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grid.show.layout {grid}

Draw a Diagram of a Grid Layout
Package: 
grid
Version: 
R 3.0.2

Description

This function uses Grid graphics to draw a diagram of a Grid layout.

Usage

grid.show.layout(l, newpage=TRUE, bg = "light grey",
             cell.border = "blue", cell.fill = "light blue",
             cell.label = TRUE, label.col = "blue",
             unit.col = "red", vp = NULL)

Arguments

l
A Grid layout object.
newpage
A logical value indicating whether to move on to a new page before drawing the diagram.
bg
The colour used for the background.
cell.border
The colour used to draw the borders of the cells in the layout.
cell.fill
The colour used to fill the cells in the layout.
cell.label
A logical indicating whether the layout cells should be labelled.
label.col
The colour used for layout cell labels.
unit.col
The colour used for labelling the widths/heights of columns/rows.
vp
A Grid viewport object (or NULL).

Details

A viewport is created within vp to provide a margin for annotation, and the layout 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 layout regions are filled with light blue and framed with a blue border. The diagram is annotated with the widths and heights (including units) of the columns and rows of the layout using red text. (All colours are defaults and may be customised via function arguments.)

Values

None.

See Also

Grid, viewport, grid.layout

Examples

## Diagram of a simple layout
grid.show.layout(grid.layout(4,2,
                     heights=unit(rep(1, 4),
                                  c("lines", "lines", "lines", "null")),
                     widths=unit(c(1, 1), "inches")))

Author(s)

Paul Murrell

Documentation reproduced from R 3.0.2. License: GPL-2.