highcharts
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JavaScript charting framework
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JavaScript
/**
* @license Highcharts JS v10.0.0 (2022-03-07)
*
* (c) 2016-2021 Highsoft AS
* Authors: Jon Arild Nygard
*
* License: www.highcharts.com/license
*/
(function (factory) {
if (typeof module === 'object' && module.exports) {
factory['default'] = factory;
module.exports = factory;
} else if (typeof define === 'function' && define.amd) {
define('highcharts/modules/wordcloud', ['highcharts'], function (Highcharts) {
factory(Highcharts);
factory.Highcharts = Highcharts;
return factory;
});
} else {
factory(typeof Highcharts !== 'undefined' ? Highcharts : undefined);
}
}(function (Highcharts) {
'use strict';
var _modules = Highcharts ? Highcharts._modules : {};
function _registerModule(obj, path, args, fn) {
if (!obj.hasOwnProperty(path)) {
obj[path] = fn.apply(null, args);
if (typeof CustomEvent === 'function') {
window.dispatchEvent(
new CustomEvent(
'HighchartsModuleLoaded',
{ detail: { path: path, module: obj[path] }
})
);
}
}
}
_registerModule(_modules, 'Series/DrawPointComposition.js', [], function () {
/* *
*
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
*
* */
/* *
*
* Composition
*
* */
var DrawPointComposition;
(function (DrawPointComposition) {
/* *
*
* Declarations
*
* */
/* *
*
* Constants
*
* */
var composedClasses = [];
/* *
*
* Functions
*
* */
/* eslint-disable valid-jsdoc */
/**
* @private
*/
function compose(PointClass) {
if (composedClasses.indexOf(PointClass) === -1) {
composedClasses.push(PointClass);
var pointProto = PointClass.prototype;
pointProto.draw = draw;
if (!pointProto.shouldDraw) {
pointProto.shouldDraw = shouldDraw;
}
}
return PointClass;
}
DrawPointComposition.compose = compose;
/**
* Handles the drawing of a component.
* Can be used for any type of component that reserves the graphic property,
* and provides a shouldDraw on its context.
*
* @private
*
* @todo add type checking.
* @todo export this function to enable usage
*/
function draw(params) {
var _this = this;
var animatableAttribs = params.animatableAttribs,
onComplete = params.onComplete,
css = params.css,
renderer = params.renderer;
var animation = (this.series && this.series.chart.hasRendered) ?
// Chart-level animation on updates
void 0 :
// Series-level animation on new points
(this.series &&
this.series.options.animation);
var graphic = this.graphic;
params.attribs = params.attribs || {};
// Assigning class in dot notation does go well in IE8
// eslint-disable-next-line dot-notation
params.attribs['class'] = this.getClassName();
if (this.shouldDraw()) {
if (!graphic) {
this.graphic = graphic = params.shapeType === 'text' ?
renderer.text() :
renderer[params.shapeType](params.shapeArgs || {});
graphic.add(params.group);
}
if (css) {
graphic.css(css);
}
graphic
.attr(params.attribs)
.animate(animatableAttribs, params.isNew ? false : animation, onComplete);
}
else if (graphic) {
var destroy_1 = function () {
_this.graphic = graphic = (graphic && graphic.destroy());
if (typeof onComplete === 'function') {
onComplete();
}
};
// animate only runs complete callback if something was animated.
if (Object.keys(animatableAttribs).length) {
graphic.animate(animatableAttribs, void 0, function () {
destroy_1();
});
}
else {
destroy_1();
}
}
}
/**
* @private
*/
function shouldDraw() {
return !this.isNull;
}
})(DrawPointComposition || (DrawPointComposition = {}));
/* *
*
* Default Export
*
* */
return DrawPointComposition;
});
_registerModule(_modules, 'Series/Wordcloud/WordcloudPoint.js', [_modules['Series/DrawPointComposition.js'], _modules['Core/Series/SeriesRegistry.js'], _modules['Core/Utilities.js']], function (DrawPointComposition, SeriesRegistry, U) {
/* *
*
* Experimental Highcharts module which enables visualization of a word cloud.
