kepler.gl
Version:
kepler.gl is a webgl based application to visualize large scale location data in the browser
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JavaScript
"use strict";
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.addCustomPaletteColor = addCustomPaletteColor;
exports.addNewQuantativeColorBreakAtIndex = addNewQuantativeColorBreakAtIndex;
exports.colorMaybeToHex = colorMaybeToHex;
exports.colorMaybeToRGB = colorMaybeToRGB;
exports.colorRangeBackwardCompatibility = colorRangeBackwardCompatibility;
exports.createLinearGradient = createLinearGradient;
exports.hasColorMap = hasColorMap;
exports.hexToRgb = hexToRgb;
exports.initializeCustomPalette = initializeCustomPalette;
exports.interpolateHex = interpolateHex;
exports.isHexColor = isHexColor;
exports.isQuaPalette = isQuaPalette;
exports.isRgbColor = isRgbColor;
exports.normalizeColor = normalizeColor;
exports.paletteIsColorBlindSafe = paletteIsColorBlindSafe;
exports.paletteIsSteps = paletteIsSteps;
exports.paletteIsType = paletteIsType;
exports.removeCustomPaletteColor = removeCustomPaletteColor;
exports.reverseColorRange = reverseColorRange;
exports.rgbToHex = rgbToHex;
exports.sortCustomPaletteColor = sortCustomPaletteColor;
exports.updateColorRangeByMatchingPalette = updateColorRangeByMatchingPalette;
exports.updateColorRangeBySelectedPalette = updateColorRangeBySelectedPalette;
exports.updateCustomColorRangeByColorUI = updateCustomColorRangeByColorUI;
exports.updateCustomPaletteColor = updateCustomPaletteColor;
var _objectWithoutProperties2 = _interopRequireDefault(require("@babel/runtime/helpers/objectWithoutProperties"));
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
var _toConsumableArray2 = _interopRequireDefault(require("@babel/runtime/helpers/toConsumableArray"));
var _slicedToArray2 = _interopRequireDefault(require("@babel/runtime/helpers/slicedToArray"));
var _constants = require("@kepler.gl/constants");
var _commonUtils = require("@kepler.gl/common-utils");
var _d3Color = require("d3-color");
var _d3Interpolate = require("d3-interpolate");
var _utils = require("./utils");
var _console = _interopRequireDefault(require("global/console"));
var _excluded = ["colors"];
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { (0, _defineProperty2["default"])(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; } // SPDX-License-Identifier: MIT
// Copyright contributors to the kepler.gl project
/**
* get r g b from hex code
*
* @param hex
* @returns array of r g bs
*/
function hexToRgb(hex) {
var result = isHexColor(hex);
if (!result) {
return [0, 0, 0];
}
var r = parseInt(result[1], 16);
var g = parseInt(result[2], 16);
var b = parseInt(result[3], 16);
return [r, g, b];
}
function isHexColor(hex) {
var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
return result;
}
function PadNum(c) {
var hex = c.toString(16);
return hex.length === 1 ? "0".concat(hex) : hex;
}
/**
* get hex from r g b
*
* @param rgb
* @returns hex string
*/
function rgbToHex(_ref) {
var _ref2 = (0, _slicedToArray2["default"])(_ref, 3),
r = _ref2[0],
g = _ref2[1],
b = _ref2[2];
return "#".concat([r, g, b].map(function (n) {
return PadNum(n);
}).join('')).toUpperCase();
}
/**
* Whether color range has custom color map
*/
function hasColorMap(colorRange) {
return Array.isArray(colorRange.colorMap) && Boolean(colorRange.colorMap.length);
}
/**
* given a list of rgb arrays it will generate a linear gradient css rule
* @param direction
* @param colors
* @return
*/
function createLinearGradient(direction, colors) {
var step = parseFloat((100.0 / colors.length).toFixed(2));
var bands = colors.map(function (rgb, index) {
return "rgba(".concat(rgb.join(','), ", 1) ").concat(step * index, "%, rgba(").concat(rgb.join(','), ", 1) ").concat(step * (index + 1), "%");
});
return "linear-gradient(to ".concat(direction, ", ").concat(bands.join(','), ")");
}
/**
* Convert color to RGB
*/
