https://github.com/jakeroggenbuck/colorgradient-rs

Generate a gradient from selected colors
https://github.com/jakeroggenbuck/colorgradient-rs

color-scheme rust rust-lang

Last synced: 5 days ago
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Generate a gradient from selected colors

• Host: GitHub
• URL: https://github.com/jakeroggenbuck/colorgradient-rs
• Owner: JakeRoggenbuck
• License: mit
• Created: 2021-05-01T07:04:40.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2023-01-01T07:31:27.000Z (almost 2 years ago)
• Last Synced: 2023-03-03T22:23:25.620Z (over 1 year ago)
• Topics: color-scheme, rust, rust-lang
• Language: Rust
• Homepage:
• Size: 27.3 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# colorgradient-rs

![image](https://user-images.githubusercontent.com/35516367/116793337-1716c680-aa7b-11eb-9c1e-2cda170e2118.png)

- Python version [colorgradient](https://github.com/JakeRoggenbuck/colorgradient)

- Rust version [colorgradient-rs](https://github.com/JakeRoggenbuck/colorgradient-rs)

- Julia version [colorgradient-julia](https://github.com/JakeRoggenbuck/colorgradient-julia)

- C version [colorgradient-c](https://github.com/JakeRoggenbuck/colorgradient-c)

- Go version [colorgradient-go](https://github.com/JakeRoggenbuck/colorgradient-go)

- Clojure version [colorgradient-clj](https://github.com/JakeRoggenbuck/colorgradient-clj)



# Install 

```

git clone https://github.com/JakeRoggenbuck/colorgradient-rs

cargo install --path colorgradient-rs

```

# Test

```

cargo test

```

# Code

```rs

fn calculate_gradient(num: i64, original_colors: Vec) -> Vec {

    // Get the needed step value to fit the num of iterations in the original_colors length

    let step: f32 = (original_colors.len() as f32 - 1.0) / num as f32;

    let channels = get_channels(original_colors);

    let mut colors = Vec::::new();

    for i in 0..num {

        // Use step to count up with index

        let x: f32 = i as f32 * step;

        let mut color = Vec::new();

        // Get each channel as a reference, use it as the known x values

        for channel in [&channels.red, &channels.green, &channels.blue].iter() {

            // Add the y values found from the x value to the color

            color.push(find_y(x as f32, channel).abs());

        }

        // Change the vector of colors to RGB structure, and add it to all the colors

        colors.push(vec_to_rgb!(color));

    }

    return colors;

}

```