Files
vectorcraft/crates/pathops/src/lib.rs
T
bflatasticandClaude Opus 5.5 2023a47188 Fix #569: Shape Builder merges leave no stray edges in their outlines
Merging regions united the faces' outlines with a boolean union. Each
face had been refit on its own, so two faces' shared edge could come out
a hair apart: the union then kept the edge between them, or a spur of
it, and a stroked merged shape (unfilled art) showed a stray line inside.
Subtracting the merged shape from the others left slivers along it too.

pathops::FaceMerger merges faces from the planar arrangement itself,
made once per merge: their contours share their edges exactly, so the
edges between merged faces vanish. The Shape Builder builds the merged
shape that way, and what is left of each shape from its faces not merged
(rather than subtracting the merged shape from it). Selections with open
paths keep the old union.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-09 03:04:48 +07:00

35 lines
1.4 KiB
Rust

//! VectorCraft path operations: booleans (Pathfinder), shape builder regions, offset, outline stroke,
//! simplify and the other Object → Path commands.
//!
//! Booleans are curve-preserving: `linesweeper`'s robust sweep-line works directly on cubic
//! Béziers, and the pieces it splits curves into are refitted afterwards so results carry few
//! anchors. See the crate README for the API overview.
#![forbid(unsafe_code)]
mod boolean;
mod edit;
mod fit;
mod offset;
mod pathfinder;
mod planar;
pub use boolean::{BoolOp, DEFAULT_PRECISION, area, boolean, boolean_n, normalize, try_boolean, try_normalize, unite_all};
pub use edit::{
AverageAxis, SimplifyOptions, add_anchor_points, average, join, remove_anchor, remove_redundant_points, simplify, simplify_with, smooth,
split_into_grid,
};
pub use offset::{Cap, Join, offset_path, outline_stroke, stroke_region};
pub use pathfinder::{FaceMerger, PathfinderOp, Region, Shape, merge_regions, pathfinder, region_at, regions};
pub use planar::{BuilderArrangement, SHAPE_BUILDER_MAX_SEGMENTS, cut_out, encloses_area, interior_point, live_paint, shape_builder};
/// Errors from fallible operations.
#[derive(Clone, Copy, Debug, PartialEq, Eq, thiserror::Error)]
pub enum PathOpsError {
#[error("input contains NaN or infinite coordinates")]
NonFinite,
#[error("input path could not be closed")]
OpenPath,
#[error("the shapes are too degenerate to combine")]
Degenerate,
}