function colorMaybeToRGB(color) {
if (isRgbColor(color)) {
return color;
}
if (typeof color === 'string') {
var rgbObj = (0, _d3Color.rgb)(color);
if (Number.isFinite(rgbObj === null || rgbObj === void 0 ? void 0 : rgbObj.r) && Number.isFinite(rgbObj === null || rgbObj === void 0 ? void 0 : rgbObj.g) && Number.isFinite(rgbObj === null || rgbObj === void 0 ? void 0 : rgbObj.b)) {
return [rgbObj.r, rgbObj.g, rgbObj.b];
}
}
return null;
}
/**
* Whether color is rgb
* @returns
*/
function isRgbColor(color) {
return Boolean(color && Array.isArray(color) && color.length === 3 && color.every(function (n) {
return Number.isFinite(n) && n <= 255 && n >= 0;
}));
}
/**
* Take color values in 0-255 range and map to [0, 1]
*/
function normalizeColor(color) {
return color.map(function (component) {
return component / 255.0;
});
}
/**
* Convert color to Hex
*/
function colorMaybeToHex(color) {
var rgbColor = colorMaybeToRGB(color);
if (rgbColor) return rgbToHex(rgbColor);
return '#000000';
}
/**
* Convert color to Hex
*/
function interpolateHex(hex1, hex2) {
return (0, _d3Color.rgb)((0, _d3Interpolate.interpolate)(hex1, hex2)(0.5)).hex().toUpperCase();
}
function addNewCategoricalStepAtIndex(colorMap, index, newColor) {
if (!Array.isArray(colorMap) || !colorMap.length) {
return colorMap;
}
var newColorMap = colorMap.map(function (_ref3) {
var _ref4 = (0, _slicedToArray2["default"])(_ref3, 2),
val = _ref4[0],
c = _ref4[1];
return [Array.isArray(val) ? (0, _toConsumableArray2["default"])(val) : val, c];
});
newColorMap = (0, _utils.arrayInsert)(newColorMap, index + 1, [null, newColor]);
return newColorMap;
}
function addNewQuantativeColorBreakAtIndex(colorMap, index, newColors) {
if (!Array.isArray(colorMap) || !colorMap.length) {
return colorMap;
}
if (colorMap.length < 2) {
// less then 2, add 1 at end
// however shouldn't allow delete when there are 2
return newColors.map(function (c, i) {
return i === 0 ? colorMap[i] : [null, c];
});
}
// breaks should be 1 less than colors
var breaks = colorMap.map(function (cm) {
return cm[0];
}).slice(0, colorMap.length - 1);
// insert new break
var newValue = index >= breaks.length - 1 ? breaks[breaks.length - 1] + (breaks.length > 1 ? breaks[breaks.length - 1] - breaks[breaks.length - 2] : 0) : (breaks[index] + breaks[index + 1]) / 2;
var newBreaks = (0, _utils.arrayInsert)(breaks, index + 1, newValue);
// asign breaks to color
return newColors.map(function (c, i) {
return i === newColors.length - 1 ? [null, c] : [newBreaks[i] === undefined ? null : newBreaks[i], c];
});
}
/**
* Add a new color to custom palette
*/
function addCustomPaletteColor(customPalette, index) {
var colors = customPalette.colors,
colorMap = customPalette.colorMap;
var update = {};
var newColor = index === colors.length - 1 ? colors[index] : interpolateHex(colors[index], colors[index + 1]);
update.colors = (0, _utils.arrayInsert)(colors, index + 1, newColor);
// add color to colorMap
if (colorMap) {
update.colorMap = customPalette.type === 'customOrdinal' ? addNewCategoricalStepAtIndex(colorMap, index, newColor) : addNewQuantativeColorBreakAtIndex(colorMap, index, update.colors);
}
return _objectSpread(_objectSpread({}, customPalette), update);
}
function replaceColorsInColorRange(colorRange, newColors) {
var oldColors = colorRange.colors;
var updated = _objectSpread(_objectSpread({}, colorRange), {}, {
colors: newColors
});
// update color map
// keep value, replace color
if (Array.isArray(updated.colorMap)) {
updated.colorMap = updated.colorMap.map(function (cm, i) {
return [cm[0], newColors[i]];
});
}
// update colorlegends
// keep value, replace color
if (updated.colorLegends) {
updated.colorLegends = Object.keys(updated.colorLegends).reduce(function (accu, key) {
var colorIdx = oldColors.findIndex(function (c) {
return c === key;
});
var newColor = newColors[colorIdx];
