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/*
|
* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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|
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/**
|
* AUTO-GENERATED FILE. DO NOT MODIFY.
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*/
|
|
/*
|
* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
|
* distributed with this work for additional information
|
* regarding copyright ownership. The ASF licenses this file
|
* to you under the Apache License, Version 2.0 (the
|
* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/*
|
* A third-party license is embedded for some of the code in this file:
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* The method "quantile" was copied from "d3.js".
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* (See more details in the comment of the method below.)
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* The use of the source code of this file is also subject to the terms
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* and consitions of the license of "d3.js" (BSD-3Clause, see
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* </licenses/LICENSE-d3>).
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*/
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import * as zrUtil from 'zrender/lib/core/util.js';
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var RADIAN_EPSILON = 1e-4;
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// Although chrome already enlarge this number to 100 for `toFixed`, but
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// we sill follow the spec for compatibility.
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var ROUND_SUPPORTED_PRECISION_MAX = 20;
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function _trim(str) {
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return str.replace(/^\s+|\s+$/g, '');
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}
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/**
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* Linear mapping a value from domain to range
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* @param val
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* @param domain Domain extent domain[0] can be bigger than domain[1]
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* @param range Range extent range[0] can be bigger than range[1]
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* @param clamp Default to be false
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*/
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export function linearMap(val, domain, range, clamp) {
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var d0 = domain[0];
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var d1 = domain[1];
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var r0 = range[0];
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var r1 = range[1];
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var subDomain = d1 - d0;
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var subRange = r1 - r0;
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if (subDomain === 0) {
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return subRange === 0 ? r0 : (r0 + r1) / 2;
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}
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// Avoid accuracy problem in edge, such as
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// 146.39 - 62.83 === 83.55999999999999.
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// See echarts/test/ut/spec/util/number.js#linearMap#accuracyError
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// It is a little verbose for efficiency considering this method
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// is a hotspot.
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if (clamp) {
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if (subDomain > 0) {
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if (val <= d0) {
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return r0;
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} else if (val >= d1) {
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return r1;
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}
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} else {
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if (val >= d0) {
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return r0;
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} else if (val <= d1) {
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return r1;
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}
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}
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} else {
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if (val === d0) {
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return r0;
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}
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if (val === d1) {
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return r1;
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}
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}
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return (val - d0) / subDomain * subRange + r0;
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}
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/**
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* Convert a percent string to absolute number.
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* Returns NaN if percent is not a valid string or number
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*/
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export function parsePercent(percent, all) {
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switch (percent) {
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case 'center':
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case 'middle':
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percent = '50%';
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break;
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case 'left':
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case 'top':
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percent = '0%';
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break;
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case 'right':
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case 'bottom':
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percent = '100%';
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break;
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}
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if (zrUtil.isString(percent)) {
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if (_trim(percent).match(/%$/)) {
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return parseFloat(percent) / 100 * all;
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}
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return parseFloat(percent);
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}
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return percent == null ? NaN : +percent;
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}
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export function round(x, precision, returnStr) {
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if (precision == null) {
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precision = 10;
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}
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// Avoid range error
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precision = Math.min(Math.max(0, precision), ROUND_SUPPORTED_PRECISION_MAX);
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// PENDING: 1.005.toFixed(2) is '1.00' rather than '1.01'
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x = (+x).toFixed(precision);
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return returnStr ? x : +x;
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}
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/**
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* Inplacd asc sort arr.
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* The input arr will be modified.
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*/
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export function asc(arr) {
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arr.sort(function (a, b) {
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return a - b;
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});
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return arr;
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}
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/**
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* Get precision.
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*/
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export function getPrecision(val) {
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val = +val;
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if (isNaN(val)) {
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return 0;
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}
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// It is much faster than methods converting number to string as follows
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// let tmp = val.toString();
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// return tmp.length - 1 - tmp.indexOf('.');
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// especially when precision is low
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// Notice:
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// (1) If the loop count is over about 20, it is slower than `getPrecisionSafe`.
