments
| object | The |
|---|---|
| x | The x position of the legends, measured in current viewport. |
| y | The y position of the legends, measured in current viewport. |
| just | Justification of the legends. |
| test | Only used for testing. |
Details
In the legend grob, there should always be a viewport attached which is like a wrapper of
all the graphic elements in a legend.
If in the object, there is already a viewport attached, it will modify the x, y
and valid.just of the viewport. If there is not viewport attached, a viewport
with specified x, y and valid.just is created and attached.
You can also directly use grid.draw to draw the legend object, but you can
only control the position of the legends by first creating a parent viewport and adjusting
the position of the parent viewport.
Examples
lgd = Legend(at = 1:4, title = "foo") draw(lgd, x = unit(0, "npc"), y = unit(0, "npc"), just = c("left", "bottom"))# and a similar version of grid.draw pushViewport(viewport(x = unit(0, "npc"), y = unit(0, "npc"), just = c("left", "bottom")))grid.draw(lgd)popViewport()
