cardargus (version 0.2.0)

svg_to_png_chrome: Convert SVG to PNG using headless Chrome

Description

Renders an SVG to PNG using headless Chrome via the chromote package. This method provides superior font rendering compared to librsvg/ImageMagick, as Chrome properly handles @font-face rules, web fonts, and CSS features.

Usage

svg_to_png_chrome(
  svg_input,
  output_path = NULL,
  dpi = 300,
  background = "transparent",
  timeout = 30
)

Value

Path to the generated PNG file.

Arguments

svg_input

SVG string or path to an SVG file.

output_path

Output path for the PNG file. If NULL, a temp file is used.

dpi

Resolution in dots per inch (default 300). Chrome uses 96 DPI as base, so dpi = 300 results in approximately 3.125x scaling.

background

Background color for the HTML page (default "transparent"). Use "white", "#FFFFFF", etc. for a solid background.

timeout

Maximum time in seconds to wait for page load (default 30).

Examples

svg <- svg_card("FAR", list(), list())
file_name <- tempfile(fileext = ".png")
# High-quality PNG with Chrome rendering
if (FALSE)  # Requires an external Chrome/Chromium installation.
if (chrome_available()) {
  png_path <- svg_to_png_chrome(svg, file_name, dpi = 300)
}