*
* (c) 2016-2021 Highsoft AS
* Authors: Jon Arild Nygard
*
* License: www.highcharts.com/license
*
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
* */
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d,
b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d,
b) { d.__proto__ = b; }) ||
function (d,
b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var ColumnSeries = SeriesRegistry.seriesTypes.column;
var extend = U.extend;
var WordcloudPoint = /** @class */ (function (_super) {
__extends(WordcloudPoint, _super);
function WordcloudPoint() {
var _this = _super !== null && _super.apply(this,
arguments) || this;
/* *
*
* Properties
*
* */
_this.dimensions = void 0;
_this.options = void 0;
_this.polygon = void 0;
_this.rect = void 0;
_this.series = void 0;
return _this;
}
/* *
*
* Functions
*
* */
WordcloudPoint.prototype.isValid = function () {
return true;
};
return WordcloudPoint;
}(ColumnSeries.prototype.pointClass));
extend(WordcloudPoint.prototype, {
weight: 1
});
DrawPointComposition.compose(WordcloudPoint);
/* *
*
* Default Export
*
* */
return WordcloudPoint;
});
_registerModule(_modules, 'Series/Wordcloud/WordcloudUtils.js', [_modules['Core/Globals.js'], _modules['Core/Utilities.js']], function (H, U) {
/* *
*
* Experimental Highcharts module which enables visualization of a word cloud.
*
* (c) 2016-2021 Highsoft AS
* Authors: Jon Arild Nygard
*
* License: www.highcharts.com/license
*
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
* */
var deg2rad = H.deg2rad;
var extend = U.extend,
find = U.find,
isNumber = U.isNumber,
isObject = U.isObject,
merge = U.merge;
/* *
*
* Functions
*
* */
/* eslint-disable valid-jsdoc */
/**
* Detects if there is a collision between two rectangles.
*
* @private
* @function isRectanglesIntersecting
*
* @param {Highcharts.PolygonBoxObject} r1
* First rectangle.
*
* @param {Highcharts.PolygonBoxObject} r2
* Second rectangle.
*
* @return {boolean}
* Returns true if the rectangles overlap.
*/
function isRectanglesIntersecting(r1, r2) {
return !(r2.left > r1.right ||
r2.right < r1.left ||
r2.top > r1.bottom ||
r2.bottom < r1.top);
}
/**
* Calculates the normals to a line between two points.
*
* @private
* @function getNormals
* @param {Highcharts.PolygonPointObject} p1
* Start point for the line. Array of x and y value.
* @param {Highcharts.PolygonPointObject} p2
* End point for the line. Array of x and y value.
* @return {Highcharts.PolygonObject}
* Returns the two normals in an array.
*/
function getNormals(p1, p2) {
var dx = p2[0] - p1[0], // x2 - x1
dy = p2[1] - p1[1]; // y2 - y1
return [
[-dy,
dx],
[dy, -dx]
];
}
/**
* @private
*/
function getAxesFromPolygon(polygon) {
var points,
axes = polygon.axes || [];
if (!axes.length) {
axes = [];
points = points = polygon.concat([polygon[0]]);
points.reduce(function findAxis(p1, p2) {
var normals = getNormals(p1,
p2),
axis = normals[0]; // Use the left normal as axis.
// Check that the axis is unique.
if (!find(axes,
function (existing) {
return existing[0] === axis[0] &&
existing[1] === axis[1];
})) {
axes.push(axis);
}
// Return p2 to be used as p1 in next iteration.
return p2;
});
polygon.axes = axes;
}
return axes;
}
/**
* Projects a polygon onto a coordinate.
*
* @private
* @function project
* @param {Highcharts.PolygonObject} polygon
* Array of points in a polygon.
* @param {Highcharts.PolygonPointObject} target
* The coordinate of pr
*/
function project(polygon, target) {
var products = polygon.map(function (point) {
var ax = point[0],
ay = point[1],
bx = target[0],
by = target[1];
return ax * bx + ay * by;
});
return {
min: Math.min.apply(this, products),
max: Math.max.apply(this, products)
};
}
/**
* @private
*/
function isPolygonsOverlappingOnAxis(axis, polygon1, polygon2) {
var projection1 = project(polygon1,
axis),
projection2 = project(polygon2,
axis),
isOverlapping = !(projection2.min > projection1.max ||
projection2.max < projection1.min);
return !isOverlapping;
}
/**
* Checks wether two convex polygons are colliding by using the Separating
* Axis Theorem.
