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/var/www/uibuilder.cmshelp.dk/httpdocs/node_modules/konva/lib/BezierFunctions.js

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.t2length = exports.getQuadraticArcLength = exports.getCubicArcLength = exports.binomialCoefficients = exports.cValues = exports.tValues = void 0;
exports.tValues = [
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    [],
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exports.cValues = [
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    [],
    [1.0, 1.0],
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    ],
];
exports.binomialCoefficients = [[1], [1, 1], [1, 2, 1], [1, 3, 3, 1]];
const getCubicArcLength = (xs, ys, t) => {
    let sum;
    let correctedT;
    const n = 20;
    const z = t / 2;
    sum = 0;
    for (let i = 0; i < n; i++) {
        correctedT = z * exports.tValues[n][i] + z;
        sum += exports.cValues[n][i] * BFunc(xs, ys, correctedT);
    }
    return z * sum;
};
exports.getCubicArcLength = getCubicArcLength;
const getQuadraticArcLength = (xs, ys, t) => {
    if (t === undefined) {
        t = 1;
    }
    const ax = xs[0] - 2 * xs[1] + xs[2];
    const ay = ys[0] - 2 * ys[1] + ys[2];
    const bx = 2 * xs[1] - 2 * xs[0];
    const by = 2 * ys[1] - 2 * ys[0];
    const A = 4 * (ax * ax + ay * ay);
    const B = 4 * (ax * bx + ay * by);
    const C = bx * bx + by * by;
    if (A === 0) {
        return (t * Math.sqrt(Math.pow(xs[2] - xs[0], 2) + Math.pow(ys[2] - ys[0], 2)));
    }
    const b = B / (2 * A);
    const c = C / A;
    const u = t + b;
    const k = c - b * b;
    const uuk = u * u + k > 0 ? Math.sqrt(u * u + k) : 0;
    const bbk = b * b + k > 0 ? Math.sqrt(b * b + k) : 0;
    const term = b + Math.sqrt(b * b + k) !== 0
        ? k * Math.log(Math.abs((u + uuk) / (b + bbk)))
        : 0;
    return (Math.sqrt(A) / 2) * (u * uuk - b * bbk + term);
};
exports.getQuadraticArcLength = getQuadraticArcLength;
function BFunc(xs, ys, t) {
    const xbase = getDerivative(1, t, xs);
    const ybase = getDerivative(1, t, ys);
    const combined = xbase * xbase + ybase * ybase;
    return Math.sqrt(combined);
}
const getDerivative = (derivative, t, vs) => {
    const n = vs.length - 1;
    let _vs;
    let value;
    if (n === 0) {
        return 0;
    }
    if (derivative === 0) {
        value = 0;
        for (let k = 0; k <= n; k++) {
            value +=
                exports.binomialCoefficients[n][k] *
                    Math.pow(1 - t, n - k) *
                    Math.pow(t, k) *
                    vs[k];
        }
        return value;
    }
    else {
        _vs = new Array(n);
        for (let k = 0; k < n; k++) {
            _vs[k] = n * (vs[k + 1] - vs[k]);
        }
        return getDerivative(derivative - 1, t, _vs);
    }
};
const t2length = (length, totalLength, func) => {
    let error = 1;
    let t = length / totalLength;
    let step = (length - func(t)) / totalLength;
    let numIterations = 0;
    while (error > 0.001) {
        const increasedTLength = func(t + step);
        const increasedTError = Math.abs(length - increasedTLength) / totalLength;
        if (increasedTError < error) {
            error = increasedTError;
            t += step;
        }
        else {
            const decreasedTLength = func(t - step);
            const decreasedTError = Math.abs(length - decreasedTLength) / totalLength;
            if (decreasedTError < error) {
                error = decreasedTError;
                t -= step;
            }
            else {
                step /= 2;
            }
        }
        numIterations++;
        if (numIterations > 500) {
            break;
        }
    }
    return t;
};
exports.t2length = t2length;

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Name	Size	Perms	Modified	Actions
filters DIR	-	drwxr-xr-x	2025-03-28 11:04:37	Edit Download recursive recursive
shapes DIR	-	drwxr-xr-x	2025-03-28 11:04:37	Edit Download recursive recursive
Animation.d.ts	773 B	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
Animation.js	4.03 KB	lrw-r--r--	2025-03-28 11:04:35	Edit Download recursive recursive
BezierFunctions.d.ts	434 B	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
BezierFunctions.js	33.78 KB	lrw-r--r--	2025-03-28 11:04:36	Edit Download recursive recursive
Canvas.d.ts	907 B	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
Canvas.js	3.83 KB	lrw-r--r--	2025-03-28 11:04:36	Edit Download recursive recursive
Container.d.ts	2.17 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
Container.js	10.41 KB	lrw-r--r--	2025-03-28 11:04:36	Edit Download recursive recursive
Context.d.ts	4.76 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
Context.js	16.56 KB	lrw-r--r--	2025-03-28 11:04:36	Edit Download recursive recursive
Core.d.ts	112 B	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
Core.js	364 B	lrw-r--r--	2025-03-28 11:04:36	Edit Download recursive recursive
DragAndDrop.d.ts	535 B	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
DragAndDrop.js	4.06 KB	lrw-r--r--	2025-03-28 11:04:36	Edit Download recursive recursive
Factory.d.ts	1.89 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
Factory.js	5.07 KB	lrw-r--r--	2025-03-28 11:04:36	Edit Download recursive recursive
FastLayer.d.ts	114 B	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
FastLayer.js	575 B	lrw-r--r--	2025-03-28 11:04:36	Edit Download recursive recursive
Global.d.ts	1.07 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
Global.js	2.10 KB	lrw-r--r--	2025-03-28 11:04:36	Edit Download recursive recursive
Group.d.ts	289 B	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
Group.js	570 B	lrw-r--r--	2025-03-28 11:04:36	Edit Download recursive recursive
index-node.d.ts	67 B	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
index-node.js	705 B	lrw-r--r--	2025-03-28 11:04:36	Edit Download recursive recursive
index-types.d.ts	8.13 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
index.d.ts	67 B	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
index.js	172 B	lrw-r--r--	2025-03-28 11:04:36	Edit Download recursive recursive
Layer.d.ts	2.00 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
Layer.js	10.09 KB	lrw-r--r--	2025-03-28 11:04:36	Edit Download recursive recursive
Node.d.ts	10.99 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
Node.js	49.38 KB	lrw-r--r--	2025-03-28 11:04:36	Edit Download recursive recursive
PointerEvents.d.ts	688 B	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
PointerEvents.js	1.36 KB	lrw-r--r--	2025-03-28 11:04:36	Edit Download recursive recursive
Shape.d.ts	7.66 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
Shape.js	22.76 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
Stage.d.ts	2.82 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
Stage.js	24.84 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
Tween.d.ts	2.57 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
Tween.js	15.16 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
types.d.ts	1.30 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
types.js	1.06 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
Util.d.ts	3.87 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
Util.js	24.47 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
Validators.d.ts	1.01 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
Validators.js	6.35 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
_CoreInternals.d.ts	6.94 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
_CoreInternals.js	1.20 KB	lrw-r--r--	2025-03-28 11:04:35	Edit Download recursive recursive
_FullInternals.d.ts	8.88 KB	lrw-r--r--	2025-03-28 11:04:37	Edit Download recursive recursive
_FullInternals.js	2.99 KB	lrw-r--r--	2025-03-28 11:04:35	Edit Download recursive recursive