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/* global L */
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/* global $ */
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4
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var mymap
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var heatmapLayer = null
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var marksLayer = null
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var startX = 49.7248
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var startY = 13.3521
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var startZoom = 17
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var dataSourceRoute
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let positionsSourceRoute
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let currentTime
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let currentDate
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var timer
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var isAnimationRunning = false
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var data = []
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var info = []
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let currentInfo = 0
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const datasetDictNameDisplayName = {}
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var datasetSelected = []
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// data only for one day
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let lockedDay = false
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let loading = 0
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// marks for all datasets
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const dataSourceMarks = {}
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const globalMarkersHolder = {}
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// all marker from which popup was removed
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// contains: {key:[L.circle,L.pupup]}
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// key: x and y, x + '' + y string
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let globalMarkersChanged = {}
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const loadingY = () => {
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loading++
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}
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const loadingN = () => {
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loading--
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}
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const changeCurrentTime = (time = null) => {
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if (time !== null) {
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currentTime = time
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} else {
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$('#dropdown-time input[type="radio"]:checked').each(function () {
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currentTime = parseInt($(this).val())
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})
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}
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}
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const changeCurrentDate = (date = null) => {
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if (date) {
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currentDate = new Date(date)
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} else {
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currentDate = new Date($('#date').val())
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}
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$('#player-date span').html(`${currentDate.getDate()}. ${currentDate.getMonth() + 1}. ${currentDate.getFullYear()}`)
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$('#date').val(currentDateToString())
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data = []
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}
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const currentDayToString = () => {
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const day = currentDate.getDate()
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return day > 9 ? `${day}` : `0${day}`
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}
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const currentMonthToString = () => {
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const month = currentDate.getMonth() + 1
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return month > 9 ? `${month}` : `0${month}`
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}
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const currentDateToString = () => `${currentDate.getFullYear()}-${currentMonthToString()}-${currentDayToString()}`
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const addDayToCurrentDate = (day) => {
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currentDate.setDate(currentDate.getDate() + day)
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changeCurrentDate(currentDate)
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}
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const toggleDayLock = () => {
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lockedDay = !lockedDay
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$('#player-date').toggleClass('lock')
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}
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const fetchByNameDate = async (baseRoute, name, date, currentTime) => {
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const headers = new Headers()
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const myRequest = new Request(baseRoute + '/' + name + '/' + date + '/' + currentTime, {
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method: 'GET',
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headers: headers
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})
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const beforeJson = await fetch(myRequest)
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return beforeJson.json()
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}
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const fetchDataSourceMarks = async (positionRoute, datasetName) => {
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const headers = new Headers()
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const myRequest = new Request(positionRoute + '/' + datasetName, {
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method: 'GET',
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headers: headers
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})
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const beforeJson = await fetch(myRequest)
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return beforeJson.json()
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}
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const genPopUpControlButtons = (currentPage, numPages, onNextClick, onPreviousClick) => ({
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previousButton: '<button id="previous-info-btn" class="circle-button" onclick="previousInfo()"></button>',
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nextButton: '<button id="next-info-btn" class="circle-button next" onclick="nextInfo()"></button>',
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posInfo: `<div id="count-info">${currentPage} z ${numPages}</div>`
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})
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const genPopUpControls = (controls) => {
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return `<div class="popup-controls">${controls ? controls.reduce((sum, item) => sum + item, '') : ''}</div>`
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}
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const genMultipleDatasetsPopUp = (sum, currentPos, maxPos, datasetName) => {
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const popupHeader = `<strong id="dataset-info">${datasetName}</strong>`
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const popupData = `<div id="number-info"><span id="digit-info">${sum}</span></div>`
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const { previousButton, nextButton, posInfo } = genPopUpControlButtons(currentPos, maxPos)
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return `
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${popupHeader}
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${popupData}
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${genPopUpControls([previousButton, posInfo, nextButton])}
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`
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}
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const prepareLayerPopUp = (lat, lng, num, className) => L.popup({
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autoPan: false,
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className: className
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}).setLatLng([lat / num, lng / num])
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const genPopUp = (datasetName, place, count, sum, currentPos, maxPos) => {
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const popupHeader = `
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<strong>${datasetName}</strong>
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<div id="place-info">${place}</div>`
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const popupData = `
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<div id="number-info">
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<span id="digit-info">${count}</span>
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<span id="total-info">${(sum && (sum != count)) ? '/' + sum : ''}</span>
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</div>`
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const { previousButton, nextButton, posInfo } = genPopUpControlButtons(currentPos, maxPos)
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return `
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${popupHeader}
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${popupData}
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${genPopUpControls(maxPos > 1 ? [previousButton, posInfo, nextButton] : null)}
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`