*
* @private
* @function isPolygonsColliding
* @param {Highcharts.PolygonObject} polygon1
* First polygon.
*
* @param {Highcharts.PolygonObject} polygon2
* Second polygon.
*
* @return {boolean}
* Returns true if they are colliding, otherwise false.
*/
function isPolygonsColliding(polygon1, polygon2) {
// Get the axis from both polygons.
var axes1 = getAxesFromPolygon(polygon1),
axes2 = getAxesFromPolygon(polygon2),
axes = axes1.concat(axes2),
overlappingOnAllAxes = !find(axes,
function (axis) { return isPolygonsOverlappingOnAxis(axis,
polygon1,
polygon2); });
return overlappingOnAllAxes;
}
/**
* Detects if a word collides with any previously placed words.
*
* @private
* @function intersectsAnyWord
*
* @param {Highcharts.Point} point
* Point which the word is connected to.
*
* @param {Array<Highcharts.Point>} points
* Previously placed points to check against.
*
* @return {boolean}
* Returns true if there is collision.
*/
function intersectsAnyWord(point, points) {
var intersects = false,
rect = point.rect,
polygon = point.polygon,
lastCollidedWith = point.lastCollidedWith,
isIntersecting = function (p) {
var result = isRectanglesIntersecting(rect,
p.rect);
if (result &&
(point.rotation % 90 || p.rotation % 90)) {
result = isPolygonsColliding(polygon, p.polygon);
}
return result;
};
// If the point has already intersected a different point, chances are
// they are still intersecting. So as an enhancement we check this
// first.
if (lastCollidedWith) {
intersects = isIntersecting(lastCollidedWith);
// If they no longer intersects, remove the cache from the point.
if (!intersects) {
delete point.lastCollidedWith;
}
}
// If not already found, then check if we can find a point that is
// intersecting.
if (!intersects) {
intersects = !!find(points, function (p) {
var result = isIntersecting(p);
if (result) {
point.lastCollidedWith = p;
}
return result;
});
}
return intersects;
}
/**
* Gives a set of cordinates for an Archimedian Spiral.
*
* @private
* @function archimedeanSpiral
*
* @param {number} attempt
* How far along the spiral we have traversed.
*
* @param {Highcharts.WordcloudSpiralParamsObject} [params]
* Additional parameters.
*
* @return {boolean|Highcharts.PositionObject}
* Resulting coordinates, x and y. False if the word should be dropped from
* the visualization.
*/
function archimedeanSpiral(attempt, params) {
var field = params.field,
result = false,
maxDelta = (field.width * field.width) + (field.height * field.height),
t = attempt * 0.8; // 0.2 * 4 = 0.8. Enlarging the spiral.
// Emergency brake. TODO make spiralling logic more foolproof.
if (attempt <= 10000) {
result = {
x: t * Math.cos(t),
y: t * Math.sin(t)
};
if (!(Math.min(Math.abs(result.x), Math.abs(result.y)) < maxDelta)) {
result = false;
}
}
return result;
}
/**
* Gives a set of cordinates for an rectangular spiral.
*
* @private
* @function squareSpiral
*
* @param {number} attempt
* How far along the spiral we have traversed.
*
* @param {Highcharts.WordcloudSpiralParamsObject} [params]
* Additional parameters.
*
* @return {boolean|Highcharts.PositionObject}
* Resulting coordinates, x and y. False if the word should be dropped from
* the visualization.
*/
function squareSpiral(attempt, params) {
var a = attempt * 4,
k = Math.ceil((Math.sqrt(a) - 1) / 2),
t = 2 * k + 1,
m = Math.pow(t, 2),
isBoolean = function (x) {
return typeof x === 'boolean';
}, result = false;
t -= 1;
if (attempt <= 10000) {
if (isBoolean(result) && a >= m - t) {
result = {
x: k - (m - a),
y: -k
};
}
m -= t;
if (isBoolean(result) && a >= m - t) {
result = {
x: -k,
y: -k + (m - a)
};
}
m -= t;
if (isBoolean(result)) {
if (a >= m - t) {
result = {
x: -k + (m - a),
y: k
};
}
else {
result = {
x: k,
y: k - (m - a - t)
};
}
}
result.x *= 5;
result.y *= 5;
}
return result;
}
/**
* Gives a set of cordinates for an rectangular spiral.
