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- import { isBigNumber } from '../../utils/is.js';
- import { factory } from '../../utils/factory.js';
- var name = 'distance';
- var dependencies = ['typed', 'addScalar', 'subtract', 'divideScalar', 'multiplyScalar', 'unaryMinus', 'sqrt', 'abs'];
- export var createDistance = /* #__PURE__ */factory(name, dependencies, _ref => {
- var {
- typed,
- addScalar,
- subtract,
- multiplyScalar,
- divideScalar,
- unaryMinus,
- sqrt,
- abs
- } = _ref;
- /**
- * Calculates:
- * The eucledian distance between two points in N-dimensional spaces.
- * Distance between point and a line in 2 and 3 dimensional spaces.
- * Pairwise distance between a set of 2D or 3D points
- * NOTE:
- * When substituting coefficients of a line(a, b and c), use ax + by + c = 0 instead of ax + by = c
- * For parametric equation of a 3D line, x0, y0, z0, a, b, c are from: (x−x0, y−y0, z−z0) = t(a, b, c)
- *
- * Syntax:
- * math.distance([x1, y1], [x2, y2])
- *- math.distance({pointOneX: 4, pointOneY: 5}, {pointTwoX: 2, pointTwoY: 7})
- * math.distance([x1, y1, z1], [x2, y2, z2])
- * math.distance({pointOneX: 4, pointOneY: 5, pointOneZ: 8}, {pointTwoX: 2, pointTwoY: 7, pointTwoZ: 9})
- * math.distance([x1, y1, ... , N1], [x2, y2, ... , N2])
- * math.distance([[A], [B], [C]...])
- * math.distance([x1, y1], [LinePtX1, LinePtY1], [LinePtX2, LinePtY2])
- * math.distance({pointX: 1, pointY: 4}, {lineOnePtX: 6, lineOnePtY: 3}, {lineTwoPtX: 2, lineTwoPtY: 8})
- * math.distance([x1, y1, z1], [LinePtX1, LinePtY1, LinePtZ1], [LinePtX2, LinePtY2, LinePtZ2])
- * math.distance({pointX: 1, pointY: 4, pointZ: 7}, {lineOnePtX: 6, lineOnePtY: 3, lineOnePtZ: 4}, {lineTwoPtX: 2, lineTwoPtY: 8, lineTwoPtZ: 5})
- * math.distance([x1, y1], [xCoeffLine, yCoeffLine, constant])
- * math.distance({pointX: 10, pointY: 10}, {xCoeffLine: 8, yCoeffLine: 1, constant: 3})
- * math.distance([x1, y1, z1], [x0, y0, z0, a-tCoeff, b-tCoeff, c-tCoeff]) point and parametric equation of 3D line
- * math.distance([x, y, z], [x0, y0, z0, a, b, c])
- * math.distance({pointX: 2, pointY: 5, pointZ: 9}, {x0: 4, y0: 6, z0: 3, a: 4, b: 2, c: 0})
- *
- * Examples:
- * math.distance([0,0], [4,4]) // Returns 5.656854249492381
- * math.distance(
- * {pointOneX: 0, pointOneY: 0},
- * {pointTwoX: 10, pointTwoY: 10}) // Returns 14.142135623730951
- * math.distance([1, 0, 1], [4, -2, 2]) // Returns 3.7416573867739413
- * math.distance(
- * {pointOneX: 4, pointOneY: 5, pointOneZ: 8},
- * {pointTwoX: 2, pointTwoY: 7, pointTwoZ: 9}) // Returns 3
- * math.distance([1, 0, 1, 0], [0, -1, 0, -1]) // Returns 2
- * math.distance([[1, 2], [1, 2], [1, 3]]) // Returns [0, 1, 1]
- * math.distance([[1,2,4], [1,2,6], [8,1,3]]) // Returns [2, 7.14142842854285, 7.681145747868608]
- * math.distance([10, 10], [8, 1, 3]) // Returns 11.535230316796387
- * math.distance([10, 10], [2, 3], [-8, 0]) // Returns 8.759953130362847
- * math.distance(
- * {pointX: 1, pointY: 4},
- * {lineOnePtX: 6, lineOnePtY: 3},
- * {lineTwoPtX: 2, lineTwoPtY: 8}) // Returns 2.720549372624744
- * math.distance([2, 3, 1], [1, 1, 2, 5, 0, 1]) // Returns 2.3204774044612857
- * math.distance(
- * {pointX: 2, pointY: 3, pointZ: 1},
