omiForSubFigure {precisePlacement}

Generate Values for par("omi") That Will Place a New Plot in a Sub-Region of an Existing One

Description

Generate Values for par("omi") That Will Place a New Plot in a Sub-Region of an Existing One

Usage

omiForSubFigure(
  bottom,
  left,
  top,
  right,
  units = "proportion",
  region = "device"
)

Arguments

bottom

Boundary value for the bottom edge.

left

Boundary value for the left edge.

top

Boundary value for the top edge.

right

Boundary value for the right edge.

units

The units in which the boundary parameters are defined. Must be one one of "proportion" or "data". Defaults to "proportion".

region

The region of the plot to use for defining the boundaries. Must be one of "device", "figure", "plot", or "data". Only necessary when using units of "proportion".

Details

The choice of accepting proportions instead of data units by default is to more easily handle empty devices, otherwise there is a risk of getting confused by the fact that par("usr") defaults to c(0, 1, 0, 1).

Author(s)

Jasper Watson

Examples

## Not run: 

plot(1:10, pch = 19, col = 'black')
oldPar = par()
par(omi = omiForSubFigure(0.6, 0.25, 0.8, 0.45, region = 'device'))
par(mar = c(0,0,0,0))
plot(1:10, pch = 19, col = 'red')
par(oldPar)
par(omi = omiForSubFigure(2, 6, 5, 10, units = 'data'))
par(mar = c(0,0,0,0))
plot(1:10, pch = 19, col = 'blue')
par(oldPar)

## Illustrates how the proportions line up:

plot(1:10, pch = 19)
par(xpd = NA)
oldPar = par()

## Show where the propotions are as a reference:
abline(v = convertUnits('proportion', seq(0, 1, by = 0.1), 'data',
       region = 'device', axis = 'x'), lty = 2, col = 'red')
abline(h = convertUnits('proportion', seq(0, 1, by = 0.1), 'data',
       region = 'device', axis = 'y'), lty = 2, col = 'red')

## Create a new sub-plot.
par(omi = omiForSubFigure(0.2, 0.2, 0.8, 0.8, region = 'device'))

plot(1:10, pch = 19, col = 'red')
highlightFigureRegion()

par(oldPar)


## End(Not run)