mf_get_ratio {mapsf}

Get map width and height values

Description

This function is to be used to get width and height values for maps created in reports (*.Rmd, *.qmd).
It uses the width / height ratio of a spatial object bounding box to find a matching ratio for the map.
If width is specified, then height is deduced from the width / height ratio of x, figure margins and title size.
If height is specified, then width is deduced from the width / height ratio of x, figure margins and title size.

Usage

mf_get_ratio(
  x,
  width,
  height,
  res = 96,
  expandBB = rep(0, 4),
  theme = mf_theme()
)

Arguments

x

object of class sf, sfc or SpatRaster

width

width of the figure (inches), use only one of width or height

height

height of the figure (inches), use only one of width or height

res

resolution

expandBB

fractional values to expand the bounding box with, in each direction (bottom, left, top, right)

theme

theme used for the map

Value

Width and height are returned in inches.

Examples

mtq <- mf_get_mtq()
mf_get_ratio(x = mtq, width = 5)