*
* @private
* @function rectangularSpiral
*
* @param {number} attempt
* How far along the spiral we have traversed.
*
* @param {Highcharts.WordcloudSpiralParamsObject} [params]
* Additional parameters.
*
* @return {boolean|Higcharts.PositionObject}
* Resulting coordinates, x and y. False if the word should be dropped from
* the visualization.
*/
function rectangularSpiral(attempt, params) {
var result = squareSpiral(attempt,
params),
field = params.field;
if (result) {
result.x *= field.ratioX;
result.y *= field.ratioY;
}
return result;
}
/**
* @private
* @function getRandomPosition
*
* @param {number} size
* Random factor.
*
* @return {number}
* Random position.
*/
function getRandomPosition(size) {
return Math.round((size * (Math.random() + 0.5)) / 2);
}
/**
* Calculates the proper scale to fit the cloud inside the plotting area.
*
* @private
* @function getScale
*
* @param {number} targetWidth
* Width of target area.
*
* @param {number} targetHeight
* Height of target area.
*
* @param {Object} field
* The playing field.
*
* @param {Highcharts.Series} series
* Series object.
*
* @return {number}
* Returns the value to scale the playing field up to the size of the target
* area.
*/
function getScale(targetWidth, targetHeight, field) {
var height = Math.max(Math.abs(field.top),
Math.abs(field.bottom)) * 2,
width = Math.max(Math.abs(field.left),
Math.abs(field.right)) * 2,
scaleX = width > 0 ? 1 / width * targetWidth : 1,
scaleY = height > 0 ? 1 / height * targetHeight : 1;
return Math.min(scaleX, scaleY);
}
/**
* Calculates what is called the playing field. The field is the area which
* all the words are allowed to be positioned within. The area is
* proportioned to match the target aspect ratio.
*
* @private
* @function getPlayingField
*
* @param {number} targetWidth
* Width of the target area.
*
* @param {number} targetHeight
* Height of the target area.
*
* @param {Array<Highcharts.Point>} data
* Array of points.
*
* @param {Object} data.dimensions
* The height and width of the word.
*
* @return {Object}
* The width and height of the playing field.
*/
function getPlayingField(targetWidth, targetHeight, data) {
var info = data.reduce(function (obj,
point) {
var dimensions = point.dimensions,
x = Math.max(dimensions.width,
dimensions.height);
// Find largest height.
obj.maxHeight = Math.max(obj.maxHeight, dimensions.height);
// Find largest width.
obj.maxWidth = Math.max(obj.maxWidth, dimensions.width);
// Sum up the total maximum area of all the words.
obj.area += x * x;
return obj;
}, {
maxHeight: 0,
maxWidth: 0,
area: 0
}),
/**
* Use largest width, largest height, or root of total area to give
* size to the playing field.
*/
x = Math.max(info.maxHeight, // Have enough space for the tallest word
info.maxWidth, // Have enough space for the broadest word
// Adjust 15% to account for close packing of words
Math.sqrt(info.area) * 0.85), ratioX = targetWidth > targetHeight ? targetWidth / targetHeight : 1, ratioY = targetHeight > targetWidth ? targetHeight / targetWidth : 1;
return {
width: x * ratioX,
height: x * ratioY,
ratioX: ratioX,
ratioY: ratioY
};
}
/**
* Calculates a number of degrees to rotate, based upon a number of
* orientations within a range from-to.
*
* @private
* @function getRotation
*
* @param {number} [orientations]
* Number of orientations.
*
* @param {number} [index]
* Index of point, used to decide orientation.
*
* @param {number} [from]
* The smallest degree of rotation.
*
* @param {number} [to]
* The largest degree of rotation.
*
* @return {boolean|number}
* Returns the resulting rotation for the word. Returns false if invalid
* input parameters.
*/
function getRotation(orientations, index, from, to) {
var result = false, // Default to false
range,
intervals,
orientation;
// Check if we have valid input parameters.
if (isNumber(orientations) &&
isNumber(index) &&
isNumber(from) &&
isNumber(to) &&
orientations > 0 &&
index > -1 &&
to > from) {
range = to - from;
intervals = range / (orientations - 1 || 1);
orientation = index % orientations;
result = from + (orientation * intervals);
}
return result;
}
/**
* Calculates the spiral positions and store them in scope for quick access.
