@thi.ng/geom-splines/cubic-quadratic.d.ts

nD cubic & quadratic curve analysis, conversion, interpolation, splitting

import type { FnU3 } from "@thi.ng/api";
import type { ReadonlyVec, Vec } from "@thi.ng/vectors";
/**
 * Converts the quadratic curve defined by given control points into a cubic
 * bezier. Returns array of 4 new control points.
 *
 * @param a
 * @param b
 * @param c
 */
export declare const cubicFromQuadratic: FnU3<ReadonlyVec, Vec[]>;
/**
 * Splits given cubic curve (defined by given control points) into 2 quadratic
 * curve segments approximating the original curve. The `gamma` param (in
 * `[0,1]` interval) can be used to control the split point (default: 0.5).
 * Returns array of new curves (each a 3-tuple of control points).
 *
 * @remarks
 * Reference: https://ttnghia.github.io/pdf/QuadraticApproximation.pdf
 *
 * @param a
 * @param b
 * @param c
 * @param d
 * @param gamma
 */
export declare const quadraticFromCubic: (a: ReadonlyVec, b: ReadonlyVec, c: ReadonlyVec, d: ReadonlyVec, gamma?: number) => Vec<number>[][];
//# sourceMappingURL=cubic-quadratic.d.ts.map