@syncfusion/ej2-maps
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The Maps component is used to visualize the geographical data and represent the statistical data of a particular geographical area on earth with user interactivity, and provides various customizing options
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JavaScript
import { ColorValue } from '../index';
import { isNullOrUndefined } from '@syncfusion/ej2-base';
import { getValueFromObject } from '../utils/helper';
/**
* ColorMapping class
*/
var ColorMapping = /** @class */ (function () {
/* eslint-disable @typescript-eslint/no-unused-vars */
/* eslint-disable @typescript-eslint/no-empty-function */
function ColorMapping(maps) {
}
/* eslint-enable @typescript-eslint/no-unused-vars */
/* eslint-enable @typescript-eslint/no-empty-function */
/**
* To get color based on shape settings.
*
* @param { ShapeSettingsModel } shapeSettings - Specifies the shape settings.
* @param { object } layerData - Specifies the layer data.
* @param { string } color - Specifies the color.
* @returns {object} - Returns the object.
* @private
*/
// eslint-disable-next-line @typescript-eslint/no-explicit-any
ColorMapping.prototype.getShapeColorMapping = function (shapeSettings, layerData, color) {
var colorValuePath = shapeSettings.colorValuePath ? shapeSettings.colorValuePath : shapeSettings.valuePath;
var equalValue = (!isNullOrUndefined(colorValuePath)) ? ((colorValuePath.indexOf('.') > -1) ?
getValueFromObject(layerData, colorValuePath) : layerData[colorValuePath]) : layerData[colorValuePath];
var colorValue = Number(equalValue);
// eslint-disable-next-line @typescript-eslint/no-explicit-any
var shapeColor = this.getColorByValue(shapeSettings.colorMapping, colorValue, equalValue);
return !isNullOrUndefined(shapeColor) ? shapeColor : color;
};
/**
* To color by value and color mapping.
*
* @param {ColorMappingSettingsModel[]} colorMapping - Specifies the color mapping instance.
* @param {number} colorValue - Specifies the color value
* @param {string} equalValue - Specifies the equal value.
* @returns {any} - Returns the color mapping values.
* @private
*/
// eslint-disable-next-line @typescript-eslint/no-explicit-any
ColorMapping.prototype.getColorByValue = function (colorMapping, colorValue, equalValue) {
if (isNaN(colorValue) && isNullOrUndefined(equalValue)) {
return null;
}
var fill = '';
var opacity;
var gradientFill;
for (var _i = 0, colorMapping_1 = colorMapping; _i < colorMapping_1.length; _i++) {
var colorMap = colorMapping_1[_i];
if ((!isNullOrUndefined(colorMap.from) && !isNullOrUndefined(colorMap.to)
&& (colorValue >= colorMap.from && colorValue <= colorMap.to)) ||
(colorMap.value === equalValue)) {
if (Object.prototype.toString.call(colorMap.color) === '[object Array]') {
if (!isNullOrUndefined(colorMap.value)) {
fill = colorMap.color[0];
}
else {
gradientFill = this.getColor(colorMap, colorValue);
fill = gradientFill;
}
}
else {
fill = colorMap.color;
}
}
if (((colorValue >= colorMap.from && colorValue <= colorMap.to) || (colorMap.value === equalValue))
&& (!isNullOrUndefined(colorMap.minOpacity) && !isNullOrUndefined(colorMap.maxOpacity) && fill)) {
opacity = this.deSaturationColor(colorMap, fill, colorValue, equalValue);
}
if ((fill === '' || isNullOrUndefined(fill)) && isNullOrUndefined(colorMap.from) && isNullOrUndefined(colorMap.to)
&& isNullOrUndefined(colorMap.minOpacity) && isNullOrUndefined(colorMap.maxOpacity) && isNullOrUndefined(colorMap.value)) {
fill = Object.prototype.toString.call(colorMap.color) === '[object Array]' ? colorMap.color[0] : colorMap.color;
}
}
return { fill: fill || ((!colorMapping.length) ? equalValue : null), opacity: opacity };
};
ColorMapping.prototype.deSaturationColor = function (colorMapping, color, rangeValue, equalValue) {
var opacity = 1;
if (((rangeValue >= colorMapping.from && rangeValue <= colorMapping.to) || colorMapping.value === equalValue)) {
var ratio = !isNaN(rangeValue) ? (rangeValue - colorMapping.from) / (colorMapping.to - colorMapping.from) :
colorMapping.from / (colorMapping.to - colorMapping.from);
opacity = (ratio * (colorMapping.maxOpacity - colorMapping.minOpacity)) + colorMapping.minOpacity;
}
return opacity;
};
ColorMapping.prototype.rgbToHex = function (r, g, b) {
return '#' + this.componentToHex(r) + this.componentToHex(g) + this.componentToHex(b);
};
ColorMapping.prototype.componentToHex = function (value) {
var hex = value.toString(16);
return hex.length === 1 ? '0' + hex : hex;
};
ColorMapping.prototype.getColor = function (colorMap, value) {
var color = '';
var rbg;
if (Number(value) === colorMap.from) {
color = colorMap.color[0];
}
else if (Number(value) === colorMap.to) {
color = colorMap.color[colorMap.color.length - 1];
}
else {
rbg = this.getGradientColor(Number(value), colorMap);
color = this.rgbToHex(rbg.r, rbg.g, rbg.b);
}
return color;
};
ColorMapping.prototype.getGradientColor = function (value, colorMap) {
var previousOffset = colorMap.from;
var nextOffset = colorMap.to;
var percent = 0;
var full = nextOffset - previousOffset;
var midColor;
percent = (value - previousOffset) / full;
var previousColor;
var nextColor;
if (colorMap.color.length <= 2) {
previousColor = colorMap.color[0].charAt(0) === '#' ? colorMap.color[0] : this._colorNameToHex(colorMap.color[0]);
nextColor = colorMap.color[colorMap.color.length - 1].charAt(0) === '#' ?