*
* @private
* @function getSpiral
*
* @param {Function} fn
* The spiral function.
*
* @param {Object} params
* Additional parameters for the spiral.
*
* @return {Function}
* Function with access to spiral positions.
*/
function getSpiral(fn, params) {
var length = 10000,
i,
arr = [];
for (i = 1; i < length; i++) {
// @todo unnecessary amount of precaclulation
arr.push(fn(i, params));
}
return function (attempt) {
return attempt <= length ? arr[attempt - 1] : false;
};
}
/**
* Detects if a word is placed outside the playing field.
*
* @private
* @function outsidePlayingField
*
* @param {Highcharts.PolygonBoxObject} rect
* The word box.
*
* @param {Highcharts.WordcloudFieldObject} field
* The width and height of the playing field.
*
* @return {boolean}
* Returns true if the word is placed outside the field.
*/
function outsidePlayingField(rect, field) {
var playingField = {
left: -(field.width / 2),
right: field.width / 2,
top: -(field.height / 2),
bottom: field.height / 2
};
return !(playingField.left < rect.left &&
playingField.right > rect.right &&
playingField.top < rect.top &&
playingField.bottom > rect.bottom);
}
/**
* @private
*/
function movePolygon(deltaX, deltaY, polygon) {
return polygon.map(function (point) {
return [
point[0] + deltaX,
point[1] + deltaY
];
});
}
/**
* Check if a point intersects with previously placed words, or if it goes
* outside the field boundaries. If a collision, then try to adjusts the
* position.
*
* @private
* @function intersectionTesting
*
* @param {Highcharts.Point} point
* Point to test for intersections.
*
* @param {Highcharts.WordcloudTestOptionsObject} options
* Options object.
*
* @return {boolean|Highcharts.PositionObject}
* Returns an object with how much to correct the positions. Returns false
* if the word should not be placed at all.
*/
function intersectionTesting(point, options) {
var placed = options.placed,
field = options.field,
rectangle = options.rectangle,
polygon = options.polygon,
spiral = options.spiral,
attempt = 1,
delta = {
x: 0,
y: 0
},
// Make a copy to update values during intersection testing.
rect = point.rect = extend({},
rectangle);
point.polygon = polygon;
point.rotation = options.rotation;
/* while w intersects any previously placed words:
do {
move w a little bit along a spiral path
} while any part of w is outside the playing field and
the spiral radius is still smallish */
while (delta !== false &&
(intersectsAnyWord(point, placed) ||
outsidePlayingField(rect, field))) {
delta = spiral(attempt);
if (isObject(delta)) {
// Update the DOMRect with new positions.
rect.left = rectangle.left + delta.x;
rect.right = rectangle.right + delta.x;
rect.top = rectangle.top + delta.y;
rect.bottom = rectangle.bottom + delta.y;
point.polygon = movePolygon(delta.x, delta.y, polygon);
}
attempt++;
}
return delta;
}
/**
* Extends the playing field to have enough space to fit a given word.
*
* @private
* @function extendPlayingField
*
* @param {Highcharts.WordcloudFieldObject} field
* The width, height and ratios of a playing field.
*
* @param {Highcharts.PolygonBoxObject} rectangle
* The bounding box of the word to add space for.
*
* @return {Highcharts.WordcloudFieldObject}
* Returns the extended playing field with updated height and width.
*/
function extendPlayingField(field, rectangle) {
var height,
width,
ratioX,
ratioY,
x,
extendWidth,
extendHeight,
result;
if (isObject(field) && isObject(rectangle)) {
height = (rectangle.bottom - rectangle.top);
width = (rectangle.right - rectangle.left);
ratioX = field.ratioX;
ratioY = field.ratioY;
// Use the same variable to extend both the height and width.
x = ((width * ratioX) > (height * ratioY)) ? width : height;
// Multiply variable with ratios to preserve aspect ratio.
extendWidth = x * ratioX;
extendHeight = x * ratioY;
// Calculate the size of the new field after adding
// space for the word.
result = merge(field, {
// Add space on the left and right.
width: field.width + (extendWidth * 2),
// Add space on the top and bottom.
height: field.height + (extendHeight * 2)
});
}
else {
result = field;
}
// Return the new extended field.
return result;
}
/**
* If a rectangle is outside a give field, then the boundaries of the field
* is adjusted accordingly. Modifies the field object which is passed as the
* first parameter.
