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Word cloud of the A New Hope movie script in the shape of a Stormtrooper helmet

wcloud

Generate beautiful word clouds with support for masks, custom fonts, custom coloring functions, and more.

Installation

Currently, the only way to install wcloud is by installing Rust and using Cargo.

cargo install wcloud

Usage

wcloud can be used as both a command-line application and a library.

Command-line

The binary runs under the wcloud name. The only required input is the text used to generate the word cloud, which can be provided via the --text flag or through stdin.

$ wcloud --text file.txt -o cloud.png

$ echo 'Clouds are awesome!' | wcloud --output cloud.png

For a list of all options, use wcloud --help.

Library

wcloud can also be used as a Rust crate. cargo add wcloud to add it as a dependency. The documentation is available here.

Here's a basic example:

use wcloud::{WordCloud, WordCloudSize};

fn main() {
    let text = r#"
        An arcus cloud is a low, horizontal cloud formation,
        usually appearing as an accessory cloud to a cumulonimbus.
        Roll clouds and shelf clouds are the two main types of arcus
        clouds. They most frequently form along the leading edge or
        gust fronts of thunderstorms; some of the most dramatic arcus
        formations mark the gust fronts of derecho-producing convective
        systems. Roll clouds may also arise in the absence of
        thunderstorms, forming along the shallow cold air currents of
        some sea breeze boundaries and cold fronts.
    "#;

    let word_cloud = WordCloud::default()
        .with_rng_seed(0);

    let size = WordCloudSize::FromDimensions { width: 1000, height: 500 };
    let word_cloud_image = word_cloud.generate_from_text(text, size, 1.0);

    word_cloud_image.save("cloud.png")
        .expect("Unable to save image");
}

Examples of generating word clouds with masks, custom colors, and other features can be found in the examples/ directory.

Gallery

Credit

This project is largely based on the word_cloud project by @amueller. Comparatively, wcloud is missing the following features:

  • Color masks
  • Mask contours
  • Bigrams
  • Colormaps
  • Plural normalization

License

wcloud is released under the MIT License. The default Ubuntu font is included under the Ubuntu Font License and Droid Sans Mono under Apache License 2.

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