return newColor ? _objectSpread(_objectSpread({}, accu), {}, (0, _defineProperty2["default"])({}, newColor, updated.colorLegends[key])) : accu;
}, {});
}
return updated;
}
/**
* Sort custom palette
*/
function sortCustomPaletteColor(customPalette, oldIndex, newIndex) {
var colors = customPalette.colors;
var newColors = (0, _commonUtils.arrayMove)(colors, oldIndex, newIndex);
var update = replaceColorsInColorRange(customPalette, newColors);
// @ts-ignore
return _objectSpread(_objectSpread({}, customPalette), update);
}
/**
* remove a color in custom palette at index
*/
function removeCustomPaletteColor(customPalette, index) {
var colors = customPalette.colors,
colorMap = customPalette.colorMap,
colorLegends = customPalette.colorLegends;
var oldValue = colors[index];
var update = {};
update.colors = (0, _toConsumableArray2["default"])(colors);
if (update.colors.length > 1) {
update.colors.splice(index, 1);
}
// update color map
if (Array.isArray(colorMap)) {
// find colorMap index
var colorMapIndex = colorMap.findIndex(function (cm) {
return cm[1] === oldValue;
});
if (colorMapIndex >= 0) {
update.colorMap = (0, _toConsumableArray2["default"])(colorMap);
update.colorMap.splice(colorMapIndex, 1);
}
}
// update color legend
if (colorLegends !== null && colorLegends !== void 0 && colorLegends[oldValue]) {
update.colorLegends = _objectSpread({}, colorLegends);
delete update.colorLegends[oldValue];
}
return _objectSpread(_objectSpread({}, customPalette), update);
}
/**
* Update a color in custom palette at index
*/
function updateCustomPaletteColor(customPalette, index, newValue) {
var colors = customPalette.colors;
var hex = newValue.toUpperCase();
var newColors = (0, _toConsumableArray2["default"])(colors);
newColors[index] = hex;
var update = replaceColorsInColorRange(customPalette, newColors);
// @ts-ignore
return _objectSpread(_objectSpread({}, customPalette), update);
}
/**
* Get a reversed colorRange
*/
function reverseColorRange(reversed, colorRange) {
var newColors = colorRange === null || colorRange === void 0 ? void 0 : colorRange.colors.slice().reverse();
var updated = replaceColorsInColorRange(colorRange, newColors);
updated.reversed = reversed;
return updated;
}
/**
* Whether palette matches current ColorBlindSafe config
*/
function paletteIsColorBlindSafe(palette, colorBlindSafe) {
return !colorBlindSafe || colorBlindSafe && palette.colorBlindSafe;
}
/**
* Whether palette matches current steps config
*/
function isQuaPalette(palette) {
return palette.type === _constants.PALETTE_TYPES.QUA;
}
/**
* Whether palette matches current steps config
*/
function paletteIsSteps(palette, steps) {
return !isQuaPalette(palette) || palette.maxStep >= steps;
}
/**
* Whether palette matches current type config
*/
function paletteIsType(palette, type) {
return type === 'all' || type === palette.type;
}
/**
* Find best match palette based on config, update color range by it
*/
function updateColorRangeByMatchingPalette(currentColorRange, config) {
var steps = config.steps,
colorBlindSafe = config.colorBlindSafe,
type = config.type;
var matchingPalette = _constants.KEPLER_COLOR_PALETTES.filter(function (palette) {
return (
// palette match type
paletteIsType(palette, type) &&
// palette has same step
paletteIsSteps(palette, steps) &&
// palette is colorBlindSafe
paletteIsColorBlindSafe(palette, colorBlindSafe)
);
});
var bestMatch = matchingPalette.length ? matchingPalette.find(function (p) {
return p.name === currentColorRange.name;
}) || matchingPalette[0] : null;
if (bestMatch) {
return updateColorRangeBySelectedPalette(currentColorRange, bestMatch, config);
}
// we do nothing
_console["default"].warn("we cant find any preset palette matches requirments: steps=".concat(steps, " && colorBlindSafe=").concat(colorBlindSafe));
return currentColorRange;
}
/**
* Update custom palette when reverse the colors in custom palette, since changing 'steps',
* 'colorBindSafe', 'type' should fall back to predefined palette.
