Package 'rravif'

Clear the terminal screen

Description

Sends ANSI escape sequences to clear the visible screen and, when supported, the scrollback buffer of the current terminal. This is primarily intended for use in interactive sessions to reset the display before printing images or other rich output.

Note that support for clearing the scrollback buffer depends on the terminal emulator. In some environments, only the visible screen will be cleared.

This function has no effect in non-interactive sessions.

Usage

clear()

Value

Invisibly returns NULL.

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Encode an AVIF image

Description

Encodes an AVIF image from a nativeRaster object.

Usage

encode(nr, quality = 80, speed = 10)

Arguments

nr	A nativeRaster object.
quality	The quality of the image.
speed	The processing speed.

Value

A raw vector containing the encoded image data.

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Print a native raster image to the terminal

Description

Displays a nativeRaster object directly in the terminal using terminal graphics protocols (e.g., Sixel, Kitty, or iTerm2), depending on what is supported by the current environment.

Internally, the raster is converted to an RGBA image and rendered via a Rust backend.

In non-interactive sessions, the input is returned unchanged and no output is produced.

Usage

print_nr(x, clear_first = TRUE)

Arguments

x	A nativeRaster object.
clear_first	Logical. If TRUE, the terminal is cleared using clear() before printing the image. Defaults to TRUE.

Value

Invisibly returns x.

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Write an AVIF image to a file

Description

Write an AVIF image to a file

Usage

write_avif(nr, path = NULL, quality = 80, speed = 10)

Arguments

nr	A nativeRaster object.
path	The path to write the image.
quality	The quality of the image.
speed	The processing speed.

Value

If path is NULL, returns a raw vector containing the encoded image data. Otherwise, path is invisibly returned.

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