| grid.show.viewport {grid} | R Documentation |
Draw a Diagram of a Grid Viewport
Description
This function uses Grid graphics to draw a diagram of a Grid viewport.
Usage
grid.show.viewport(v, parent.layout = NULL, newpage = TRUE, vp = NULL)
Arguments
v |
A Grid viewport object. |
parent.layout |
A grid layout object. If this is not NULL and
the viewport given in |
newpage |
A logical value to indicate whether to move to a new page before drawing the diagram. |
vp |
A Grid viewport object (or NULL). |
Details
A viewport is created within vp to provide a margin for
annotation, and the diagram is drawn within that new viewport.
The margin is filled with light grey, the new viewport is filled
with white and framed with a black border, and the viewport region
is filled with light blue and framed with a blue border.
The diagram is annotated with the width and height (including units)
of the viewport, the (x, y) location of the viewport, and
the x- and y-scales of the viewport, using red lines and text.
Value
None.
Author(s)
Paul Murrell
See Also
Grid,
viewport
Examples
## Diagram of a sample viewport
grid.show.viewport(viewport(x=0.6, y=0.6,
w=unit(1, "inches"), h=unit(1, "inches")))
grid.show.viewport(viewport(layout.pos.row=2, layout.pos.col=2:3),
grid.layout(3, 4))