*/
function updateCustomColorRangeByColorUI(oldColorRange, colorConfig) {
var reversed = colorConfig.reversed;
var colors = oldColorRange.colors;
// for custom palette, one can only 'reverse' the colors in custom palette.
colors.reverse();
var colorRange = _objectSpread(_objectSpread(_objectSpread({
name: oldColorRange.name,
type: oldColorRange.type,
category: oldColorRange.category,
colors: colors
}, reversed ? {
reversed: reversed
} : {}), oldColorRange.colorMap ? {
colorMap: oldColorRange.colorMap
} : {}), oldColorRange.colorLegends ? {
colorLegends: oldColorRange.colorLegends
} : {});
return replaceColorsInColorRange(colorRange, colorRange.colors);
}
/**
* Update color range after selecting a palette from color range selectoer
* Copy over colorMap and colorLegends
*/
function updateColorRangeBySelectedPalette(oldColorRange, colorPalette, colorConfig) {
var _colorPaletteToColorR = (0, _constants.colorPaletteToColorRange)(colorPalette, colorConfig),
newColors = _colorPaletteToColorR.colors,
newColorRange = (0, _objectWithoutProperties2["default"])(_colorPaletteToColorR, _excluded);
var colorRange = _objectSpread(_objectSpread(_objectSpread({
colors: oldColorRange.colors
}, newColorRange), oldColorRange.colorMap ? {
colorMap: oldColorRange.colorMap
} : {}), oldColorRange.colorLegends ? {
colorLegends: oldColorRange.colorLegends
} : {});
return replaceColorsInColorRange(colorRange, newColors);
}
var UberNameRegex = new RegExp(/^([A-Za-z ])+/g);
var ColorBrewerRegex = new RegExp(/^ColorBrewer ([A-Za-z1-9])+/g);
/**
* convert saved colorRange to colorPalette objevt type/name/category/isColorBlind
*/
function colorRangeBackwardCompatibility(colorRange) {
if (!colorRange || colorRange.type === 'custom' || colorRange.colorMap) {
// don't do anything to custom color palette, or palette with custom breaks
return colorRange;
}
var trimName;
if (colorRange.category === 'Uber') {
var _colorRange$name;
var matchName = ((_colorRange$name = colorRange.name) !== null && _colorRange$name !== void 0 ? _colorRange$name : '').match(UberNameRegex);
trimName = matchName ? matchName[0].trim() : null;
// match Uber Viz Qualitative 1.4 -> Uber Viz Qualitative
} else if (colorRange.category === 'ColorBrewer') {
var _colorRange$name2;
var _matchName = ((_colorRange$name2 = colorRange.name) !== null && _colorRange$name2 !== void 0 ? _colorRange$name2 : '').match(ColorBrewerRegex);
trimName = _matchName ? _matchName[0].replace('ColorBrewer ', '').trim() : null;
}
if (trimName) {
var matchingPalette = _constants.KEPLER_COLOR_PALETTES.find(function (p) {
return p.name === trimName;
});
if (matchingPalette) {
return _objectSpread(_objectSpread({}, colorRange), {}, {
name: trimName,
type: matchingPalette === null || matchingPalette === void 0 ? void 0 : matchingPalette.type,
category: matchingPalette.category
});
}
}
return colorRange;
}
/**
* Initialize custom palette from current standard color range object
*/
function initializeCustomPalette(colorRange, colorMap) {
// TODO: check on `isReversed` key, whether we can remove it here
var customPalette = _objectSpread(_objectSpread({}, colorRange), {}, {
name: _constants.DEFAULT_CUSTOM_PALETTE.name,
type: _constants.DEFAULT_CUSTOM_PALETTE.type,
category: _constants.DEFAULT_CUSTOM_PALETTE.category
}, colorMap ? {
colorMap: colorMap
} : {});
// only customPalette.colors are needed for custom palette editor with custom ordinal scale
if (!colorMap && colorRange.type === _constants.SCALE_TYPES.customOrdinal) {
delete customPalette.colorMap;
}
return customPalette;
}
