Calculate Font Size Based on Figure Dimensions — font

Scales font size proportionally to figure dimensions to maintain visual consistency across plots of different sizes. Font size scales with the square root of the area to ensure readability.

For combined plots (e.g., patchwork or cowplot layouts), use ncol and nrow to specify the panel grid. The function will compute the effective per-panel dimensions and size the font accordingly, so text remains appropriately sized after the layout engine shrinks each panel.

Usage

font_config(
  width,
  height,
  ncol = 1,
  nrow = 1,
  reference_font_size = 9,
  reference_width = 7,
  reference_height = 7,
  min_font_size = 6,
  max_font_size = 14
)

Arguments

width: Figure width in inches
height: Figure height in inches
ncol: Number of panel columns in a combined layout (default: 1). For example, a 2-column patchwork layout should use ncol = 2.
nrow: Number of panel rows in a combined layout (default: 1). For example, a 2-row cowplot layout should use nrow = 2.
reference_font_size: Base font size for reference dimensions (default: 9pt)
reference_width: Reference width in inches (default: 7)
reference_height: Reference height in inches (default: 7)
min_font_size: Minimum font size to prevent text being too small (default: 6)
max_font_size: Maximum font size to prevent text being too large (default: 14)

Value

List containing font configuration from control_fonts()

Examples

# Font config for a small 5×4 plot
font_config(5, 4)
#> $p
#> [1] 6
#> 
#> $h1
#> [1] 17.4072
#> 
#> $h2
#> [1] 15.11042
#> 
#> $label
#> [1] 3.579356
#> 
#> $rel
#> [1] 7.253
#> 

# Font config for a large 16×6 plot
font_config(16, 6)
#> $p
#> [1] 12.59738
#> 
#> $h1
#> [1] 8.29087
#> 
#> $h2
#> [1] 7.196935
#> 
#> $label
#> [1] 3.311563
#> 
#> $rel
#> [1] 7.253
#> 

# Font config for a 16×6 figure with 4 side-by-side panels
# (each panel is effectively 4×6)
font_config(16, 6, ncol = 4)
#> $p
#> [1] 6.298688
#> 
#> $h1
#> [1] 16.58174
#> 
#> $h2
#> [1] 14.39387
#> 
#> $label
#> [1] 3.555108
#> 
#> $rel
#> [1] 7.253
#> 

# Font config for a 14×5 figure with 2 side-by-side panels
font_config(14, 5, ncol = 2)
#> $p
#> [1] 7.606388
#> 
#> $h1
#> [1] 13.73098
#> 
#> $h2
#> [1] 11.91926
#> 
#> $label
#> [1] 3.471367
#> 
#> $rel
#> [1] 7.253
#>