@thi.ng/geom/tangent-at.d.ts

Functional, polymorphic API for 2D geometry types & SVG generation

import type { Maybe } from "@thi.ng/api";
import type { MultiFn2 } from "@thi.ng/defmulti";
import type { IShape } from "./api.js";
import type { Vec } from "@thi.ng/vectors";
/**
 * Computes tangent on shape/boundary at normalized parametric position `t`.
 *
 * @remarks
 * Currently implemented for:
 *
 * - {@link Circle}
 * - {@link Cubic}
 * - {@link Line}
 * - {@link Polygon}
 * - {@link Polyline}
 * - {@link Quad}
 * - {@link Quadratic}
 * - {@link Rect}
 * - {@link Triangle}
 *
 * @param shape
 * @param t
 */
export declare const tangentAt: MultiFn2<IShape, number, Maybe<Vec>>;
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