(使用 omage 制作)

omage 是一个用于图像处理的 Rust 库。它提供处理图像、绘制基本形状和配置图像属性的功能。

功能

• 带有背景颜色的图像配置。
• 在图像上绘制圆形和矩形。
• 在图像上绘制字体
• 将结果图像保存到文件。

入门指南

要在您的 Rust 项目中使用 omage，请将以下内容添加到您的 Cargo.toml 文件中

[dependencies]
omage = "0.3.11"

然后，将其包含在您的 Rust 代码中

use omage::colors::*;
use omage::{Components, Config, Image};

const HEIGHT: u32 = 1080;
const WIDTH: u32 = 1920;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let config = Config::new(WIDTH, HEIGHT, WHITE, Some(BLACK), "output.png", None);

    let mut image = Image::new();

    let circle1 = Components::Circle(config.width / 2, config.height / 2, 300, RED);
    let circle2 = Components::Circle(config.width / 2, config.height / 2, 305, BLACK);

    image
        .config(config)
        .init()?
        .add_components(vec![&circle1, &circle2])
        .draw()?;
    Ok(())
}

输出

示例

绘制圆形

use omage::colors::*;
use omage::{Components, Config, Image};

const HEIGHT: u32 = 1080;
const WIDTH: u32 = 1920;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let config = Config::new(WIDTH, HEIGHT, WHITE, Some(BLACK), "output.png", None);

    let mut image = Image::new();

    let circle = Components::Circle(config.width / 2, config.height / 2, 300, RED);

    image.config(config).init()?.add_component(&circle).draw()?;
    Ok(())
}

输出

混合颜色

use omage::colors::*;
use omage::{Components, Config, Image, Rgba};

const HEIGHT: u32 = 1080;
const WIDTH: u32 = 1920;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let config = Config::new(WIDTH, HEIGHT, WHITE, Some(BLACK), "output.png", None);

    let mut image = Image::new();

    let circle1 = Components::Circle(config.width / 2, config.height / 2, 350, RED);
    let circle2 = Components::Circle(
        config.width / 2,
        config.height / 2,
        300,
        Rgba([255, 0, 255, 120]),
    );
    let rectangle = Components::Rectangle(
        100,
        100,
        config.width / 2 - 50,
        config.height / 2 - 50,
        Rgba([120, 0, 255, 19]),
    );

    image
        .config(config)
        .init()?
        .add_components(vec![&circle1, &circle2, &rectangle])
        .draw()?;
    Ok(())
}

输出

文本

use omage::colors::*;
use omage::{Components, Config, Image, Rgba};

const HEIGHT: u32 = 100;
const WIDTH: u32 = 300;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let config = Config::new(
        WIDTH,
        HEIGHT,
        Rgba([255, 255, 255, 0]),
        Some(WHITE),
        "output.png",
        Some("./fonts/Roboto-Medium.ttf"),
    );

    let mut image = Image::new();

    let circle1 = Components::Circle(50, 55, 30, Rgba([255, 0, 0, 200]));
    let circle2 = Components::Circle(75, 55, 30, Rgba([0, 255, 0, 200]));
    let circle3 = Components::Circle(65, 35, 30, Rgba([0, 0, 255, 200]));

    let text = "OMAGE";
    let text = Components::Text(
        config.width / 2 - 40,
        config.height / 2 - 25,
        50,
        text,
        Rgba([0, 255, 0, 200]),
    );

    image
        .config(config)
        .init()?
        .add_components(vec![&text, &circle1, &circle2, &circle3])
        .draw()?;
    Ok(())
}

输出

抗锯齿

use omage::colors::*;
use omage::{Components, Config, Image};

const HEIGHT: u32 = 60;
const WIDTH: u32 = 90;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let config = Config::new(WIDTH, HEIGHT, WHITE, None, "output.png", None);

    let mut image = Image::new();

    let circle = Components::Circle(config.width / 2, config.height / 2, 10, RED);

    image.config(config).init()?.add_component(&circle).draw()?;
    Ok(())
}

输出

线条

use omage::colors::*;
use omage::{Components, Config, Image, Rgba};

const HEIGHT: u32 = 600;
const WIDTH: u32 = 800;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let config = Config::new(
        WIDTH,
        HEIGHT,
        BLACK,
        Some(GREEN),
        "output.png",
        Some("./fonts/Roboto-Medium.ttf"),
    );

    let mut image = Image::new();

    let line1 = Components::Line(0, 0, WIDTH, HEIGHT, GREEN);
    let line2 = Components::Line(WIDTH, 0, 0, HEIGHT, GREEN);
    let circle = Components::Circle(WIDTH / 2, HEIGHT / 2, 100, Rgba([0, 255, 0, 150]));
    let text = Components::Text(
        WIDTH / 2 - 210,
        HEIGHT / 2 - 250,
        40,
        "Xiaolin Wu's Line Algorithm",
        BLACK,
        Some((GREEN, 3)),
    );

    image
        .config(config)
        .init()?
        .add_components(vec![&line1, &line2, &circle, &text])
        .draw()?;
    Ok(())
}

输出

许可证

本项目采用 MIT 许可证 - 有关详细信息，请参阅LICENSE 文件。