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// (see https://jsbench.me/2vkpcekkvw/1)
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// (2) If the val is less than for example 1e-15, the result may be incorrect.
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// (see test/ut/spec/util/number.test.ts `getPrecision_equal_random`)
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if (val > 1e-14) {
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var e = 1;
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for (var i = 0; i < 15; i++, e *= 10) {
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if (Math.round(val * e) / e === val) {
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return i;
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}
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}
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}
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return getPrecisionSafe(val);
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}
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/**
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* Get precision with slow but safe method
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*/
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export function getPrecisionSafe(val) {
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// toLowerCase for: '3.4E-12'
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var str = val.toString().toLowerCase();
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// Consider scientific notation: '3.4e-12' '3.4e+12'
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var eIndex = str.indexOf('e');
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var exp = eIndex > 0 ? +str.slice(eIndex + 1) : 0;
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var significandPartLen = eIndex > 0 ? eIndex : str.length;
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var dotIndex = str.indexOf('.');
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var decimalPartLen = dotIndex < 0 ? 0 : significandPartLen - 1 - dotIndex;
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return Math.max(0, decimalPartLen - exp);
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}
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/**
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* Minimal dicernible data precisioin according to a single pixel.
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*/
|
export function getPixelPrecision(dataExtent, pixelExtent) {
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var log = Math.log;
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var LN10 = Math.LN10;
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var dataQuantity = Math.floor(log(dataExtent[1] - dataExtent[0]) / LN10);
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var sizeQuantity = Math.round(log(Math.abs(pixelExtent[1] - pixelExtent[0])) / LN10);
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// toFixed() digits argument must be between 0 and 20.
|
var precision = Math.min(Math.max(-dataQuantity + sizeQuantity, 0), 20);
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return !isFinite(precision) ? 20 : precision;
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}
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/**
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* Get a data of given precision, assuring the sum of percentages
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* in valueList is 1.
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* The largest remainder method is used.
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* https://en.wikipedia.org/wiki/Largest_remainder_method
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*
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* @param valueList a list of all data
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* @param idx index of the data to be processed in valueList
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* @param precision integer number showing digits of precision
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* @return percent ranging from 0 to 100
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*/
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export function getPercentWithPrecision(valueList, idx, precision) {
|
if (!valueList[idx]) {
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return 0;
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}
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var seats = getPercentSeats(valueList, precision);
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return seats[idx] || 0;
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}
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/**
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* Get a data of given precision, assuring the sum of percentages
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* in valueList is 1.
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* The largest remainder method is used.
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* https://en.wikipedia.org/wiki/Largest_remainder_method
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*
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* @param valueList a list of all data
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* @param precision integer number showing digits of precision
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* @return {Array<number>}
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*/
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export function getPercentSeats(valueList, precision) {
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var sum = zrUtil.reduce(valueList, function (acc, val) {
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return acc + (isNaN(val) ? 0 : val);
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}, 0);
|
if (sum === 0) {
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return [];
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}
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var digits = Math.pow(10, precision);
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var votesPerQuota = zrUtil.map(valueList, function (val) {
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return (isNaN(val) ? 0 : val) / sum * digits * 100;
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});
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var targetSeats = digits * 100;
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var seats = zrUtil.map(votesPerQuota, function (votes) {
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// Assign automatic seats.
|
return Math.floor(votes);
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});
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var currentSum = zrUtil.reduce(seats, function (acc, val) {
|
return acc + val;
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}, 0);
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var remainder = zrUtil.map(votesPerQuota, function (votes, idx) {
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return votes - seats[idx];
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});
|
// Has remainding votes.
|
while (currentSum < targetSeats) {
|
// Find next largest remainder.
|
var max = Number.NEGATIVE_INFINITY;
|
var maxId = null;
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for (var i = 0, len = remainder.length; i < len; ++i) {
|
if (remainder[i] > max) {
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max = remainder[i];
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maxId = i;
|
}
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}
|
// Add a vote to max remainder.
