kepler.gl
Version:
kepler.gl is a webgl based application to visualize large scale location data in the browser
96 lines (82 loc) • 10.7 kB
JavaScript
;
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.findDefaultLayer = findDefaultLayer;
exports.calculateLayerData = calculateLayerData;
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }
function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { (0, _defineProperty2["default"])(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
// Copyright (c) 2020 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
/**
* Find default layers from fields
*
* @param {Object} dataset
* @param {Object} layerClasses
* @returns {Array} found layers
*/
function findDefaultLayer(dataset) {
var layerClasses = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
if (!dataset) {
return [];
}
var layerProps = Object.keys(layerClasses).reduce(function (previous, lc) {
var result = typeof layerClasses[lc].findDefaultLayerProps === 'function' ? layerClasses[lc].findDefaultLayerProps(dataset, previous) : {
props: []
};
var props = Array.isArray(result) ? result : result.props || [];
var foundLayers = result.foundLayers || previous;
return foundLayers.concat(props.map(function (p) {
return _objectSpread({}, p, {
type: lc,
dataId: dataset.id
});
}));
}, []); // go through all layerProps to create layer
return layerProps.map(function (props) {
var layer = new layerClasses[props.type](props);
return typeof layer.setInitialLayerConfig === 'function' ? layer.setInitialLayerConfig(dataset.allData) : layer;
});
}
/**
* calculate layer data based on layer type, col Config,
* return updated layer if colorDomain, dataMap has changed
* @param {Object} layer
* @param {Object} state
* @param {Object} oldLayerData
* @returns {{layerData: Array<Object>, layer: Object | undefined}}
*/
function calculateLayerData(layer, state, oldLayerData) {
var type = layer.type;
if (!type || !layer.hasAllColumns() || !layer.config.dataId) {
return {
layer: layer,
layerData: {}
};
}
var layerData = layer.formatLayerData(state.datasets, oldLayerData);
return {
layerData: layerData,
layer: layer
};
}
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