colorMap.color[colorMap.color.length - 1] : this._colorNameToHex(colorMap.color[colorMap.color.length - 1]);
}
else {
previousColor = colorMap.color[0].charAt(0) === '#' ? colorMap.color[0] : this._colorNameToHex(colorMap.color[0]);
nextColor = colorMap.color[colorMap.color.length - 1].charAt(0) === '#' ?
colorMap.color[colorMap.color.length - 1] : this._colorNameToHex(colorMap.color[colorMap.color.length - 1]);
var a = full / (colorMap.color.length - 1);
var b = void 0;
var c = void 0;
var length_1 = colorMap.color.length - 1;
// eslint-disable-next-line @typescript-eslint/no-explicit-any
var splitColorValueOffset = [];
var splitColor = {};
for (var j = 1; j < length_1; j++) {
c = j * a;
b = previousOffset + c;
splitColor = { b: b, color: colorMap.color[j] };
splitColorValueOffset.push(splitColor);
}
for (var i = 0; i < splitColorValueOffset.length; i++) {
if (previousOffset <= value && value <= splitColorValueOffset[i]['b'] && i === 0) {
midColor = splitColorValueOffset[i]['color'].charAt(0) === '#' ?
splitColorValueOffset[i]['color'] : this._colorNameToHex(splitColorValueOffset[i]['color']);
nextColor = midColor;
percent = value < splitColorValueOffset[i]['b'] ? 1 - Math.abs((value - splitColorValueOffset[i]['b']) / a)
: (value - splitColorValueOffset[i]['b']) / a;
}
else if (splitColorValueOffset[i]['b'] <= value && value <= nextOffset && i === (splitColorValueOffset.length - 1)) {
midColor = splitColorValueOffset[i]['color'].charAt(0) === '#' ?
splitColorValueOffset[i]['color'] : this._colorNameToHex(splitColorValueOffset[i]['color']);
previousColor = midColor;
percent = value < splitColorValueOffset[i]['b'] ?
1 - Math.abs((value - splitColorValueOffset[i]['b']) / a) : (value - splitColorValueOffset[i]['b']) / a;
}
if (i !== splitColorValueOffset.length - 1 && i < splitColorValueOffset.length) {
if (splitColorValueOffset[i]['b'] <= value && value <= splitColorValueOffset[i + 1]['b']) {
midColor = splitColorValueOffset[i]['color'].charAt(0) === '#' ?
splitColorValueOffset[i]['color'] : this._colorNameToHex(splitColorValueOffset[i]['color']);
previousColor = midColor;
nextColor = splitColorValueOffset[i + 1]['color'].charAt(0) === '#' ?
splitColorValueOffset[i + 1]['color'] : this._colorNameToHex(splitColorValueOffset[i + 1]['color']);
percent = Math.abs((value - splitColorValueOffset[i + 1]['b'])) / a;
}
}
}
}
return this.getPercentageColor(percent, previousColor, nextColor);
};
ColorMapping.prototype.getPercentageColor = function (percent, previous, next) {
var nextColor = next.split('#')[1];
var prevColor = previous.split('#')[1];
var r = this.getPercentage(percent, parseInt(prevColor.substr(0, 2), 16), parseInt(nextColor.substr(0, 2), 16));
var g = this.getPercentage(percent, parseInt(prevColor.substr(2, 2), 16), parseInt(nextColor.substr(2, 2), 16));
var b = this.getPercentage(percent, parseInt(prevColor.substr(4, 2), 16), parseInt(nextColor.substr(4, 2), 16));
return new ColorValue(r, g, b);
};
ColorMapping.prototype.getPercentage = function (percent, previous, next) {
var full = next - previous;
return Math.round((previous + (full * percent)));
};
ColorMapping.prototype._colorNameToHex = function (color) {
// eslint-disable-next-line @typescript-eslint/no-explicit-any
var colors = {
'aliceblue': '#f0f8ff', 'antiquewhite': '#faebd7', 'aqua': '#00ffff', 'aquamarine': '#7fffd4', 'azure': '#f0ffff',
'beige': '#f5f5dc', 'bisque': '#ffe4c4', 'black': '#000000', 'blanchedalmond': '#ffebcd', 'blue': '#0000ff',
