kepler.gl.geoiq/dist/utils/data-scale-utils.js

kepler.gl is a webgl based application to visualize large scale location data in the browser

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getQuantileDomain = getQuantileDomain;
exports.getOrdinalDomain = getOrdinalDomain;
exports.getLinearDomain = getLinearDomain;

var _dataUtils = require("./data-utils");

var _d3Array = require("d3-array");

// Copyright (c) 2019 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.

/**
 * return quantile domain for an array of data
 * @param {array} data
 * @param {function | undefined} valueAccessor
 * @param {function | undefined} sortFunc
 * @returns {array} domain
 */
function getQuantileDomain(data, valueAccessor, sortFunc) {
  var values = typeof valueAccessor === 'function' ? data.map(valueAccessor) : data;
  return values.filter(_dataUtils.notNullorUndefined).sort(sortFunc);
}
/**
 * return ordinal domain for an array of data
 * @param {array} data
 * @param {function} valueAccessor
 * @returns {array} domain
 */


function getOrdinalDomain(data, valueAccessor) {
  var values = typeof valueAccessor === 'function' ? data.map(valueAccessor) : data;
  return (0, _dataUtils.unique)(values).filter(_dataUtils.notNullorUndefined).sort();
}
/**
 * return linear domain for an array of data
 * @param {Array} data
 * @param {function} valueAccessor
 * @returns {Array} domain
 */


function getLinearDomain(data, valueAccessor) {
  var range = typeof valueAccessor === 'function' ? (0, _d3Array.extent)(data, valueAccessor) : (0, _d3Array.extent)(data);
  return range.map(function (d, i) {
    return d === undefined ? i : d;
  });
}
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