- * {x0: 1, y0: 1, z0: 2, a: 5, b: 0, c: 1} // Returns 2.3204774044612857
- *
- * @param {Array | Matrix | Object} x Co-ordinates of first point
- * @param {Array | Matrix | Object} y Co-ordinates of second point
- * @return {Number | BigNumber} Returns the distance from two/three points
- */
- return typed(name, {
- 'Array, Array, Array': function ArrayArrayArray(x, y, z) {
- // Point to Line 2D (x=Point, y=LinePoint1, z=LinePoint2)
- if (x.length === 2 && y.length === 2 && z.length === 2) {
- if (!_2d(x)) {
- throw new TypeError('Array with 2 numbers or BigNumbers expected for first argument');
- }
- if (!_2d(y)) {
- throw new TypeError('Array with 2 numbers or BigNumbers expected for second argument');
- }
- if (!_2d(z)) {
- throw new TypeError('Array with 2 numbers or BigNumbers expected for third argument');
- }
- var m = divideScalar(subtract(z[1], z[0]), subtract(y[1], y[0]));
- var xCoeff = multiplyScalar(multiplyScalar(m, m), y[0]);
- var yCoeff = unaryMinus(multiplyScalar(m, y[0]));
- var constant = x[1];
- return _distancePointLine2D(x[0], x[1], xCoeff, yCoeff, constant);
- } else {
- throw new TypeError('Invalid Arguments: Try again');
- }
- },
- 'Object, Object, Object': function ObjectObjectObject(x, y, z) {
- if (Object.keys(x).length === 2 && Object.keys(y).length === 2 && Object.keys(z).length === 2) {
- if (!_2d(x)) {
- throw new TypeError('Values of pointX and pointY should be numbers or BigNumbers');
- }
- if (!_2d(y)) {
- throw new TypeError('Values of lineOnePtX and lineOnePtY should be numbers or BigNumbers');
- }
- if (!_2d(z)) {
- throw new TypeError('Values of lineTwoPtX and lineTwoPtY should be numbers or BigNumbers');
- }
- if ('pointX' in x && 'pointY' in x && 'lineOnePtX' in y && 'lineOnePtY' in y && 'lineTwoPtX' in z && 'lineTwoPtY' in z) {
- var m = divideScalar(subtract(z.lineTwoPtY, z.lineTwoPtX), subtract(y.lineOnePtY, y.lineOnePtX));
- var xCoeff = multiplyScalar(multiplyScalar(m, m), y.lineOnePtX);
- var yCoeff = unaryMinus(multiplyScalar(m, y.lineOnePtX));
- var constant = x.pointX;
- return _distancePointLine2D(x.pointX, x.pointY, xCoeff, yCoeff, constant);
- } else {
- throw new TypeError('Key names do not match');
- }
- } else {
- throw new TypeError('Invalid Arguments: Try again');
- }
- },
- 'Array, Array': function ArrayArray(x, y) {
- // Point to Line 2D (x=[pointX, pointY], y=[x-coeff, y-coeff, const])
- if (x.length === 2 && y.length === 3) {
- if (!_2d(x)) {
- throw new TypeError('Array with 2 numbers or BigNumbers expected for first argument');
- }
- if (!_3d(y)) {
- throw new TypeError('Array with 3 numbers or BigNumbers expected for second argument');
- }
- return _distancePointLine2D(x[0], x[1], y[0], y[1], y[2]);
- } else if (x.length === 3 && y.length === 6) {
- // Point to Line 3D
- if (!_3d(x)) {
- throw new TypeError('Array with 3 numbers or BigNumbers expected for first argument');
- }
- if (!_parametricLine(y)) {
- throw new TypeError('Array with 6 numbers or BigNumbers expected for second argument');
- }
- return _distancePointLine3D(x[0], x[1], x[2], y[0], y[1], y[2], y[3], y[4], y[5]);
- } else if (x.length === y.length && x.length > 0) {
- // Point to Point N-dimensions