'blueviolet': '#8a2be2', 'brown': '#a52a2a', 'burlywood': '#deb887',
'cadetblue': '#5f9ea0', 'chartreuse': '#7fff00', 'chocolate': '#d2691e', 'coral': '#ff7f50',
'cornflowerblue': '#6495ed', 'cornsilk': '#fff8dc', 'crimson': '#dc143c', 'cyan': '#00ffff',
'darkblue': '#00008b', 'darkcyan': '#008b8b', 'darkgoldenrod': '#b8860b', 'darkgray': '#a9a9a9', 'darkgreen': '#006400',
'darkkhaki': '#bdb76b', 'darkmagenta': '#8b008b', 'darkolivegreen': '#556b2f',
'darkorange': '#ff8c00', 'darkorchid': '#9932cc', 'darkred': '#8b0000', 'darksalmon': '#e9967a', 'darkseagreen': '#8fbc8f',
'darkslateblue': '#483d8b', 'darkslategray': '#2f4f4f', 'darkturquoise': '#00ced1',
'darkviolet': '#9400d3', 'deeppink': '#ff1493', 'deepskyblue': '#00bfff', 'dimgray': '#696969', 'dodgerblue': '#1e90ff',
'firebrick': '#b22222', 'floralwhite': '#fffaf0', 'forestgreen': '#228b22', 'fuchsia': '#ff00ff',
'gainsboro': '#dcdcdc', 'ghostwhite': '#f8f8ff', 'gold': '#ffd700', 'goldenrod': '#daa520', 'gray': '#808080',
'green': '#008000', 'greenyellow': '#adff2f',
'honeydew': '#f0fff0', 'hotpink': '#ff69b4',
'indianred ': '#cd5c5c', 'indigo ': '#4b0082', 'ivory': '#fffff0', 'khaki': '#f0e68c',
'lavender': '#e6e6fa', 'lavenderblush': '#fff0f5', 'lawngreen': '#7cfc00', 'lemonchiffon': '#fffacd', 'lightblue': '#add8e6',
'lightcoral': '#f08080', 'lightcyan': '#e0ffff', 'lightgoldenrodyellow': '#fafad2',
'lightgrey': '#d3d3d3', 'lightgreen': '#90ee90', 'lightpink': '#ffb6c1', 'lightsalmon': '#ffa07a', 'lightseagreen': '#20b2aa',
'lightskyblue': '#87cefa', 'lightslategray': '#778899', 'lightsteelblue': '#b0c4de',
'lightyellow': '#ffffe0', 'lime': '#00ff00', 'limegreen': '#32cd32', 'linen': '#faf0e6',
'magenta': '#ff00ff', 'maroon': '#800000', 'mediumaquamarine': '#66cdaa', 'mediumblue': '#0000cd', 'mediumorchid': '#ba55d3',
'mediumpurple': '#9370d8', 'mediumseagreen': '#3cb371', 'mediumslateblue': '#7b68ee',
'mediumspringgreen': '#00fa9a', 'mediumturquoise': '#48d1cc', 'mediumvioletred': '#c71585', 'midnightblue': '#191970',
'mintcream': '#f5fffa', 'mistyrose': '#ffe4e1', 'moccasin': '#ffe4b5',
'navajowhite': '#ffdead', 'navy': '#000080', 'orchid': '#da70d6', 'papayawhip': '#ffefd5',
'oldlace': '#fdf5e6', 'olive': '#808000', 'olivedrab': '#6b8e23', 'orange': '#ffa500', 'orangered': '#ff4500',
'palegoldenrod': '#eee8aa', 'palegreen': '#98fb98', 'paleturquoise': '#afeeee', 'palevioletred': '#d87093',
'peachpuff': '#ffdab9', 'peru': '#cd853f', 'pink': '#ffc0cb', 'plum': '#dda0dd', 'powderblue': '#b0e0e6', 'purple': '#800080',
'red': '#ff0000', 'rosybrown': '#bc8f8f', 'royalblue': '#4169e1',
'saddlebrown': '#8b4513', 'salmon': '#fa8072', 'sandybrown': '#f4a460', 'seagreen': '#2e8b57', 'seashell': '#fff5ee',
'sienna': '#a0522d', 'silver': '#c0c0c0', 'skyblue': '#87ceeb', 'slateblue': '#6a5acd',
'slategray': '#708090', 'snow': '#fffafa', 'springgreen': '#00ff7f', 'steelblue': '#4682b4',
'tan': '#d2b48c', 'teal': '#008080', 'thistle': '#d8bfd8', 'tomato': '#ff6347', 'turquoise': '#40e0d0',
'violet': '#ee82ee',
'wheat': '#f5deb3', 'white': '#ffffff', 'whitesmoke': '#f5f5f5',
'yellow': '#ffff00', 'yellowgreen': '#9acd32'
};
if (Object.prototype.toString.call(color) === '[object Array]') {
return color;
}
if (typeof colors[color.toLowerCase()] !== 'undefined') {
return colors[color.toLowerCase()];
}
return color;
};
return ColorMapping;
}());
export { ColorMapping };