*
* @private
* @function updateFieldBoundaries
*
* @param {Highcharts.WordcloudFieldObject} field
* The bounding box of a playing field.
*
* @param {Highcharts.PolygonBoxObject} rectangle
* The bounding box for a placed point.
*
* @return {Highcharts.WordcloudFieldObject}
* Returns a modified field object.
*/
function updateFieldBoundaries(field, rectangle) {
// @todo improve type checking.
if (!isNumber(field.left) || field.left > rectangle.left) {
field.left = rectangle.left;
}
if (!isNumber(field.right) || field.right < rectangle.right) {
field.right = rectangle.right;
}
if (!isNumber(field.top) || field.top > rectangle.top) {
field.top = rectangle.top;
}
if (!isNumber(field.bottom) || field.bottom < rectangle.bottom) {
field.bottom = rectangle.bottom;
}
return field;
}
/**
* Alternative solution to correctFloat.
* E.g Highcharts.correctFloat(123, 2) returns 120, when it should be 123.
*
* @private
* @function correctFloat
*/
function correctFloat(number, precision) {
var p = isNumber(precision) ? precision : 14,
magnitude = Math.pow(10,
p);
return Math.round(number * magnitude) / magnitude;
}
/**
* @private
*/
function getBoundingBoxFromPolygon(points) {
return points.reduce(function (obj, point) {
var x = point[0],
y = point[1];
obj.left = Math.min(x, obj.left);
obj.right = Math.max(x, obj.right);
obj.bottom = Math.max(y, obj.bottom);
obj.top = Math.min(y, obj.top);
return obj;
}, {
left: Number.MAX_VALUE,
right: -Number.MAX_VALUE,
bottom: -Number.MAX_VALUE,
top: Number.MAX_VALUE
});
}
/**
* @private
*/
function getPolygon(x, y, width, height, rotation) {
var origin = [x,
y],
left = x - (width / 2),
right = x + (width / 2),
top = y - (height / 2),
bottom = y + (height / 2),
polygon = [
[left,
top],
[right,
top],
[right,
bottom],
[left,
bottom]
];
return polygon.map(function (point) {
return rotate2DToPoint(point, origin, -rotation);
});
}
/**
* Rotates a point clockwise around the origin.
*
* @private
* @function rotate2DToOrigin
* @param {Highcharts.PolygonPointObject} point
* The x and y coordinates for the point.
* @param {number} angle
* The angle of rotation.
* @return {Highcharts.PolygonPointObject}
* The x and y coordinate for the rotated point.
*/
function rotate2DToOrigin(point, angle) {
var x = point[0],
y = point[1],
rad = deg2rad * -angle,
cosAngle = Math.cos(rad),
sinAngle = Math.sin(rad);
return [
correctFloat(x * cosAngle - y * sinAngle),
correctFloat(x * sinAngle + y * cosAngle)
];
}
/**
* Rotate a point clockwise around another point.
*
* @private
* @function rotate2DToPoint
* @param {Highcharts.PolygonPointObject} point
* The x and y coordinates for the point.
* @param {Highcharts.PolygonPointObject} origin
* The point to rotate around.
* @param {number} angle
* The angle of rotation.
* @return {Highcharts.PolygonPointObject}
* The x and y coordinate for the rotated point.