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}
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const onCheckboxClicked = async (checkbox) => {
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if ($(checkbox).prop('checked')) {
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loadCurrentTimeHeatmap(dataSourceRoute, positionsSourceRoute)
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changeUrl()
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} else {
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loadCheckboxDatasetNameData()
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data.forEach((item, index) => {
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Object.keys(item).forEach((datasetName) => {
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if (datasetName === $(checkbox).val()) {
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delete data[index][datasetName]
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}
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})
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drawHeatmap(data[currentTime])
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})
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changeUrl()
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}
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}
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const debounce = (func, delay) => {
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let inDebounce
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return function () {
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const context = this
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const args = arguments
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clearTimeout(inDebounce)
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inDebounce = setTimeout(() => func.apply(context, args), delay)
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}
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}
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const onValueChangeRegister = () => {
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$('#date').change(function () {
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changeCurrentDate($(this).val())
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loadCurrentTimeHeatmap(dataSourceRoute, positionsSourceRoute)
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changeUrl()
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})
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$('#dropdown-time input[type="radio"]').each(function () {
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$(this).change(function () {
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changeHour(parseInt($(this).val()))
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drawHeatmap(data[currentTime])
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})
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})
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$('#dropdown-dataset input[type="checkbox"]').each(function () {
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$(this).change(
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debounce(() => onCheckboxClicked(this), 1000)
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)
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})
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}
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/**
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* Initialize leaflet map on start position which can be default or set based on user action
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*/
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// eslint-disable-next-line no-unused-vars
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function initMap () {
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startX = localStorage.getItem('lat') || startX
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startY = localStorage.getItem('lng') || startY
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startZoom = localStorage.getItem('zoom') || startZoom
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mymap = L.map('heatmap').setView([startX, startY], startZoom)
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L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
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attribution: '',
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maxZoom: 19
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}).addTo(mymap)
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mymap.on('click', showInfo)
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}
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const getInfoLength = () => {
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const infoKeys = Object.keys(info)
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if (infoKeys.length === 1) {
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// return number of records in one dataset (one dataset in area)
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return info[infoKeys[0]].items.length
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}
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// return number of datasets (agregation of all datasets in area)
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return infoKeys.length
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}
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const getElFromObjectInfo = (position) => {
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const keys = Object.keys(info)
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return info[keys[position]]
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}
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const hasInfoMultipleDatasets = () => {
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return Object.keys(info).length > 1
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}
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function showInfo (e) {
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info = []
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currentInfo = 0
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// https://wiki.openstreetmap.org/wiki/Zoom_levels
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// Todo change to variable - it is used in heatmap init
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const stile = 40075016.686 * Math.cos(startX) / Math.pow(2, mymap.getZoom())
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const radius = 25 * stile / 256
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let i = 0
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let lat = 0
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let lng = 0
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let total = 0
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const datasetsInRadius = {}
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Object.keys(data[currentTime]).forEach((key) => {
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const namedData = data[currentTime][key]
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namedData.items.forEach(element => {
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if (e.latlng.distanceTo(new L.LatLng(element.x, element.y)) < radius) {
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lat += element.x
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lng += element.y
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info[i] = { place: element.place, number: element.number, datasetName: key }
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total += parseInt(element.number)
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i++
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datasetsInRadius[key] = true
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}
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})
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})
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// Process info for more then one dataset
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info = info.reduce((acc, item) => {
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if (!acc[item.datasetName]) {
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acc[item.datasetName] = {
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items: [],
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number: 0,
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datasetName: item.datasetName
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}
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}
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acc[item.datasetName].items.push(item)
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acc[item.datasetName].number += Number(item.number)
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return acc
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}, {})
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// There is one dataset
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const numDatasets = Object.keys(datasetsInRadius).length
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if (!numDatasets) {
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return
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}
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if (numDatasets === 1) {
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const infoDict = getElFromObjectInfo(0)
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const info_ = infoDict.items
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const { place, number } = info_[currentInfo]
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prepareLayerPopUp(lat, lng, i, `popup-${infoDict.datasetName}`)
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.setContent(genPopUp(datasetDictNameDisplayName[infoDict.datasetName], place, number, total, currentInfo + 1, info_.length))
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.openOn(mymap)
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if (info_.length === 1) {
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$('#previous-info-btn').prop('disabled', true)
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$('#next-info-btn').prop('disabled', true)
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$('.popup-controls').hide()
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}
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} else {
