draw

WARNING: This library is in early development! Expect changes.

A tiny drawing library for Rust. Simple display list, vector and bitmap shapes. Intended to be used to produce single images, or image sequences for creating animated mp4 or gif files.

Example

// create a canvas to draw on
let mut canvas = Canvas::new(100, 100);

// create a rectangle
let mut rect = Drawing::new(Shape::Rectangle {
    width: 50,
    height: 50,
});

// move it around
rect.position.x = 25.0;
rect.position.y = 25.0;

// give it a cool style
rect.style = Style {
    fill: Some(Fill {
        color: RGB::new(0, 0, 0),
    }),
    stroke: Some(Stroke {
        width: 2,
        color: RGB::new(255, 0, 0),
    }),
};

// add it to the canvas
canvas.display_list.add(rect);

// save the canvas as an svg
render::save(
    &canvas,
    "tests/svg/basic_end_to_end.svg",
    SvgRenderer::new(),
)
.expect("Failed to save");

Todo list

• Testing
• Add a bunch more shapes
• Clean up the SVG renderer shapes
• Lines
• Draw anything other than a rectangle
• Positions
• Styles

Useful Commands

Convert PNG sequence to mp4

ffmpeg -framerate 60 -pattern_type glob -i '*.png' -c:v libx264 -pix_fmt yuv420p out. mp4

Convert PNG sequence to gif

convert -delay 1 *.png output.gif

Profiling

export RUSTFLAGS='-g'
perf record --call-graph=lbr cargo run --release
perf report