font_family_exists: Check if font family exists.

In gdtools: Font Metrics and Font Management Utilities for R Graphics

Check if font family exists.

Description

Check if a font family exists in available fonts.

Usage

font_family_exists(font_family = "sans", system_only = FALSE)

Arguments

font_family	font family name (case sensitive)
system_only	If TRUE, only look in system-installed fonts (as returned by systemfonts::system_fonts()). This is useful to verify that a font will be found by fontconfig, which is the font resolution mechanism used by Cairo devices at rendering time. When FALSE (the default), both system and registered fonts are considered.

Value

A logical value

Examples

font_family_exists("sans")
font_family_exists("Arial")
font_family_exists("Courier")
font_family_exists("Arial", system_only = TRUE)

gdtools documentation built on May 26, 2026, 1:06 a.m.