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const { datasetName, number } = getElFromObjectInfo(currentInfo)
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prepareLayerPopUp(lat, lng, i, `popup-${datasetName}`)
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.setContent(genMultipleDatasetsPopUp(number, currentInfo + 1, getInfoLength(), datasetDictNameDisplayName[datasetName]))
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.openOn(mymap)
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}
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}
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318
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319
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// eslint-disable-next-line no-unused-vars
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function previousInfo () {
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321
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const infoLength = getInfoLength()
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const previousCurrentInfo = currentInfo
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323
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currentInfo = (currentInfo + infoLength - 1) % infoLength
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displayInfoText(previousCurrentInfo)
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326
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}
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327
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328
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// eslint-disable-next-line no-unused-vars
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329
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function nextInfo () {
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const infoLength = getInfoLength()
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331
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const previousCurrentInfo = currentInfo
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332
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currentInfo = (currentInfo + 1) % infoLength
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displayInfoText(previousCurrentInfo)
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335
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}
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336
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337
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function displayInfoText (previousInfoNum) {
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338
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const previousInfo = hasInfoMultipleDatasets() ? getElFromObjectInfo(previousInfoNum) : getElFromObjectInfo(0).items[previousInfoNum]
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339
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const info_ = hasInfoMultipleDatasets() ? getElFromObjectInfo(currentInfo) : getElFromObjectInfo(0).items[currentInfo]
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340
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const infoLength = getInfoLength()
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341
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const datasetInfo = $('#dataset-info')
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342
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343
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if (datasetInfo) {
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344
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$(datasetInfo).html(datasetDictNameDisplayName[info_.datasetName])
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345
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}
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346
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347
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$('#place-info').html(info_.place ? info_.place : info_.datasetName)
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348
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$('#digit-info').html(info_.number)
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349
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$('#count-info').html(currentInfo + 1 + ' z ' + infoLength)
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350
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351
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$('.leaflet-popup').removeClass(`popup-${previousInfo.datasetName}`)
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352
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$('.leaflet-popup').addClass(`popup-${info_.datasetName}`)
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353
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}
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354
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355
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// eslint-disable-next-line no-unused-vars
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356
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function setMapView (latitude, longitude, zoom) {
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357
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localStorage.setItem('lat', latitude)
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358
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localStorage.setItem('lng', longitude)
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359
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localStorage.setItem('zoom', zoom)
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360
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mymap.setView([latitude, longitude], zoom)
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361
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}
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362
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|
363
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/**
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364
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* Change animation start from playing to stopped or the other way round
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365
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*/
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366
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// eslint-disable-next-line no-unused-vars
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367
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function changeAnimationState () {
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368
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isAnimationRunning = !isAnimationRunning
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369
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370
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if (isAnimationRunning) {
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371
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$('#play-pause').attr('class', 'pause')
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372
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timer = setInterval(function () { next() }, 800)
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373
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} else {
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374
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clearTimeout(timer)
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375
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$('#play-pause').attr('class', 'play')
|
376
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}
|
377
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}
|
378
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|
379
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// eslint-disable-next-line no-unused-vars
|
380
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async function previous () {
|
381
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if (loading) {
|
382
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return
|
383
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}
|
384
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currentTime = (currentTime + 23) % 24
|
385
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changeHour(currentTime)
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386
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mymap.closePopup()
|
387
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if (!lockedDay && (currentTime === 23)) {
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388
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addDayToCurrentDate(-1)
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389
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await loadCurrentTimeHeatmap(dataSourceRoute, positionsSourceRoute)
|
390
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} else {
|
391
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drawHeatmap(data[currentTime])
|
392
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}
|
393
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}
|
394
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|
395
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async function next () {
|
396
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if (loading) {
|
397
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return
|
398
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}
|
399
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currentTime = (currentTime + 1) % 24
|
400
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changeHour(currentTime)
|
401
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mymap.closePopup()
|
402
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if (!lockedDay && (currentTime === 0)) {
|
403
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addDayToCurrentDate(1)
|
404
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await loadCurrentTimeHeatmap(dataSourceRoute, positionsSourceRoute)
|
405
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} else {
|
406
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drawHeatmap(data[currentTime])
|
407
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}
|
408
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}
|
409
|
|
410
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/**
|
411
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* Change browser url based on animation step.
