@thi.ng/geom-clip-line/clip-poly.d.ts

2D line clipping (Liang-Barsky)

import type { ReadonlyVec, Vec } from "@thi.ng/vectors";
/**
 * Computes all intersection points of the **infinite** line defined by `a`, `b`
 * with the given polygon. Returns an array of segments where the line is inside
 * the polygon.
 *
 * @remarks
 * "Infinite" here means the line extends indefinitely on either side and
 * intersections are found also outside the segment a..b. If only intra-segment
 * intersections are desired, use {@link clipLineSegmentPoly} instead.
 *
 * @param a
 * @param b
 * @param poly
 */
export declare const clipLinePoly: (a: ReadonlyVec, b: ReadonlyVec, poly: ReadonlyVec[]) => Vec<number>[][] | undefined;
/**
 * Similar to {@link clipLinePoly}, but only considers intersections within the
 * given line segment.
 *
 * @param a
 * @param b
 * @param poly
 */
export declare const clipLineSegmentPoly: (a: ReadonlyVec, b: ReadonlyVec, poly: ReadonlyVec[]) => Vec<number>[][] | undefined;
/**
 * Similar to {@link clipLineSegmentPoly}, but for polylines. Returns array of
 * new vertex chunks where the given polyline is inside the given bounding poly.
 *
 * @param pts
 * @param poly
 */
export declare const clipPolylinePoly: (pts: ReadonlyVec[], poly: ReadonlyVec[]) => ReadonlyVec[][];
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