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++seats[maxId];
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remainder[maxId] = 0;
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++currentSum;
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}
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return zrUtil.map(seats, function (seat) {
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return seat / digits;
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});
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}
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/**
|
* Solve the floating point adding problem like 0.1 + 0.2 === 0.30000000000000004
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* See <http://0.30000000000000004.com/>
|
*/
|
export function addSafe(val0, val1) {
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var maxPrecision = Math.max(getPrecision(val0), getPrecision(val1));
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// const multiplier = Math.pow(10, maxPrecision);
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// return (Math.round(val0 * multiplier) + Math.round(val1 * multiplier)) / multiplier;
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var sum = val0 + val1;
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// // PENDING: support more?
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return maxPrecision > ROUND_SUPPORTED_PRECISION_MAX ? sum : round(sum, maxPrecision);
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}
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// Number.MAX_SAFE_INTEGER, ie do not support.
|
export var MAX_SAFE_INTEGER = 9007199254740991;
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/**
|
* To 0 - 2 * PI, considering negative radian.
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*/
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export function remRadian(radian) {
|
var pi2 = Math.PI * 2;
|
return (radian % pi2 + pi2) % pi2;
|
}
|
/**
|
* @param {type} radian
|
* @return {boolean}
|
*/
|
export function isRadianAroundZero(val) {
|
return val > -RADIAN_EPSILON && val < RADIAN_EPSILON;
|
}
|
// eslint-disable-next-line
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var TIME_REG = /^(?:(\d{4})(?:[-\/](\d{1,2})(?:[-\/](\d{1,2})(?:[T ](\d{1,2})(?::(\d{1,2})(?::(\d{1,2})(?:[.,](\d+))?)?)?(Z|[\+\-]\d\d:?\d\d)?)?)?)?)?$/; // jshint ignore:line
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/**
|
* @param value valid type: number | string | Date, otherwise return `new Date(NaN)`
|
* These values can be accepted:
|
* + An instance of Date, represent a time in its own time zone.
|
* + Or string in a subset of ISO 8601, only including:
|
* + only year, month, date: '2012-03', '2012-03-01', '2012-03-01 05', '2012-03-01 05:06',
|
* + separated with T or space: '2012-03-01T12:22:33.123', '2012-03-01 12:22:33.123',
|
* + time zone: '2012-03-01T12:22:33Z', '2012-03-01T12:22:33+8000', '2012-03-01T12:22:33-05:00',
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* all of which will be treated as local time if time zone is not specified
|
* (see <https://momentjs.com/>).
|
* + Or other string format, including (all of which will be treated as local time):
|
* '2012', '2012-3-1', '2012/3/1', '2012/03/01',
|
* '2009/6/12 2:00', '2009/6/12 2:05:08', '2009/6/12 2:05:08.123'
|
* + a timestamp, which represent a time in UTC.
|
* @return date Never be null/undefined. If invalid, return `new Date(NaN)`.
|
*/
|
export function parseDate(value) {
|
if (value instanceof Date) {
|
return value;
|
} else if (zrUtil.isString(value)) {
|
// Different browsers parse date in different way, so we parse it manually.
|
// Some other issues:
|
// new Date('1970-01-01') is UTC,
|
// new Date('1970/01/01') and new Date('1970-1-01') is local.
|
// See issue #3623
|
var match = TIME_REG.exec(value);
|
if (!match) {
|
// return Invalid Date.
|
return new Date(NaN);
|
}
|
// Use local time when no timezone offset is specified.
|
if (!match[8]) {
|
// match[n] can only be string or undefined.
|
// But take care of '12' + 1 => '121'.
|
return new Date(+match[1], +(match[2] || 1) - 1, +match[3] || 1, +match[4] || 0, +(match[5] || 0), +match[6] || 0, match[7] ? +match[7].substring(0, 3) : 0);
|
}
|
// Timezoneoffset of Javascript Date has considered DST (Daylight Saving Time,
|
// https://tc39.github.io/ecma262/#sec-daylight-saving-time-adjustment).
|
// For example, system timezone is set as "Time Zone: America/Toronto",
|
// then these code will get different result:
|
// `new Date(1478411999999).getTimezoneOffset(); // get 240`
|
// `new Date(1478412000000).getTimezoneOffset(); // get 300`
|
// So we should not use `new Date`, but use `Date.UTC`.