*/
function rotate2DToPoint(point, origin, angle) {
var x = point[0] - origin[0],
y = point[1] - origin[1],
rotated = rotate2DToOrigin([x,
y],
angle);
return [
rotated[0] + origin[0],
rotated[1] + origin[1]
];
}
/* *
*
* Default export
*
* */
var WordcloudUtils = {
archimedeanSpiral: archimedeanSpiral,
extendPlayingField: extendPlayingField,
getBoundingBoxFromPolygon: getBoundingBoxFromPolygon,
getPlayingField: getPlayingField,
getPolygon: getPolygon,
getRandomPosition: getRandomPosition,
getRotation: getRotation,
getScale: getScale,
getSpiral: getSpiral,
intersectionTesting: intersectionTesting,
isPolygonsColliding: isPolygonsColliding,
isRectanglesIntersecting: isRectanglesIntersecting,
rectangularSpiral: rectangularSpiral,
rotate2DToOrigin: rotate2DToOrigin,
rotate2DToPoint: rotate2DToPoint,
squareSpiral: squareSpiral,
updateFieldBoundaries: updateFieldBoundaries
};
return WordcloudUtils;
});
_registerModule(_modules, 'Series/Wordcloud/WordcloudSeries.js', [_modules['Core/Globals.js'], _modules['Core/Series/Series.js'], _modules['Core/Series/SeriesRegistry.js'], _modules['Core/Utilities.js'], _modules['Series/Wordcloud/WordcloudPoint.js'], _modules['Series/Wordcloud/WordcloudUtils.js']], function (H, Series, SeriesRegistry, U, WordcloudPoint, WordcloudUtils) {
/* *
*
* Experimental Highcharts module which enables visualization of a word cloud.
*
* (c) 2016-2021 Highsoft AS
* Authors: Jon Arild Nygard
*
* License: www.highcharts.com/license
*
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
* */
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d,
b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d,
b) { d.__proto__ = b; }) ||
function (d,
b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var noop = H.noop;
var ColumnSeries = SeriesRegistry.seriesTypes.column;
var extend = U.extend,
isArray = U.isArray,
isNumber = U.isNumber,
isObject = U.isObject,
merge = U.merge;
var archimedeanSpiral = WordcloudUtils.archimedeanSpiral,
extendPlayingField = WordcloudUtils.extendPlayingField,
getBoundingBoxFromPolygon = WordcloudUtils.getBoundingBoxFromPolygon,
getPlayingField = WordcloudUtils.getPlayingField,
getPolygon = WordcloudUtils.getPolygon,
getRandomPosition = WordcloudUtils.getRandomPosition,
getRotation = WordcloudUtils.getRotation,
getScale = WordcloudUtils.getScale,
getSpiral = WordcloudUtils.getSpiral,
intersectionTesting = WordcloudUtils.intersectionTesting,
isPolygonsColliding = WordcloudUtils.isPolygonsColliding,
rectangularSpiral = WordcloudUtils.rectangularSpiral,
rotate2DToOrigin = WordcloudUtils.rotate2DToOrigin,
rotate2DToPoint = WordcloudUtils.rotate2DToPoint,
squareSpiral = WordcloudUtils.squareSpiral,
updateFieldBoundaries = WordcloudUtils.updateFieldBoundaries;
/* *
*
* Class
*
* */
/**
* @private
* @class
* @name Highcharts.seriesTypes.wordcloud
*
* @augments Highcharts.Series
*/
var WordcloudSeries = /** @class */ (function (_super) {
__extends(WordcloudSeries, _super);
function WordcloudSeries() {
/* *
*
* Static properties
*
* */
var _this = _super !== null && _super.apply(this,
arguments) || this;
/* *
*
* Properties
*
* */
_this.data = void 0;
_this.options = void 0;
_this.points = void 0;
return _this;
}
/**
*
* Functions
*
*/
WordcloudSeries.prototype.bindAxes = function () {
var wordcloudAxis = {
endOnTick: false,
gridLineWidth: 0,
lineWidth: 0,
maxPadding: 0,
startOnTick: false,
title: void 0,
tickPositions: []
};
Series.prototype.bindAxes.call(this);
extend(this.yAxis.options, wordcloudAxis);
extend(this.xAxis.options, wordcloudAxis);
};
WordcloudSeries.prototype.pointAttribs = function (point, state) {
var attribs = H.seriesTypes.column.prototype
.pointAttribs.call(this,
point,
state);
delete attribs.stroke;
delete attribs['stroke-width'];
return attribs;
};
/**
* Calculates the fontSize of a word based on its weight.
*
* @private
* @function Highcharts.Series#deriveFontSize
*
* @param {number} [relativeWeight=0]
* The weight of the word, on a scale 0-1.
*
* @param {number} [maxFontSize=1]
* The maximum font size of a word.
*
* @param {number} [minFontSize=1]
* The minimum font size of a word.
*
* @return {number}
* Returns the resulting fontSize of a word. If minFontSize is larger then
* maxFontSize the result will equal minFontSize.
