draw

Small Rust drawing library. 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.

```rust use draw::{self, Sprite, SpriteId, Rectangle, Pixel};

let mut parent = Sprite::new(100, 100); let mut child = Rectangle::new(50, 50, 25, 25, Pixel::red());

parent.add_child(child);

draw::save(&parent, "tests/img/example.png"); ```

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

Todo list

• [ ] Split Drawable into multiple traits? (e.g. "Rotateable")
• [ ] Anti-aliasing, float positioning?
• [ ] Fix child transformations updating partition child bounds
• [ ] Track corners like verticies instead of using bounding boxes
• [ ] Add bitmap features (shear, brightness, multiply, dissolve)
• [ ] Implement rotate for rectangles / sprites
• [ ] Try 3 shear rotation for bitmaps
• [ ] Visibility
• [ ] Scaling
• [ ] Scaled saves
• [ ] Images
• [ ] OpenGL rendering