|
else {
|
var hour = +match[4] || 0;
|
if (match[8].toUpperCase() !== 'Z') {
|
hour -= +match[8].slice(0, 3);
|
}
|
return new Date(Date.UTC(+match[1], +(match[2] || 1) - 1, +match[3] || 1, hour, +(match[5] || 0), +match[6] || 0, match[7] ? +match[7].substring(0, 3) : 0));
|
}
|
} else if (value == null) {
|
return new Date(NaN);
|
}
|
return new Date(Math.round(value));
|
}
|
/**
|
* Quantity of a number. e.g. 0.1, 1, 10, 100
|
*
|
* @param val
|
* @return
|
*/
|
export function quantity(val) {
|
return Math.pow(10, quantityExponent(val));
|
}
|
/**
|
* Exponent of the quantity of a number
|
* e.g., 1234 equals to 1.234*10^3, so quantityExponent(1234) is 3
|
*
|
* @param val non-negative value
|
* @return
|
*/
|
export function quantityExponent(val) {
|
if (val === 0) {
|
return 0;
|
}
|
var exp = Math.floor(Math.log(val) / Math.LN10);
|
/**
|
* exp is expected to be the rounded-down result of the base-10 log of val.
|
* But due to the precision loss with Math.log(val), we need to restore it
|
* using 10^exp to make sure we can get val back from exp. #11249
|
*/
|
if (val / Math.pow(10, exp) >= 10) {
|
exp++;
|
}
|
return exp;
|
}
|
/**
|
* find a “nice” number approximately equal to x. Round the number if round = true,
|
* take ceiling if round = false. The primary observation is that the “nicest”
|
* numbers in decimal are 1, 2, and 5, and all power-of-ten multiples of these numbers.
|
*
|
* See "Nice Numbers for Graph Labels" of Graphic Gems.
|
*
|
* @param val Non-negative value.
|
* @param round
|
* @return Niced number
|
*/
|
export function nice(val, round) {
|
var exponent = quantityExponent(val);
|
var exp10 = Math.pow(10, exponent);
|
var f = val / exp10; // 1 <= f < 10
|
var nf;
|
if (round) {
|
if (f < 1.5) {
|
nf = 1;
|
} else if (f < 2.5) {
|
nf = 2;
|
} else if (f < 4) {
|
nf = 3;
|
} else if (f < 7) {
|
nf = 5;
|
} else {
|
nf = 10;
|
}
|
} else {
|
if (f < 1) {
|
nf = 1;
|
} else if (f < 2) {
|
nf = 2;
|
} else if (f < 3) {
|
nf = 3;
|
} else if (f < 5) {
|
nf = 5;
|
} else {
|
nf = 10;
|
}
|
}
|
val = nf * exp10;
|
// Fix 3 * 0.1 === 0.30000000000000004 issue (see IEEE 754).
|
// 20 is the uppper bound of toFixed.
|
return exponent >= -20 ? +val.toFixed(exponent < 0 ? -exponent : 0) : val;
|
}
|
/**
|
* This code was copied from "d3.js"
|
* <https://github.com/d3/d3/blob/9cc9a875e636a1dcf36cc1e07bdf77e1ad6e2c74/src/arrays/quantile.js>.
|
* See the license statement at the head of this file.
|
* @param ascArr
|
*/
|
export function quantile(ascArr, p) {
|
var H = (ascArr.length - 1) * p + 1;
|
var h = Math.floor(H);
|
var v = +ascArr[h - 1];
|
var e = H - h;
|
return e ? v + e * (ascArr[h] - v) : v;
|
}
|
/**
|
* Order intervals asc, and split them when overlap.
