kepler.gl.geoiq
Version:
kepler.gl is a webgl based application to visualize large scale location data in the browser
300 lines (257 loc) • 32.3 kB
JavaScript
"use strict";
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.pointPosResolver = exports.pointPosAccessor = exports.getValueAggr = exports["default"] = exports.aggregateRequiredColumns = void 0;
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
var _toConsumableArray2 = _interopRequireDefault(require("@babel/runtime/helpers/toConsumableArray"));
var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
var _get2 = _interopRequireDefault(require("@babel/runtime/helpers/get"));
var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
var _possibleConstructorReturn2 = _interopRequireDefault(require("@babel/runtime/helpers/possibleConstructorReturn"));
var _getPrototypeOf2 = _interopRequireDefault(require("@babel/runtime/helpers/getPrototypeOf"));
var _lodash = _interopRequireDefault(require("lodash.memoize"));
var _baseLayer = _interopRequireDefault(require("./base-layer"));
var _colorUtils = require("../utils/color-utils");
var _aggregateUtils = require("../utils/aggregate-utils");
var _defaultSettings = require("../constants/default-settings");
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; }
function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }
function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
var pointPosAccessor = exports.pointPosAccessor = function pointPosAccessor(_ref) {
var lat = _ref.lat,
lng = _ref.lng;
return function (d) {
return [d[lng.fieldIdx], d[lat.fieldIdx]];
};
};
var pointPosResolver = exports.pointPosResolver = function pointPosResolver(_ref2) {
var lat = _ref2.lat,
lng = _ref2.lng;
return "".concat(lat.fieldIdx, "-").concat(lng.fieldIdx);
};
var getValueAggr = exports.getValueAggr = function getValueAggr(field, aggregation) {
return function (points) {
return (0, _aggregateUtils.aggregate)(points.map(function (p) {
return p[field.tableFieldIndex - 1];
}), aggregation);
};
};
var aggrResolver = function aggrResolver(field, aggregation) {
return "".concat(field.name, "-").concat(aggregation);
};
var getLayerColorRange = function getLayerColorRange(colorRange) {
return colorRange.colors.map(_colorUtils.hexToRgb);
};
var aggregateRequiredColumns = exports.aggregateRequiredColumns = ['lat', 'lng'];
var AggregationLayer = exports["default"] = /*#__PURE__*/function (_Layer) {
(0, _inherits2["default"])(AggregationLayer, _Layer);
var _super = _createSuper(AggregationLayer);
function AggregationLayer(props) {
var _this;
(0, _classCallCheck2["default"])(this, AggregationLayer);
_this = _super.call(this, props);
_this.getPosition = (0, _lodash["default"])(pointPosAccessor, pointPosResolver);
_this.getColorValue = (0, _lodash["default"])(getValueAggr, aggrResolver);
_this.getColorRange = (0, _lodash["default"])(getLayerColorRange);
_this.getElevationValue = (0, _lodash["default"])(getValueAggr, aggrResolver);
return _this;
}
(0, _createClass2["default"])(AggregationLayer, [{
key: "isAggregated",
get: function get() {
return true;
}
}, {
key: "requiredLayerColumns",
get: function get() {
return aggregateRequiredColumns;
}
}, {
key: "columnPairs",
get: function get() {
return this.defaultPointColumnPairs;
}
}, {
key: "noneLayerDataAffectingProps",
get: function get() {
return [].concat((0, _toConsumableArray2["default"])((0, _get2["default"])((0, _getPrototypeOf2["default"])(AggregationLayer.prototype), "noneLayerDataAffectingProps", this)), ['enable3d', 'colorRange', 'colorScale', 'colorDomain', 'sizeRange', 'sizeScale', 'sizeDomain', 'percentile', 'coverage', 'elevationPercentile', 'elevationScale']);
}
}, {
key: "visualChannels",
get: function get() {
return {
color: {
aggregation: 'colorAggregation',
channelScaleType: _defaultSettings.CHANNEL_SCALES.colorAggr,
defaultMeasure: 'Point Count',
domain: 'colorDomain',
field: 'colorField',
key: 'color',
property: 'color',
range: 'colorRange',
scale: 'colorScale'
},
size: {
aggregation: 'sizeAggregation',
channelScaleType: _defaultSettings.CHANNEL_SCALES.sizeAggr,
