alecmce-primitivesjs/dist/fibonacci.js

A small library for visualizing the prime factor decomposition of numbers.

"use strict";
var __assign = (this && this.__assign) || Object.assign || function(t) {
    for (var s, i = 1, n = arguments.length; i < n; i++) {
        s = arguments[i];
        for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
            t[p] = s[p];
    }
    return t;
};
Object.defineProperty(exports, "__esModule", { value: true });
var MULTIPLIER = 1.25;
var PHI = (Math.sqrt(5) + 1) / 2;
var PHI_2PI = PHI * 2 * Math.PI;
var Fibonacci = (function () {
    function Fibonacci(count, drawCircle, color, padding, child) {
        this.count = count;
        this.drawCircle = drawCircle;
        this.color = color;
        this.padding = padding;
        this.child = child;
        this.offset = child.radius + padding / 2;
        this.radius = Math.sqrt(count) * MULTIPLIER * this.offset + child.radius + padding;
    }
    Fibonacci.prototype.draw = function (config) {
        var container = config.container, x = config.x, y = config.y;
        var group = this.drawCircle(__assign({}, config, { radius: this.radius, color: this.color, stroke: true }));
        for (var i = 1; i <= this.count; ++i) {
            var r = Math.sqrt(i) * MULTIPLIER * this.offset;
            var theta = i * PHI_2PI;
            this.child.draw({
                container: group,
                x: Math.cos(theta) * r,
                y: -Math.sin(theta) * r,
            });
        }
        return group;
    };
    return Fibonacci;
}());
exports.Fibonacci = Fibonacci;