|
* expect(numberUtil.reformIntervals([
|
* {interval: [18, 62], close: [1, 1]},
|
* {interval: [-Infinity, -70], close: [0, 0]},
|
* {interval: [-70, -26], close: [1, 1]},
|
* {interval: [-26, 18], close: [1, 1]},
|
* {interval: [62, 150], close: [1, 1]},
|
* {interval: [106, 150], close: [1, 1]},
|
* {interval: [150, Infinity], close: [0, 0]}
|
* ])).toEqual([
|
* {interval: [-Infinity, -70], close: [0, 0]},
|
* {interval: [-70, -26], close: [1, 1]},
|
* {interval: [-26, 18], close: [0, 1]},
|
* {interval: [18, 62], close: [0, 1]},
|
* {interval: [62, 150], close: [0, 1]},
|
* {interval: [150, Infinity], close: [0, 0]}
|
* ]);
|
* @param list, where `close` mean open or close
|
* of the interval, and Infinity can be used.
|
* @return The origin list, which has been reformed.
|
*/
|
export function reformIntervals(list) {
|
list.sort(function (a, b) {
|
return littleThan(a, b, 0) ? -1 : 1;
|
});
|
var curr = -Infinity;
|
var currClose = 1;
|
for (var i = 0; i < list.length;) {
|
var interval = list[i].interval;
|
var close_1 = list[i].close;
|
for (var lg = 0; lg < 2; lg++) {
|
if (interval[lg] <= curr) {
|
interval[lg] = curr;
|
close_1[lg] = !lg ? 1 - currClose : 1;
|
}
|
curr = interval[lg];
|
currClose = close_1[lg];
|
}
|
if (interval[0] === interval[1] && close_1[0] * close_1[1] !== 1) {
|
list.splice(i, 1);
|
} else {
|
i++;
|
}
|
}
|
return list;
|
function littleThan(a, b, lg) {
|
return a.interval[lg] < b.interval[lg] || a.interval[lg] === b.interval[lg] && (a.close[lg] - b.close[lg] === (!lg ? 1 : -1) || !lg && littleThan(a, b, 1));
|
}
|
}
|
/**
|
* [Numeric is defined as]:
|
* `parseFloat(val) == val`
|
* For example:
|
* numeric:
|
* typeof number except NaN, '-123', '123', '2e3', '-2e3', '011', 'Infinity', Infinity,
|
* and they rounded by white-spaces or line-terminal like ' -123 \n ' (see es spec)
|
* not-numeric:
|
* null, undefined, [], {}, true, false, 'NaN', NaN, '123ab',
|
* empty string, string with only white-spaces or line-terminal (see es spec),
|
* 0x12, '0x12', '-0x12', 012, '012', '-012',
|
* non-string, ...
|
*
|
* @test See full test cases in `test/ut/spec/util/number.js`.
|
* @return Must be a typeof number. If not numeric, return NaN.
|
*/
|
export function numericToNumber(val) {
|
var valFloat = parseFloat(val);
|
return valFloat == val // eslint-disable-line eqeqeq
|
&& (valFloat !== 0 || !zrUtil.isString(val) || val.indexOf('x') <= 0) // For case ' 0x0 '.
|
? valFloat : NaN;
|
}
|
/**
|
* Definition of "numeric": see `numericToNumber`.
|
*/
|
export function isNumeric(val) {
|
return !isNaN(numericToNumber(val));
|
}
|
/**
|
* Use random base to prevent users hard code depending on
|
* this auto generated marker id.
|
* @return An positive integer.
|
*/
|
export function getRandomIdBase() {
|
return Math.round(Math.random() * 9);
|
}
|
/**
|
* Get the greatest common divisor.
|
*
|
* @param {number} a one number
|
* @param {number} b the other number
|
*/
|
export function getGreatestCommonDividor(a, b) {
|
if (b === 0) {
|
return a;
|
}
|
return getGreatestCommonDividor(b, a % b);
|
}
|
/**
|
* Get the least common multiple.
|
*
|
* @param {number} a one number
|
* @param {number} b the other number
|
*/
|
export function getLeastCommonMultiple(a, b) {
|
if (a == null) {
|
return b;
|
}
|
if (b == null) {
|
return a;
|
}
|
return a * b / getGreatestCommonDividor(a, b);
|
}
|