|
412
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*/
|
413
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function changeUrl () {
|
414
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window.history.pushState(
|
415
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'',
|
416
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document.title,
|
417
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window.location.origin + window.location.pathname + `?date=${currentDateToString()}&time=${currentTime}${datasetSelected.reduce((acc, current) => acc + '&type=' + current, '')}`
|
418
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)
|
419
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}
|
420
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|
421
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function updateHeaderControls () {
|
422
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$(`#time_${currentTime}`).prop('checked', true)
|
423
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$('#dropdownMenuButtonTime').html((currentTime < 10 ? '0' : '') + `${currentTime}:00`)
|
424
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}
|
425
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|
426
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function setTimeline () {
|
427
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$('#timeline').text(currentTime + ':00')
|
428
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$('#timeline').attr('class', 'time hour-' + currentTime)
|
429
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}
|
430
|
const onChangeHour = (hour) => {
|
431
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changeHour(hour)
|
432
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drawHeatmap(data[currentTime])
|
433
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}
|
434
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const changeHour = (hour) => {
|
435
|
changeCurrentTime(hour)
|
436
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updateHeaderControls()
|
437
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setTimeline()
|
438
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changeUrl()
|
439
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}
|
440
|
|
441
|
/**
|
442
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* Load and display heatmap layer for current data
|
443
|
* @param {string} opendataRoute route to dataset source
|
444
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* @param {string} positionsRoute route to dataset postitions source
|
445
|
*/
|
446
|
// eslint-disable-next-line no-unused-vars
|
447
|
async function loadCurrentTimeHeatmap (opendataRoute, positionsRoute) {
|
448
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loadCheckboxDatasetNameData()
|
449
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|
450
|
dataSourceRoute = opendataRoute
|
451
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positionsSourceRoute = positionsRoute
|
452
|
const allPromises = []
|
453
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data[currentTime] = {}
|
454
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|
455
|
const dataSelectedHandler = async (datasetName) => {
|
456
|
if (!(datasetName in dataSourceMarks)) {
|
457
|
dataSourceMarks[datasetName] = await fetchDataSourceMarks(positionsRoute, datasetName)
|
458
|
}
|
459
|