*/
WordcloudSeries.prototype.deriveFontSize = function (relativeWeight, maxFontSize, minFontSize) {
var weight = isNumber(relativeWeight) ? relativeWeight : 0,
max = isNumber(maxFontSize) ? maxFontSize : 1,
min = isNumber(minFontSize) ? minFontSize : 1;
return Math.floor(Math.max(min, weight * max));
};
WordcloudSeries.prototype.drawPoints = function () {
var series = this,
hasRendered = series.hasRendered,
xAxis = series.xAxis,
yAxis = series.yAxis,
chart = series.chart,
group = series.group,
options = series.options,
animation = options.animation,
allowExtendPlayingField = options.allowExtendPlayingField,
renderer = chart.renderer,
testElement = renderer.text().add(group),
placed = [],
placementStrategy = series.placementStrategy[options.placementStrategy],
spiral,
rotation = options.rotation,
scale,
weights = series.points.map(function (p) {
return p.weight;
}), maxWeight = Math.max.apply(null, weights),
// concat() prevents from sorting the original array.
data = series.points.concat().sort(function (a, b) {
return b.weight - a.weight; // Sort descending
}), field;
// Reset the scale before finding the dimensions (#11993).
// SVGGRaphicsElement.getBBox() (used in SVGElement.getBBox(boolean))
// returns slightly different values for the same element depending on
// whether it is rendered in a group which has already defined scale
// (e.g. 6) or in the group without a scale (scale = 1).
series.group.attr({
scaleX: 1,
scaleY: 1
});
// Get the dimensions for each word.
// Used in calculating the playing field.
data.forEach(function (point) {
var relativeWeight = 1 / maxWeight * point.weight,
fontSize = series.deriveFontSize(relativeWeight,
options.maxFontSize,
options.minFontSize),
css = extend({
fontSize: fontSize + 'px'
},
options.style),
bBox;
testElement.css(css).attr({
x: 0,
y: 0,
text: point.name
});
bBox = testElement.getBBox(true);
point.dimensions = {
height: bBox.height,
width: bBox.width
};
});
// Calculate the playing field.
field = getPlayingField(xAxis.len, yAxis.len, data);
spiral = getSpiral(series.spirals[options.spiral], {
field: field
});
// Draw all the points.
data.forEach(function (point) {
var relativeWeight = 1 / maxWeight * point.weight,
fontSize = series.deriveFontSize(relativeWeight,
options.maxFontSize,
options.minFontSize),
css = extend({
fontSize: fontSize + 'px'
},
options.style),
placement = placementStrategy(point, {
data: data,
field: field,
placed: placed,
rotation: rotation
}),
attr = extend(series.pointAttribs(point, (point.selected && 'select')), {
align: 'center',
'alignment-baseline': 'middle',
'dominant-baseline': 'middle',
x: placement.x,
y: placement.y,
text: point.name,
rotation: isNumber(placement.rotation) ?
placement.rotation :
void 0
}),
polygon = getPolygon(placement.x,
placement.y,
point.dimensions.width,
point.dimensions.height,
placement.rotation),
rectangle = getBoundingBoxFromPolygon(polygon),
delta = intersectionTesting(point, {
rectangle: rectangle,
polygon: polygon,
field: field,
placed: placed,
spiral: spiral,
rotation: placement.rotation
}),
animate;
// If there is no space for the word, extend the playing field.
if (!delta && allowExtendPlayingField) {
// Extend the playing field to fit the word.
field = extendPlayingField(field, rectangle);
// Run intersection testing one more time to place the word.
delta = intersectionTesting(point, {
rectangle: rectangle,
polygon: polygon,
field: field,
placed: placed,
spiral: spiral,
rotation: placement.rotation
});
}
// Check if point was placed, if so delete it, otherwise place it
// on the correct positions.
if (isObject(delta)) {
attr.x = (attr.x || 0) + delta.x;
attr.y = (attr.y || 0) + delta.y;
rectangle.left += delta.x;
rectangle.right += delta.x;
rectangle.top += delta.y;
rectangle.bottom += delta.y;
field = updateFieldBoundaries(field, rectangle);
placed.push(point);
point.isNull = false;
point.isInside = true; // #15447
}
else {
point.isNull = true;
}
if (animation) {
// Animate to new positions
animate = {
x: attr.x,
y: attr.y
};
// Animate from center of chart
if (!hasRendered) {
att