textbox: Create a box with text

Description Usage Arguments Value Examples

View source: R/textbox.R

Description

Create a grob with text inside. To extract the units describing grob boundary location can be accessed with grobX and grobY. The units describing width and height can be accessed with grobWidth and grobHeight.

Usage

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textbox(
  text,
  x = unit(0.5, "npc"),
  y = unit(0.5, "npc"),
  just = c("center", "left", "right"),
  txt_gp = getOption("txt_gp", default = gpar(color = "black", cex = 1)),
  box_fn = roundrectGrob,
  box_gp = getOption("box_gp", default = gpar(fill = "white")),
  name = "textbox"
)

grid.textbox(...)

Arguments

text

A character text to be passed to textGrob.

x

A number or unit object specifying x-location.

y

A number or unit object specifying y-location.

just

The justification of the text, '"left"', '"right' and '"center"'. See textGrob for more details.

txt_gp

An object of class gpar style to be applied to the text. This will also be read from global options of "txt_gp". For example, if one wants to set a font size for all the text inside box, options(txt_gp = gpar(cex = 0.8)) will do the trick.

box_fn

Function to create box for the text. Parameters of 'x=0.5', 'y=0.5' and 'box_gp' will be passed to this function and return a grob object. This will also be read from global options of "box_gp".

box_gp

An object of class gpar style to be applied to the box.

name

A character identifier.

...

Parameters passed to textbox

Value

A text box grob. grid.textbox() returns the value invisibly.

Examples

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fg <- textbox(text = "This is a test")
grid::grid.draw(fg)
grid.textbox(text = "This is a test")
grid.textbox(text = "This is a test")

consort documentation built on Dec. 21, 2021, 1:06 a.m.