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"names":["_constants","require","_commonUtils","_d3Color","_d3Interpolate","_utils","_console","_interopRequireDefault","_excluded","ownKeys","e","r","t","Object","keys","getOwnPropertySymbols","o","filter","getOwnPropertyDescriptor","enumerable","push","apply","_objectSpread","arguments","length","forEach","_defineProperty2","getOwnPropertyDescriptors","defineProperties","defineProperty","hexToRgb","hex","result","isHexColor","parseInt","g","b","exec","PadNum","c","toString","concat","rgbToHex","_ref","_ref2","_slicedToArray2","map","n","join","toUpperCase","hasColorMap","colorRange","Array","isArray","colorMap","Boolean","createLinearGradient","direction","colors","step","parseFloat","toFixed","bands","rgb","index","colorMaybeToRGB","color","isRgbColor","rgbObj","d3Rgb","Number","isFinite","every","normalizeColor","component","colorMaybeToHex","rgbColor","interpolateHex","hex1","hex2","interpolate","addNewCategoricalStepAtIndex","newColor","newColorMap","_ref3","_ref4","val","_toConsumableArray2","arrayInsert","addNewQuantativeColorBreakAtIndex","newColors","i","breaks","cm","slice","newValue","newBreaks","undefined","addCustomPaletteColor","customPalette","update","type","replaceColorsInColorRange","oldColors","updated","colorLegends","reduce","accu","key","colorIdx","findIndex","sortCustomPaletteColor","oldIndex","newIndex","arrayMove","removeCustomPaletteColor","oldValue","splice","colorMapIndex","updateCustomPaletteColor","reverseColorRange","reversed","reverse","paletteIsColorBlindSafe","palette","colorBlindSafe","isQuaPalette","PALETTE_TYPES","QUA","paletteIsSteps","steps","maxStep","paletteIsType","updateColorRangeByMatchingPalette","currentColorRange","config","matchingPalette","KEPLER_COLOR_PALETTES","bestMatch","find","p","name","updateColorRangeBySelectedPalette","Console","warn","updateCustomColorRangeByColorUI","oldColorRange","colorConfig","category","colorPalette","_colorPaletteToColorR","colorPaletteToColorRange","newColorRange","_objectWithoutProperties2","UberNameRegex","RegExp","ColorBrewerRegex","colorRangeBackwardCompatibility","trimName","_colorRange$name","matchName","match","trim","_colorRange$name2","replace","initializeCustomPalette","DEFAULT_CUSTOM_PALETTE","SCALE_TYPES","customOrdinal"],"sources":["../src/color-utils.ts"],"sourcesContent":["// SPDX-License-Identifier: MIT\n// Copyright contributors to the kepler.gl project\n\nimport {\n  CategoricalPalette,\n  ColorPalette,\n  DEFAULT_CUSTOM_PALETTE,\n  colorPaletteToColorRange\n} from '@kepler.gl/constants';\nimport {arrayMove} from '@kepler.gl/common-utils';\nimport {\n  ColorMap,\n  ColorRange,\n  ColorRangeConfig,\n  HexColor,\n  RGBAColor,\n  RGBColor\n} from '@kepler.gl/types';\nimport {rgb as d3Rgb} from 'd3-color';\nimport {interpolate} from 'd3-interpolate';\nimport {arrayInsert} from './utils';\nimport Console from 'global/console';\nimport {KEPLER_COLOR_PALETTES, PALETTE_TYPES, SCALE_TYPES} from '@kepler.gl/constants';\n\n/**\n * get r g b from hex code\n *\n * @param hex\n * @returns array of r g bs\n */\nexport function hexToRgb(hex: string): RGBColor {\n  const result = isHexColor(hex);\n\n  if (!result) {\n    return [0, 0, 0];\n  }\n\n  const r = parseInt(result[1], 16);\n  const g = parseInt(result[2], 16);\n  const b = parseInt(result[3], 16);\n\n  return [r, g, b];\n}\n\nexport function isHexColor(hex: string): RegExpExecArray | null {\n  const result = /^#?([a-f\\d]{2})([a-f\\d]{2})([a-f\\d]{2})$/i.exec(hex);\n\n  return result;\n}\n\nfunction PadNum(c) {\n  const hex = c.toString(16);\n  return hex.length === 1 ? `0${hex}` : hex;\n}\n\n/**\n * get hex from r g b\n *\n * @param rgb\n * @returns hex string\n */\nexport function rgbToHex([r, g, b]: RGBColor | RGBAColor): HexColor {\n  return `#${[r, g, b].map(n => PadNum(n)).join('')}`.toUpperCase();\n}\n\n/**\n * Whether color range has custom color map\n */\nexport function hasColorMap(colorRange: ColorRange): boolean {\n  return Array.isArray(colorRange.colorMap) && Boolean(colorRange.colorMap.length);\n}\n\n/**\n * given a list of rgb arrays it will generate a linear gradient css rule\n * @param direction\n * @param colors\n * @return\n */\nexport function createLinearGradient(direction: string, colors: RGBColor[]): string {\n  const step = parseFloat((100.0 / colors.length).toFixed(2));\n  const bands = colors.map((rgb, index) => {\n    return `rgba(${rgb.join(',')}, 1) ${step * index}%, rgba(${rgb.join(',')}, 1) ${\n      step * (index + 1)\n    }%`;\n  });\n\n  return `linear-gradient(to ${direction}, ${bands.join(',')})`;\n}\n\n/**\n * Convert color to RGB\n */\nexport function colorMaybeToRGB(color: unknown): RGBColor | null {\n  if (isRgbColor(color)) {\n    return color as RGBColor;\n  }\n\n  if (typeof color === 'string') {\n    const rgbObj = d3Rgb(color);\n    if (Number.isFinite(rgbObj?.r) && Number.isFinite(rgbObj?.g) && Number.isFinite(rgbObj?.b)) {\n      return [rgbObj.r, rgbObj.g, rgbObj.b];\n    }\n  }\n\n  return null;\n}\n\n/**\n * Whether color is rgb\n * @returns\n */\nexport function isRgbColor(color: unknown): boolean {\n  return Boolean(\n    color &&\n      Array.isArray(color) &&\n      color.length === 3 &&\n      color.every(n => Number.isFinite(n) && n <= 255 && n >= 0)\n  );\n}\n\n/**\n * Take color values in 0-255 range and map to [0, 1]\n */\nexport function normalizeColor(color: number[]): number[] {\n  return color.map(component => component / 255.0);\n}\n\n/**\n * Convert color to Hex\n */\nexport function colorMaybeToHex(color: unknown): HexColor {\n  const rgbColor = colorMaybeToRGB(color);\n  if (rgbColor) return rgbToHex(rgbColor);\n  return '#000000';\n}\n\n/**\n * Convert color to Hex\n */\n\nexport function interpolateHex(hex1: HexColor, hex2: HexColor): HexColor {\n  return d3Rgb(interpolate(hex1, hex2)(0.5)).hex().toUpperCase();\n}\n\nfunction addNewCategoricalStepAtIndex(colorMap, index, newColor) {\n  if (!Array.isArray(colorMap) || !colorMap.length) {\n    return colorMap;\n  }\n\n  let newColorMap = colorMap.map(([val, c]) => [Array.isArray(val) ? [...val] : val, c]);\n  newColorMap = arrayInsert(newColorMap, index + 1, [null, newColor]);\n\n  return newColorMap;\n}\n\nexport function addNewQuantativeColorBreakAtIndex(colorMap, index, newColors) {\n  if (!Array.isArray(colorMap) || !colorMap.length) {\n    return colorMap;\n  }\n\n  if (colorMap.length < 2) {\n    // less then 2, add 1 at end\n    // however shouldn't allow delete when there are 2\n    return newColors.map((c, i) => (i === 0 ? colorMap[i] : [null, c]));\n  }\n\n  // breaks should be 1 less than colors\n  const breaks = colorMap.map(cm => cm[0]).slice(0, colorMap.length - 1);\n\n  // insert new break\n  const newValue =\n    index >= breaks.length - 1\n      ? breaks[breaks.length - 1] +\n        (breaks.length > 1 ? breaks[breaks.length - 1] - breaks[breaks.length - 2] : 0)\n      : (breaks[index] + breaks[index + 1]) / 2;\n\n  const newBreaks = arrayInsert(breaks, index + 1, newValue);\n\n  // asign breaks to color\n  return newColors.map((c, i) =>\n    i === newColors.length - 1 ? [null, c] : [newBreaks[i] === undefined ? null : newBreaks[i], c]\n  );\n}\n\n/**\n * Add a new color to custom palette\n */\nexport function addCustomPaletteColor(customPalette: ColorRange, index: number): ColorRange {\n  const {colors, colorMap} = customPalette;\n  const update: Partial<ColorRange> = {};\n\n  const newColor =\n    index === colors.length - 1 ? colors[index] : interpolateHex(colors[index], colors[index + 1]);\n\n  update.colors = arrayInsert(colors, index + 1, newColor);\n\n  // add color to colorMap\n  if (colorMap) {\n    update.colorMap =\n      customPalette.type === 'customOrdinal'\n        ? addNewCategoricalStepAtIndex(colorMap, index, newColor)\n        : addNewQuantativeColorBreakAtIndex(colorMap, index, update.colors);\n  }\n\n  return {\n    ...customPalette,\n    ...update\n  };\n}\n\nfunction replaceColorsInColorRange(colorRange, newColors) {\n  const oldColors = colorRange.colors;\n  const updated = {\n    ...colorRange,\n    colors: newColors\n  };\n\n  // update color map\n  // keep value, replace color\n  if (Array.isArray(updated.colorMap)) {\n    updated.colorMap = updated.colorMap.map((cm, i) => [cm[0], newColors[i]]);\n  }\n  // update colorlegends\n  // keep value, replace