Lib.rs

A CLI utility to create string art.

Create your string art here

This repo contains two crates:

• strandify crate contains the string art library.
• strandify-cli crate provides the command line interface.

And one npm package:

• strandify-wasm provides the wasm bindings and allows strandify to be used in the browser.

📦 Installation

Command line

To use the strandify binary to generate string art, install the strandify-cli crate:

cargo install strandify-cli

📋 Usage

Once installed, you can use the strandify binary.

Something like:

strandify input_img.png output_img.png

If in doubt see the help:

$ strandify -h
CLI utility to generate string art

Usage: strandify [OPTIONS] <INPUT> [OUTPUT]

Arguments:
  <INPUT>   Input image or blueprint json file
  [OUTPUT]  Output file, either image format, svg or json

Options:
  -i, --iterations <ITERATIONS>
          Number of iterations [default: 4000]
  -t
          Transparent background
  -c, --yarn-color <YARN_COLOR>
          Yarn color [default: "0 0 0"]
      --project-to-yarn-color
          Project image to yarn color
  -S, --peg-shape <SHAPE>
          Peg distribution shape [default: circle] [possible values: circle, square, border]
  -n, --peg-number <PEG_NUMBER>
          Number of pegs. Depending on the shape, can be slightly off [default: 288]
  -m, --peg-margin <PEG_MARGIN>
          Margin between pegs and image edge [0, 1] [default: 0.05]
  -j, --peg-jitter <PEG_JITTER>
          Add jitter to the peg position
  -s, --peg-skip-within <PEG_SKIP_WITHIN>
          Don't connect pegs within pixel distance
  -O, --yarn-opacity <YARN_OPACITY>
          Yarn opacity to use to render the image [0, 1] [default: 0.2]
  -W, --yarn-width <YARN_WIDTH>
          Yarn width to use to render the image [default: 1]
  -o, --line-opacity <LINE_OPACITY>
          Line opacity to use when computing the path, controls how much to lighten the pixels at each line pass, low values encourage more line overlap [0, 1] [default: 0.1]
  -w, --line-width <LINE_WIDTH>
          Line width to use when computing the path [default: 2]
  -b, --beam-width <BEAM_WIDTH>
          Beam search width, a value of 1 results in a purely greedy algorithm [default: 1]
  -e, --early-stop-threshold <EARLY_STOP_THRESHOLD>
          If provided, early stop pathing when consecutive path losses are greater than threshold
  -E, --early-stop-count <EARLY_STOP_COUNT>
          Number of consecutive iterations with path losses above threshold to allow [default: 100]
      --output-scale <OUTPUT_SCALE>
          Output scale [default: 1]
      --save-pegs <PEG_SAVE_FILE>
          Write pegs to file
      --load-pegs <PEG_LOAD_FILE>
          Read pegs from file
  -v, --verbose...
          Increase logging verbosity
  -q, --quiet...
          Decrease logging verbosity
  -h, --help
          Print help

Library

To use the library as a dependency in your project, add the strandify crate:

cargo add strandify

See the docs for usage.

Wasm

To use the wasm bindings in your project, add the strandify-wasm npm package:

npm add strandify-wasm

I would recommend taking a look at the demo page's source code to see how to use it.

👓 Examples

See the examples folder.