condition: function condition(config) {
return config.visConfig.enable3d;
},
defaultMeasure: 'Point Count',
domain: 'sizeDomain',
field: 'sizeField',
key: 'size',
property: 'height',
range: 'sizeRange',
scale: 'sizeScale'
}
};
}
/**
* Get the description of a visualChannel config
* @param key
* @returns {{label: string, measure: (string|string)}}
*/
}, {
key: "getVisualChannelDescription",
value: function getVisualChannelDescription(key) {
// e.g. label: Color, measure: Average of ETA
var _this$visualChannels$ = this.visualChannels[key],
range = _this$visualChannels$.range,
field = _this$visualChannels$.field,
defaultMeasure = _this$visualChannels$.defaultMeasure,
aggregation = _this$visualChannels$.aggregation;
return {
label: this.visConfigSettings[range].label,
measure: this.config[field] ? "".concat(this.config.visConfig[aggregation], " of ").concat(this.config[field].name) : defaultMeasure
};
}
}, {
key: "getHoverData",
value: function getHoverData(object) {
// return aggregated object
return object;
}
/**
* Aggregation layer handles visual channel aggregation inside deck.gl layer
*/
}, {
key: "updateLayerVisualChannel",
value: function updateLayerVisualChannel(_ref3, channel) {
var data = _ref3.data,
allData = _ref3.allData;
this.validateVisualChannel(channel);
}
/**
* Validate aggregation type on top of basic layer visual channel validation
* @param channel
*/
}, {
key: "validateVisualChannel",
value: function validateVisualChannel(channel) {
// field type decides aggregation type decides scale type
this.validateFieldType(channel);
this.validateAggregationType(channel);
this.validateScale(channel);
}
/**
* Validate aggregation type based on selected field
*/
}, {
key: "validateAggregationType",
value: function validateAggregationType(channel) {
var visualChannel = this.visualChannels[channel];
var field = visualChannel.field,
aggregation = visualChannel.aggregation;
var aggregationOptions = this.getAggregationOptions(channel);
if (!aggregation) {
return;
}
if (!aggregationOptions.length) {
// if field cannot be aggregated, set field to null
this.updateLayerConfig((0, _defineProperty2["default"])({}, field, null));
} else if (!aggregationOptions.includes(this.config.visConfig[aggregation])) {
// current aggregation type is not supported by this field
// set aggregation to the first supported option
this.updateLayerVisConfig((0, _defineProperty2["default"])({}, aggregation, aggregationOptions[0]));
}
}
}, {
key: "getAggregationOptions",
value: function getAggregationOptions(channel) {
var visualChannel = this.visualChannels[channel];
var field = visualChannel.field,
channelScaleType = visualChannel.channelScaleType;
return Object.keys(this.config[field] ? _defaultSettings.FIELD_OPTS[this.config[field].type].scale[channelScaleType] : _defaultSettings.DEFAULT_AGGREGATION[channelScaleType]);
}
/**
* Get scale options based on current field and aggregation type
* @param {string} channel
* @returns {string[]}
*/
}, {
key: "getScaleOptions",
value: function getScaleOptions(channel) {
var visualChannel = this.visualChannels[channel];
var field = visualChannel.field,
aggregation = visualChannel.aggregation,
channelScaleType = visualChannel.channelScaleType;
var aggregationType = this.config.visConfig[aggregation];
return this.config[field] ? // scale options based on aggregation
_defaultSettings.FIELD_OPTS[this.config[field].type].scale[channelScaleType][aggregationType] : // default scale options for point count
_defaultSettings.DEFAULT_AGGREGATION[channelScaleType][aggregationType];
}
/**
* Aggregation layer handles visual channel aggregation inside deck.gl layer
*/
}, {
key: "updateLayerDomain",
value: function updateLayerDomain(dataset, newFilter) {
return this;
}
}, {
key: "updateLayerMeta",
value: function updateLayerMeta(allData, getPosition) {
// get bounds from points
var bounds = this.getPointsBounds(allData, getPosition); // get lightSettings from points
var lightSettings = this.getLightSettingsFromBounds(bounds);
this.updateMeta({
bounds: bounds,
lightSettings: lightSettings
});
}
}, {
key: "formatLayerData",