color\n  if (updated.colorLegends) {\n    updated.colorLegends = Object.keys(updated.colorLegends).reduce((accu, key) => {\n      const colorIdx = oldColors.findIndex(c => c === key);\n      const newColor = newColors[colorIdx];\n\n      return newColor\n        ? {\n            ...accu,\n            [newColor]: updated.colorLegends[key]\n          }\n        : accu;\n    }, {});\n  }\n\n  return updated;\n}\n\n/**\n * Sort custom palette\n */\nexport function sortCustomPaletteColor(\n  customPalette: ColorRange,\n  oldIndex: number,\n  newIndex: number\n): ColorRange {\n  const {colors} = customPalette;\n\n  const newColors = arrayMove(colors, oldIndex, newIndex);\n  const update = replaceColorsInColorRange(customPalette, newColors);\n\n  // @ts-ignore\n  return {\n    ...customPalette,\n    ...update\n  };\n}\n\n/**\n * remove a color in custom palette at index\n */\nexport function removeCustomPaletteColor(customPalette: ColorRange, index: number): ColorRange {\n  const {colors, colorMap, colorLegends} = customPalette;\n  const oldValue = colors[index];\n  const update: Partial<ColorRange> = {};\n  update.colors = [...colors];\n\n  if (update.colors.length > 1) {\n    update.colors.splice(index, 1);\n  }\n  // update color map\n  if (Array.isArray(colorMap)) {\n    // find colorMap index\n    const colorMapIndex = colorMap.findIndex(cm => cm[1] === oldValue);\n    if (colorMapIndex >= 0) {\n      update.colorMap = [...colorMap];\n      update.colorMap.splice(colorMapIndex, 1);\n    }\n  }\n  // update color legend\n  if (colorLegends?.[oldValue]) {\n    update.colorLegends = {...colorLegends};\n    delete update.colorLegends[oldValue];\n  }\n\n  return {\n    ...customPalette,\n    ...update\n  };\n}\n\n/**\n * Update a color in custom palette at index\n */\nexport function updateCustomPaletteColor(\n  customPalette: ColorRange,\n  index: number,\n  newValue: HexColor\n): ColorRange {\n  const {colors} = customPalette;\n  const hex = newValue.toUpperCase();\n  const newColors = [...colors];\n  newColors[index] = hex;\n\n  const update = replaceColorsInColorRange(customPalette, newColors);\n\n  // @ts-ignore\n  return {\n    ...customPalette,\n    ...update\n  };\n}\n\n/**\n * Get a reversed colorRange\n */\nexport function reverseColorRange(reversed: boolean, colorRange: ColorRange): ColorRange {\n  const newColors = colorRange?.colors.slice().reverse();\n  const updated = replaceColorsInColorRange(colorRange, newColors);\n  updated.reversed = reversed;\n\n  return updated;\n}\n\n/**\n * Whether palette matches current ColorBlindSafe config\n */\nexport function paletteIsColorBlindSafe(palette: ColorPalette, colorBlindSafe: boolean) {\n  return !colorBlindSafe || (colorBlindSafe && palette.colorBlindSafe);\n}\n\n/**\n * Whether palette matches current steps config\n */\nexport function isQuaPalette(palette: ColorPalette): palette is CategoricalPalette {\n  return palette.type === PALETTE_TYPES.QUA;\n}\n\n/**\n * Whether palette matches current steps config\n */\nexport function paletteIsSteps(palette: ColorPalette, steps: number): boolean {\n  return !isQuaPalette(palette) || palette.maxStep >= steps;\n}\n\n/**\n * Whether palette matches current type config\n */\nexport function paletteIsType(palette: ColorPalette, type: string): boolean {\n  return type === 'all' || type === palette.type;\n}\n/**\n * Find best match palette based on config, update color range by it\n */\nexport function updateColorRangeByMatchingPalette(\n  currentColorRange: ColorRange,\n  config: ColorRangeConfig\n): ColorRange {\n  const {steps, colorBlindSafe, type} = config;\n\n  const matchingPalette = KEPLER_COLOR_PALETTES.filter(\n    palette =>\n      // palette match type\n      paletteIsType(palette, type) &&\n      // palette has same step\n      paletteIsSteps(palette, steps) &&\n      // palette is colorBlindSafe\n      paletteIsColorBlindSafe(palette, colorBlindSafe)\n  );\n\n  const bestMatch = matchingPalette.length\n    ? matchingPalette.find(p => p.name === currentColorRange.name) || matchingPalette[0]\n    : null;\n\n  if (bestMatch) {\n    return updateColorRangeBySelectedPalette(currentColorRange, bestMatch, config);\n  }\n  // we do nothing\n  Console.warn(\n    `we cant find any preset palette matches requirments: steps=${steps} && colorBlindSafe=${colorBlindSafe}`\n  );\n\n  return currentColorRange;\n}\n\n/**\n * Update custom palette when reverse the colors in custom palette, since changing 'steps',\n * 'colorBindSafe', 'type' should fall back to predefined palette.