- if (!_containsOnlyNumbers(x)) {
- throw new TypeError('All values of an array should be numbers or BigNumbers');
- }
- if (!_containsOnlyNumbers(y)) {
- throw new TypeError('All values of an array should be numbers or BigNumbers');
- }
- return _euclideanDistance(x, y);
- } else {
- throw new TypeError('Invalid Arguments: Try again');
- }
- },
- 'Object, Object': function ObjectObject(x, y) {
- if (Object.keys(x).length === 2 && Object.keys(y).length === 3) {
- if (!_2d(x)) {
- throw new TypeError('Values of pointX and pointY should be numbers or BigNumbers');
- }
- if (!_3d(y)) {
- throw new TypeError('Values of xCoeffLine, yCoeffLine and constant should be numbers or BigNumbers');
- }
- if ('pointX' in x && 'pointY' in x && 'xCoeffLine' in y && 'yCoeffLine' in y && 'constant' in y) {
- return _distancePointLine2D(x.pointX, x.pointY, y.xCoeffLine, y.yCoeffLine, y.constant);
- } else {
- throw new TypeError('Key names do not match');
- }
- } else if (Object.keys(x).length === 3 && Object.keys(y).length === 6) {
- // Point to Line 3D
- if (!_3d(x)) {
- throw new TypeError('Values of pointX, pointY and pointZ should be numbers or BigNumbers');
- }
- if (!_parametricLine(y)) {
- throw new TypeError('Values of x0, y0, z0, a, b and c should be numbers or BigNumbers');
- }
- if ('pointX' in x && 'pointY' in x && 'x0' in y && 'y0' in y && 'z0' in y && 'a' in y && 'b' in y && 'c' in y) {
- return _distancePointLine3D(x.pointX, x.pointY, x.pointZ, y.x0, y.y0, y.z0, y.a, y.b, y.c);
- } else {
- throw new TypeError('Key names do not match');
- }
- } else if (Object.keys(x).length === 2 && Object.keys(y).length === 2) {
- // Point to Point 2D
- if (!_2d(x)) {
- throw new TypeError('Values of pointOneX and pointOneY should be numbers or BigNumbers');
- }
- if (!_2d(y)) {
- throw new TypeError('Values of pointTwoX and pointTwoY should be numbers or BigNumbers');
- }
- if ('pointOneX' in x && 'pointOneY' in x && 'pointTwoX' in y && 'pointTwoY' in y) {
- return _euclideanDistance([x.pointOneX, x.pointOneY], [y.pointTwoX, y.pointTwoY]);
- } else {
- throw new TypeError('Key names do not match');
- }
- } else if (Object.keys(x).length === 3 && Object.keys(y).length === 3) {
- // Point to Point 3D
- if (!_3d(x)) {
- throw new TypeError('Values of pointOneX, pointOneY and pointOneZ should be numbers or BigNumbers');
- }
- if (!_3d(y)) {
- throw new TypeError('Values of pointTwoX, pointTwoY and pointTwoZ should be numbers or BigNumbers');
- }
- if ('pointOneX' in x && 'pointOneY' in x && 'pointOneZ' in x && 'pointTwoX' in y && 'pointTwoY' in y && 'pointTwoZ' in y) {
- return _euclideanDistance([x.pointOneX, x.pointOneY, x.pointOneZ], [y.pointTwoX, y.pointTwoY, y.pointTwoZ]);
- } else {
- throw new TypeError('Key names do not match');
- }
- } else {
- throw new TypeError('Invalid Arguments: Try again');
- }
- },
- Array: function Array(arr) {
- if (!_pairwise(arr)) {
- throw new TypeError('Incorrect array format entered for pairwise distance calculation');
- }
- return _distancePairwise(arr);
- }
- });
- function _isNumber(a) {
- // distance supports numbers and bignumbers
- return typeof a === 'number' || isBigNumber(a);
- }
- function _2d(a) {
