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Add the linesweeper 0.5.0 package to vendor/ with no file changed, so that a fix to it can reach the Craft apps through this repository without waiting for a linesweeper release. The GitHub repository its manifest names is archived, and its README says development moved off GitHub. Leave out the test font (fonts live in craft-fonts), the logo artwork, the snapshot images and the package's repository tooling. SOURCE.json lists each with its hash. Add a workspace exclude, a [patch.crates-io] entry, SOURCE.json with the archive hash and per-file hashes, NOTICE and ATTRIBUTION.md rows, and the package's tests in the backend test script. craft-prepress's flatten feature now builds against the copy, so Cargo.lock drops the package's registry source and checksum.
1.2 KiB
1.2 KiB
linesweeper: a robust sweep-line algorithm
This rust crate implements a "robust" version of the Bentley-Ottmann sweep-line algorithm, and uses it to provide various two-dimensional geometric primitives like boolean operations on sets bounded by Bézier paths. It is currently in an early beta state.
Basic usage
To compute binary operations between curves, use the binary_op function, which
takes in two paths and computes some binary operation on them:
use kurbo::Shape;
use linesweeper::{binary_op, FillRule, BinaryOp};
let square = kurbo::Rect::from_center_size((0.0, 0.0), (2.0, 2.0)).to_path(1e-6);
let circle = kurbo::Circle::new((0.0, 0.0), 1.2).to_path(1e-6);
binary_op(&square, &circle, FillRule::EvenOdd, BinaryOp::Intersection);
Advanced usage
For more advanced usage (like custom n-ary operations) see Topology, or
the example in examples/bus.rs.