\n */\nexport function updateCustomColorRangeByColorUI(\n  oldColorRange: ColorRange,\n  colorConfig: ColorRangeConfig\n): ColorRange {\n  const {reversed} = colorConfig;\n  const colors = oldColorRange.colors;\n  // for custom palette, one can only 'reverse' the colors in custom palette.\n  colors.reverse();\n\n  const colorRange = {\n    name: oldColorRange.name,\n    type: oldColorRange.type,\n    category: oldColorRange.category,\n    colors,\n    ...(reversed ? {reversed} : {}),\n    ...(oldColorRange.colorMap ? {colorMap: oldColorRange.colorMap} : {}),\n    ...(oldColorRange.colorLegends ? {colorLegends: oldColorRange.colorLegends} : {})\n  };\n\n  return replaceColorsInColorRange(colorRange, colorRange.colors);\n}\n\n/**\n * Update color range after selecting a palette from color range selectoer\n * Copy over colorMap and colorLegends\n */\nexport function updateColorRangeBySelectedPalette(oldColorRange, colorPalette, colorConfig) {\n  const {colors: newColors, ...newColorRange} = colorPaletteToColorRange(colorPalette, colorConfig);\n\n  const colorRange = {\n    colors: oldColorRange.colors,\n    ...newColorRange,\n    ...(oldColorRange.colorMap ? {colorMap: oldColorRange.colorMap} : {}),\n    ...(oldColorRange.colorLegends ? {colorLegends: oldColorRange.colorLegends} : {})\n  };\n\n  return replaceColorsInColorRange(colorRange, newColors);\n}\n\nconst UberNameRegex = new RegExp(/^([A-Za-z ])+/g);\nconst ColorBrewerRegex = new RegExp(/^ColorBrewer ([A-Za-z1-9])+/g);\n\n/**\n * convert saved colorRange to colorPalette objevt type/name/category/isColorBlind\n */\nexport function colorRangeBackwardCompatibility(colorRange: ColorRange): ColorRange {\n  if (!colorRange || colorRange.type === 'custom' || colorRange.colorMap) {\n    // don't do anything to custom color palette, or palette with custom breaks\n    return colorRange;\n  }\n  let trimName;\n  if (colorRange.category === 'Uber') {\n    const matchName = (colorRange.name ?? '').match(UberNameRegex);\n    trimName = matchName ? matchName[0].trim() : null;\n    // match Uber Viz Qualitative 1.4 -> Uber Viz Qualitative\n  } else if (colorRange.category === 'ColorBrewer') {\n    const matchName = (colorRange.name ?? '').match(ColorBrewerRegex);\n    trimName = matchName ? matchName[0].replace('ColorBrewer ', '').trim() : null;\n  }\n\n  if (trimName) {\n    const matchingPalette = KEPLER_COLOR_PALETTES.find(p => p.name === trimName);\n    if (matchingPalette) {\n      return {\n        ...colorRange,\n        name: trimName,\n        type: matchingPalette?.type,\n        category: matchingPalette.category\n      };\n    }\n  }\n\n  return colorRange;\n}\n\n/**\n * Initialize custom palette from current standard color range object\n */\nexport function initializeCustomPalette(colorRange: ColorRange, colorMap?: ColorMap): ColorRange {\n  // TODO: check on `isReversed` key, whether we can remove it here\n  const customPalette = {\n    ...colorRange,\n    name: DEFAULT_CUSTOM_PALETTE.name,\n    type: DEFAULT_CUSTOM_PALETTE.type,\n    category: DEFAULT_CUSTOM_PALETTE.category,\n    ...(colorMap ? {colorMap} : {})\n  };\n\n  // only customPalette.colors are needed for custom palette editor with custom ordinal scale\n  if (!colorMap && colorRange.type === SCALE_TYPES.customOrdinal) {\n    delete customPalette.colorMap;\n  }\n  return 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