const datasetData = await fetchByNameDate(dataSourceRoute, datasetName, currentDateToString(), currentTime)
|
460
|
data[currentTime][datasetName] = datasetData
|
461
|
}
|
462
|
datasetSelected.forEach((datasetName) => {
|
463
|
allPromises.push(dataSelectedHandler(datasetName))
|
464
|
})
|
465
|
|
466
|
loadingY()
|
467
|
Promise.all(allPromises).then(
|
468
|
() => {
|
469
|
loadingN()
|
470
|
drawDataSourceMarks(dataSourceMarks)
|
471
|
drawHeatmap(data[currentTime])
|
472
|
preload(currentTime, 1, currentDateToString())
|
473
|
preload(currentTime, -1, currentDateToString())
|
474
|
}
|
475
|
)
|
476
|
}
|
477
|
|
478
|
function drawDataSourceMarks (data) {
|
479
|
if (marksLayer != null) {
|
480
|
mymap.removeLayer(marksLayer)
|
481
|
}
|
482
|
|
483
|
marksLayer = L.layerGroup()
|
484
|
|
485
|
Object.keys(data).forEach((key_) => {
|
486
|
for (var key in data[key_]) {
|
487
|
const { x, y, name } = data[key_][key]
|
488
|
const pop =
|
489
|
prepareLayerPopUp(x, y, 1, `popup-${key_}`)
|
490
|
.setContent(genPopUp(datasetDictNameDisplayName[key_], name, 0, 0, 1, 1))
|
491
|
const newCircle =
|
492
|
L.circle([x, y], { radius: 2, fillOpacity: 0.8, color: '#004fb3', fillColor: '#004fb3', bubblingMouseEvents: true })
|
493
|
.bindPopup(pop)
|
494
|
globalMarkersHolder[x + '' + y] = [newCircle, pop] // add new marker to global holders
|
495
|
marksLayer.addLayer(
|
496
|
newCircle
|
497
|
)
|
498
|
}
|
499
|
})
|
500
|
|
501
|
marksLayer.setZIndex(-1).addTo(mymap)
|
502
|
}
|
503
|
|
504
|
async function preload (time, change, date) {
|
505
|
loadingY()
|
506
|
for (let nTime = time + change; nTime >= 0 && nTime <= 23; nTime = nTime + change) {
|
507
|
if (!data[nTime]) {
|
508
|
data[nTime] = {}
|
509
|
}
|
510
|
|
511
|
datasetSelected.forEach(async (datasetName) => {
|
512
|
if (!data[nTime][datasetName]) {
|
513
|
data[nTime][datasetName] = await fetchByNameDate(dataSourceRoute, datasetName, date, nTime)
|
514
|
}
|
515
|
})
|
516
|
}
|
517
|
loadingN()
|
518
|
}
|
519
|
|
520
|
function drawHeatmap (dataRaw) {
|
521
|
// Todo still switched
|
522
|
const dataDict = dataRaw
|
523
|
const mergedPoints = []
|
524
|
let max = 0
|
525
|
|
526
|
if (Object.keys(globalMarkersChanged).length) {
|
527
|
Object.keys(globalMarkersChanged).forEach(function (key) {
|
528
|
globalMarkersChanged[key][0].bindPopup(globalMarkersChanged[key][1])
|
529
|
})
|
530
|
globalMarkersChanged = {}
|
531
|
}
|
532
|
|
533
|
Object.keys(dataDict).forEach((key) => {
|
534
|
const data = dataDict[key]
|
535
|
max = Math.max(max, data.max)
|
536
|
|
537
|
if (data != null) {
|
538
|
// Bind back popups for markers (we dont know if there is any data for this marker or not)
|
539
|
const points = data.items.map((point) => {
|
540
|
const { x, y, number } = point
|
541
|
const key = x + '' + y
|
542
|
const holder = globalMarkersHolder[key]
|
543
|
|
544
|
if (!globalMarkersChanged[key] && number) {
|
545
|
// There is data for this marker => unbind popup with zero value
|
546
|
holder[0] = holder[0].unbindPopup()
|
547
|
globalMarkersChanged[key] = holder
|
548
|
}
|
549
|
|
550
|
return [x, y, number]
|
551
|
})
|
552
|
mergedPoints.push(...points)
|
553
|
} else {
|
554
|
if (heatmapLayer != null) {
|
555
|
mymap.removeLayer(heatmapLayer)
|
556
|
}
|
557
|
}
|
558
|
})
|
559
|
|
560
|
if (heatmapLayer != null) {
|
561
|
mymap.removeLayer(heatmapLayer)
|
562
|
}
|
563
|
|
564
|
if (mergedPoints.length) {
|
