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##installing bezier-js package

1. run: npm install bezier-js @types/bezier-js --save-dev
2. replace content in following file node_modules/@types/bezier-js/index.d.ts with: // Type definitions for Bezier.js // Project: https://github.com/Pomax/bezierjs // Definitions by: Dan Marshall https://github.com/danmarshall // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped

interface Point { x: number; y: number; z?: number; } interface Projection extends Point { t?: number; d?: number; } interface Inflection { x: number[]; y: number[]; z?: number[]; values: number[]; } interface Offset extends Point { c: Point; n: Point; } interface Pair { left: Bezier; right: Bezier; } interface Split extends Pair { span: Point[]; _t1?: number; _t2?: number; } interface MinMax { min: number; mid?: number; max: number; size?: number; } interface BBox { x: MinMax; y: MinMax; z?: MinMax; } interface Line { p1: Point; p2: Point; } interface Arc extends Point { e: number; r: number; s: number; } interface Shape { startcap: BezierCap; forward: Bezier; back: Bezier; endcap: BezierCap; bbox: BBox; intersections: (shape: Shape) => string[][] | number[][]; } interface ABC { A: Point; B: Point; C: Point; } interface Closest { mdist: number; mpos: number; } /**

• Bezier curve constructor. The constructor argument can be one of three things:
• 1. array/4 of {x:..., y:..., z:...}, z optional
• 2. numerical array/8 ordered x1,y1,x2,y2,x3,y3,x4,y4
• 3. numerical array/12 ordered x1,y1,z1,x2,y2,z2,x3,y3,z3,x4,y4,z4

*/ declare class Bezier { private _linear; clockwise: boolean; _3d: boolean; _t1: number; _t2: number; _lut: Point[]; dpoints: Point[][]; order: number; points: Point[]; dims: string[]; dimlen: number; constructor(points: Point[]); constructor(coords: number[]); constructor(x1: number, y1: number, x2: number, y2: number, x3: number, y3: number, x4?: number, y4?: number); constructor(p1: Point, p2: Point, p3: Point, p4?: Point); static fromSVG(svgString: string): Bezier; static getABC(n: number, S: Point, B: Point, E: Point, t: number): ABC; static quadraticFromPoints(p1: Point, p2: Point, p3: Point, t: number): Bezier; static cubicFromPoints(S: Point, B: Point, E: Point, t: number, d1: number): Bezier; static getUtils(): typeof utils; getUtils(): typeof utils; valueOf(): string; toString(): string; toSVG(): string; update(): void; computedirection(): void; length(): number; getLUT(steps?: number): Point[]; on(point: Point, error: number): number; project(point: Point): Projection; get(t: number): Point; point(idx: number): Point; compute(t: number): Point; raise(): Bezier; derivative(t: number): Point; inflections(): number[]; normal(t: number): Point; private __normal2(t); private __normal3(t); private __normal(t); hull(t: number): Point[]; split(t1: number): Split; split(t1: number, t2: number): Bezier; extrema(): Inflection; bbox(): BBox; overlaps(curve: Bezier): boolean; offset(t: number, d?: number): Offset | Bezier[]; simple(): boolean; reduce(): Bezier[]; scale(d: Function): Bezier; scale(d: number): Bezier; outline(d1: number, d2?: number, d3?: number, d4?: number): PolyBezier; outlineshapes(d1: number, d2: number, curveIntersectionThreshold?: number): Shape[]; intersects(curve: Bezier, curveIntersectionThreshold?: number): string[] | number[]; intersects(curve: Line): string[] | number[]; lineIntersects(line: Line): number[]; selfintersects(curveIntersectionThreshold?: number): string[]; curveintersects(c1: Bezier[], c2: Bezier[], curveIntersectionThreshold?: number): string[]; arcs(errorThreshold?: number): Arc[]; private _error(pc, np1, s, e); private _iterate(errorThreshold, circles); } declare class BezierCap extends Bezier { virtual: boolean; }

declare namespace utils { var Tvalues: number[]; var Cvalues: number[]; function arcfn(t: number, derivativeFn: Function): number; function between(v: number, m: number, M: number): boolean; function approximately(a: number, b: number, precision?: number): boolean; function length(derivativeFn: Function): number; function map(v: number, ds: number, de: number, ts: number, te: number): number; function lerp(r: number, v1: Point, v2: Point): Point; function pointToString(p: Point): string; function pointsToString(points: Point[]): string; function copy(obj: Object): any; function angle(o: Point, v1: Point, v2: Point): number; function round(v: number, d: number): number; function dist(p1: Point, p2: Point): number; function closest(LUT: Point[], point: Point): Closest; function abcratio(t: number, n: number): number; function projectionratio(t: number, n: number): number; function lli8(x1: number, y1: number, x2: number, y2: number, x3: number, y3: number, x4: number, y4: number): Point; function lli4(p1: Point, p2: Point, p3: Point, p4: Point): Point; function lli(v1: Offset, v2: Offset): Point; function makeline(p1: Point, p2: Point): Bezier; function findbbox(sections: Bezier[]): BBox; function shapeintersections(s1: Shape, bbox1: BBox, s2: Shape, bbox2: BBox, curveIntersectionThreshold?: number): string[][] | number[][]; function makeshape(forward: Bezier, back: Bezier, curveIntersectionThreshold?: number): Shape; function getminmax(curve: Bezier, d: string, list: number[]): MinMax; function align(points: Point[], line: Line): Point[]; function roots(points: Point[], line: Line): number[]; function droots(p: number[]): number[]; function inflections(points: Point[]): number[]; function bboxoverlap(b1: BBox, b2: BBox): boolean; function expandbox(bbox: BBox, _bbox: BBox): void; function pairiteration(c1: Bezier, c2: Bezier, curveIntersectionThreshold?: number): string[]; function getccenter(p1: Point, p2: Point, p3: Point): Arc; }

/**

• Poly Bezier
• @param {[type]} curves [description] */ declare class PolyBezier { curves: Bezier[]; private _3d; points: Point[]; constructor(curves: Bezier[]); valueOf(): string; toString(): string; addCurve(curve: Bezier): void; length(): number; curve(idx: number): Bezier; bbox(): BBox; offset(d: number): PolyBezier; }

declare module "bezier-js" { export default Bezier }