Contour tracing library

A 2D library to trace contours.

Features

Core features:

• Trace contours using the Theo Pavlidis' algorithm (connectivity: 4-connected)
• Trace outlines in clockwise direction
• Trace holes in counterclockwise direction
• Input format: a 2D array of bits
• Output format: a string of SVG Path commands

Manual parameters:

• User can specify to close or not the paths (with the SVG Path Z command)

Example

extern crate contour_tracing;
use contour_tracing::bits_to_paths;

let bits = vec![vec![ 1,0,0 ],
                vec![ 0,1,0 ],
                vec![ 0,0,1 ]];

println!("{}", bits_to_paths(bits, true));

Should print: M0 0H1V1H0ZM1 1H2V2H1ZM2 2H3V3H2Z

For more examples, have a look at the documentation:

License

Contour tracing library https://github.com/STPR/contour_tracing

Copyright (c) 2021, STPR - https://github.com/STPR

SPDX-License-Identifier: EUPL-1.2

Contribution

Your contribution is highly appreciated. Do not hesitate to open an issue or a pull request. Note that any contribution submitted for inclusion in the project will be licensed according to the terms given in LICENSE.txt.