/** Compact projected vector paths. Curves are flattened below a display pixel,
 * then simplified after projection; strokes become filled outlines before warping. */
export type Point = {
    x: number;
    y: number;
};
export type PathCommand = {
    op: string;
    points: number[];
};
export type Contour = {
    points: Point[];
    closed: boolean;
};
export type ProjectPoint = (point: Point) => Point;
export declare function simplify(points: Point[], tolerance?: number): Point[];
export declare function flatten(commands: PathCommand[], tolerance?: number): Contour[];
/** Round joins/caps, matching all line artwork in the character renderer. */
export declare function strokeOutline(contour: Contour, width: number): Contour[];
export declare function pathData(contours: Contour[], project?: ProjectPoint, tolerance?: number): string;
/** Union a triangle/polygon tessellation by cancelling shared edges, keeping only
 * the boundary loops. The output has no interior mesh edges or per-triangle layers. */
export declare function boundaryContours(polygons: Point[][]): Contour[];
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