value: function formatLayerData(_, allData, filteredIndex, oldLayerData) {
var opt = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {};
var getPosition = this.getPosition(this.config.columns);
if (!oldLayerData || oldLayerData.getPosition !== getPosition) {
this.updateLayerMeta(allData, getPosition);
}
var getColorValue = this.config.colorField ? this.getColorValue(this.config.colorField, this.config.visConfig.colorAggregation) : undefined;
var getElevationValue = this.config.sizeField ? this.getElevationValue(this.config.sizeField, this.config.visConfig.sizeAggregation) : undefined;
var data;
if (oldLayerData && oldLayerData.data && opt.sameData && oldLayerData.getPosition === getPosition) {
data = oldLayerData.data;
} else {
data = filteredIndex.map(function (i) {
return allData[i];
});
}
return _objectSpread(_objectSpread({
data: data,
getPosition: getPosition
}, getColorValue ? {
getColorValue: getColorValue
} : {}), getElevationValue ? {
getElevationValue: getElevationValue
} : {});
}
}]);
return AggregationLayer;
}(_baseLayer["default"]);
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Copyright (c) 2023 Uber Technologies, Inc.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n//\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n// THE SOFTWARE.\n\nimport memoize from 'lodash.memoize';\nimport Layer from './base-layer';\nimport {hexToRgb} from 'utils/color-utils';\nimport {aggregate} from 'utils/aggregate-utils';\nimport {CHANNEL_SCALES, FIELD_OPTS, DEFAULT_AGGREGATION} from 'constants/default-settings';\n\nexport const pointPosAccessor = ({lat, lng}) => d => [\n  d[lng.fieldIdx],\n  d[lat.fieldIdx]\n];\n\nexport const pointPosResolver = ({lat, lng}) =>\n  `${lat.fieldIdx}-${lng.fieldIdx}`;\n\nexport const getValueAggr = (field, aggregation) => points =>\n  aggregate(points.map(p => p[field.tableFieldIndex - 1]), aggregation);\n\nconst aggrResolver = (field, aggregation) => `${field.name}-${aggregation}`;\n\nconst getLayerColorRange = colorRange => colorRange.colors.map(hexToRgb);\n\nexport const aggregateRequiredColumns = ['lat', 'lng'];\n\nexport default class AggregationLayer extends Layer {\n  constructor(props) {\n    super(props);\n\n    this.getPosition = memoize(pointPosAccessor, pointPosResolver);\n    this.getColorValue = memoize(getValueAggr, aggrResolver);\n    this.getColorRange = memoize(getLayerColorRange);\n    this.getElevationValue = memoize(getValueAggr, aggrResolver);\n  }\n\n  get isAggregated() {\n    return true;\n  }\n\n  get requiredLayerColumns() {\n    return aggregateRequiredColumns;\n  }\n\n  get columnPairs() {\n    return this.defaultPointColumnPairs;\n  }\n\n  get noneLayerDataAffectingProps() {\n    return [\n      ...super.noneLayerDataAffectingProps,\n      'enable3d',\n      'colorRange',\n      'colorScale',\n      'colorDomain',\n      'sizeRange',\n      'sizeScale',\n      'sizeDomain',\n      'percentile',\n      'coverage',\n      'elevationPercentile',\n      'elevationScale'\n    ];\n  }\n\n  get visualChannels() {\n    return {\n      color: {\n        aggregation: 'colorAggregation',\n        channelScaleType: CHANNEL_SCALES.colorAggr,\n        defaultMeasure: 'Point Count',\n        domain: 'colorDomain',\n        field: 'colorField',\n        key: 'color',\n        property: 'color',\n        range: 'colorRange',\n        scale: 'colorScale'\n      },\n      size: {\n        aggregation: 'sizeAggregation',\n        channelScaleType: CHANNEL_SCALES.sizeAggr,\n        condition: config => config.visConfig.enable3d,\n        defaultMeasure: 'Point Count',\n        domain: 'sizeDomain',\n        field: 'sizeField',\n        key: 'size',\n        property: 'height',\n        range: 'sizeRange',\n        scale: 'sizeScale'\n      }\n    };\n  }\n\n  /**\n   * Get the description of a visualChannel config\n   * @param key\n   * @returns {{label: string, measure: (string|string)}}\n   */\n  getVisualChannelDescription(key) {\n    // e.g. label: Color, measure: Average of ETA\n    const {range, field, defaultMeasure, aggregation} = this.visualChannels[key];\n    return {\n      label: this.visConfigSettings[range].label,\n      measure: this.config[field]\n        ? `${this.config.visConfig[aggregation]} of ${this.config[field].name}`\n        : defaultMeasure\n    }\n  }\n\n  getHoverData(object) {\n    // return aggregated object\n    return object;\n  }\n\n  /**\n   * Aggregation layer handles visual channel aggregation inside deck.gl layer\n   */\n  updateLayerVisualChannel({data, allData}, channel) {\n    this.validateVisualChannel(channel);\n  }\n\n  /**\n   * Validate aggregation type on top of basic layer visual channel validation\n   * @param channel\n   */\n  validateVisualChannel(channel) {\n\n    // field type decides aggregation type decides scale type\n    this.validateFieldType(channel);\n    this.validateAggregationType(channel);\n    this.validateScale(channel);\n  }\n\n  /**\n   * Validate aggregation type based on selected field\n   */\n  validateAggregationType(channel) {\n    const visualChannel = this.visualChannels[channel];\n    const {field, aggregation} = visualChannel;\n    const aggregationOptions = this.getAggregationOptions(channel);\n\n    if (!aggregation) {\n      return;\n    }\n\n    if (!aggregationOptions.length) {\n      // if field cannot be aggregated, set field to null\n      this.updateLayerConfig({[field]: null});\n\n    } else if (!aggregationOptions.includes(this.config.visConfig[aggregation])) {\n      // current aggregation type is not supported by this field\n      // set aggregation to the first supported option\n      this.updateLayerVisConfig({[aggregation]: aggregationOptions[0]});\n    }\n  }\n\n  getAggregationOptions(channel) {\n    const visualChannel = this.visualChannels[channel];\n    const {field, channelScaleType} = visualChannel;\n\n    return Object.keys(\n      this.config[field] ? FIELD_OPTS[this.config[field].type].scale[channelScaleType] :\n        DEFAULT_AGGREGATION[channelScaleType])\n  }\n\n  /**\n   * Get scale options based on current field and aggregation type\n   * @param {string} channel\n   * @returns {string[]}\n   */\n  getScaleOptions(channel) {\n    const visualChannel = this.visualChannels[channel];\n    const {field, aggregation, channelScaleType} = visualChannel;\n    const aggregationType = this.config.visConfig[aggregation];\n    return this.config[field] ?\n      // scale options based on aggregation\n      FIELD_OPTS[this.config[field].type].scale[channelScaleType][aggregationType] :\n      // default scale options for point count\n      DEFAULT_AGGREGATION[channelScaleType][aggregationType];\n  }\n\n  /**\n   * Aggregation layer handles visual channel aggregation inside deck.gl layer\n   */\n  updateLayerDomain(dataset, newFilter) {\n    return this;\n  }\n\n  updateLayerMeta(allData, getPosition) {\n    // get bounds from points\n    const bounds = this.getPointsBounds(allData, getPosition);\n\n    // get lightSettings from points\n    const lightSettings = this.getLightSettingsFromBounds(bounds);\n\n    this.updateMeta({bounds, lightSettings});\n  }\n\n  formatLayerData(_, allData, filteredIndex, oldLayerData, opt = {}) {\n    const getPosition = this.getPosition(this.config.columns);\n\n    if (!oldLayerData || oldLayerData.getPosition !== getPosition) {\n      this.updateLayerMeta(allData, getPosition);\n    }\n\n    const getColorValue = this.config.colorField\n      ? this.getColorValue(\n          this.config.colorField,\n          this.config.visConfig.colorAggregation\n        )\n      : undefined;\n\n    const getElevationValue = this.config.sizeField\n      ? this.getElevationValue(\n          this.config.sizeField,\n          this.config.visConfig.sizeAggregation\n        )\n      : undefined;\n\n    let data;\n    if (\n      oldLayerData &&\n      oldLayerData.data &&\n      opt.sameData &&\n      oldLayerData.getPosition === getPosition\n    ) {\n      data = oldLayerData.data;\n    } else {\n      data = filteredIndex.map(i => allData[i]);\n    }\n\n    return {\n      data,\n      getPosition,\n      ...(getColorValue ? {getColorValue} : {}),\n      ...(getElevationValue ? {getElevationValue} : {})\n    };\n  }\n}\n"]}