565
|
heatmapLayer = L.heatLayer(mergedPoints, { max: max, minOpacity: 0.5, radius: 35, blur: 30 }).addTo(mymap)
|
566
|
}
|
567
|
}
|
568
|
|
569
|
/**
|
570
|
* Checks dataset availibility
|
571
|
* @param {string} route authority for datasets availibility checks
|
572
|
*/
|
573
|
// eslint-disable-next-line no-unused-vars
|
574
|
function checkDataSetsAvailability (route) {
|
575
|
$.ajax({
|
576
|
type: 'POST',
|
577
|
// Todo it might be good idea to change db collections format
|
578
|
url: route + '/' + currentDateToString(),
|
579
|
success: function (result) {
|
580
|
updateAvailableDataSets(result)
|
581
|
}
|
582
|
})
|
583
|
}
|
584
|
|
585
|
function updateAvailableDataSets (available) {
|
586
|
let leastOneOptionEnabled = false
|
587
|
|
588
|
$('#dropdown-dataset .dropdown-item').each(function () {
|
589
|
const input = $(this).find('input')
|
590
|
const inputVal = input[0].value
|
591
|
|
592
|
if (!(inputVal in available)) {
|
593
|
$(this).addClass('disabled')
|
594
|
$(input).prop('checked', false)
|
595
|
} else {
|
596
|
leastOneOptionEnabled = true
|
597
|
$(this).removeClass('disabled')
|
598
|
}
|
599
|
})
|
600
|
|
601
|
$('#btn-update-heatmap').prop('disabled', !leastOneOptionEnabled)
|
602
|
}
|
603
|
|
604
|
function formatDate (date) {
|
605
|
var day = String(date.getDate())
|
606
|
var month = String(date.getMonth() + 1)
|
607
|
|
608
|
if (day.length === 1) {
|
609
|
day = '0' + day
|
610
|
}
|
611
|
|
612
|
if (month.length === 1) {
|
613
|
month = '0' + month
|
614
|
}
|
615
|
|
616
|
return date.getFullYear() + '-' + month + '-' + day
|
617
|
}
|
618
|
|
619
|
// eslint-disable-next-line no-unused-vars
|
620
|
function initDatepicker (availableDatesSource) {
|
621
|
var availableDates = ''
|
622
|
|
623
|
$.ajax({
|
624
|
type: 'GET',
|
625
|
url: availableDatesSource,
|
626
|
success: function (result) {
|
627
|
availableDates = String(result).split(',')
|
628
|
}
|
629
|
}).then(function () {
|
630
|
$('#date').datepicker({
|
631
|
format: 'yyyy-mm-dd',
|
632
|
language: 'cs',
|
633
|
beforeShowDay: function (date) {
|
634
|
if (availableDates.indexOf(formatDate(date)) < 0) {
|
635
|
return { enabled: false, tooltip: 'Žádná data' }
|
636
|
} else {
|
637
|
return { enabled: true }
|
638
|
}
|
639
|
},
|
640
|
autoclose: true
|
641
|
})
|
642
|
})
|
643
|
}
|
644
|
|
645
|
function initLocationsMenu () {
|
646
|
var locationsWrapper = '.locations'
|
647
|
var locationsDisplayClass = 'show'
|
648
|
|
649
|
if ($(window).width() <= 480) {
|
650
|
$(locationsWrapper).removeClass(locationsDisplayClass)
|
651
|
} else {
|
652
|
$(locationsWrapper).addClass(locationsDisplayClass)
|
653
|
}
|
654
|
}
|
655
|
|
656
|
function onDocumentReady () {
|
657
|
$('#dropdown-dataset').on('click', function (e) {
|
658
|
e.stopPropagation()
|
659
|
})
|
660
|
|
661
|
$('#btn-update-heatmap').prop('name', '')
|
662
|
changeCurrentTime()
|
663
|
setTimeline()
|
664
|
changeCurrentDate()
|
665
|
onValueChangeRegister()
|
666
|
}
|
667
|
|
668
|
const loadCheckboxDatasetNameData = () => {
|
669
|
datasetSelected = []
|
670
|
$('#dropdown-dataset .dropdown-item').each(function () {
|
671
|
const input = $(this).find('input')
|
672
|
const inputVal = input[0].value
|
673
|
|
674
|
if (input[0].checked) {
|
675
|
datasetSelected.push(inputVal)
|
676
|
}
|
677
|
|
678
|
datasetDictNameDisplayName[inputVal] = $(input).data('dataset-display-name')
|
679
|
})
|
680
|
}
|