- // checks if the number of arguments are correct in count and are valid (should be numbers)
- if (a.constructor !== Array) {
- a = _objectToArray(a);
- }
- return _isNumber(a[0]) && _isNumber(a[1]);
- }
- function _3d(a) {
- // checks if the number of arguments are correct in count and are valid (should be numbers)
- if (a.constructor !== Array) {
- a = _objectToArray(a);
- }
- return _isNumber(a[0]) && _isNumber(a[1]) && _isNumber(a[2]);
- }
- function _containsOnlyNumbers(a) {
- // checks if the number of arguments are correct in count and are valid (should be numbers)
- if (!Array.isArray(a)) {
- a = _objectToArray(a);
- }
- return a.every(_isNumber);
- }
- function _parametricLine(a) {
- if (a.constructor !== Array) {
- a = _objectToArray(a);
- }
- return _isNumber(a[0]) && _isNumber(a[1]) && _isNumber(a[2]) && _isNumber(a[3]) && _isNumber(a[4]) && _isNumber(a[5]);
- }
- function _objectToArray(o) {
- var keys = Object.keys(o);
- var a = [];
- for (var i = 0; i < keys.length; i++) {
- a.push(o[keys[i]]);
- }
- return a;
- }
- function _pairwise(a) {
- // checks for valid arguments passed to _distancePairwise(Array)
- if (a[0].length === 2 && _isNumber(a[0][0]) && _isNumber(a[0][1])) {
- if (a.some(aI => aI.length !== 2 || !_isNumber(aI[0]) || !_isNumber(aI[1]))) {
- return false;
- }
- } else if (a[0].length === 3 && _isNumber(a[0][0]) && _isNumber(a[0][1]) && _isNumber(a[0][2])) {
- if (a.some(aI => aI.length !== 3 || !_isNumber(aI[0]) || !_isNumber(aI[1]) || !_isNumber(aI[2]))) {
- return false;
- }
- } else {
- return false;
- }
- return true;
- }
- function _distancePointLine2D(x, y, a, b, c) {
- var num = abs(addScalar(addScalar(multiplyScalar(a, x), multiplyScalar(b, y)), c));
- var den = sqrt(addScalar(multiplyScalar(a, a), multiplyScalar(b, b)));
- return divideScalar(num, den);
- }
- function _distancePointLine3D(x, y, z, x0, y0, z0, a, b, c) {
- var num = [subtract(multiplyScalar(subtract(y0, y), c), multiplyScalar(subtract(z0, z), b)), subtract(multiplyScalar(subtract(z0, z), a), multiplyScalar(subtract(x0, x), c)), subtract(multiplyScalar(subtract(x0, x), b), multiplyScalar(subtract(y0, y), a))];
- num = sqrt(addScalar(addScalar(multiplyScalar(num[0], num[0]), multiplyScalar(num[1], num[1])), multiplyScalar(num[2], num[2])));
- var den = sqrt(addScalar(addScalar(multiplyScalar(a, a), multiplyScalar(b, b)), multiplyScalar(c, c)));
- return divideScalar(num, den);
- }
- function _euclideanDistance(x, y) {
- var vectorSize = x.length;
- var result = 0;
- var diff = 0;
- for (var i = 0; i < vectorSize; i++) {
- diff = subtract(x[i], y[i]);
- result = addScalar(multiplyScalar(diff, diff), result);
- }
- return sqrt(result);
- }
- function _distancePairwise(a) {
- var result = [];
- var pointA = [];
- var pointB = [];
- for (var i = 0; i < a.length - 1; i++) {
- for (var j = i + 1; j < a.length; j++) {
- if (a[0].length === 2) {
- pointA = [a[i][0], a[i][1]];
- pointB = [a[j][0], a[j][1]];
- } else if (a[0].length === 3) {
- pointA = [a[i][0], a[i][1], a[i][2]];
- pointB = [a[j][0], a[j][1], a[j][2]];
- }
- result.push(_euclideanDistance(pointA, pointB));
- }
- }
- return result;
- }
- });
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