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japanfuturegraph.html
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japanfuturegraph.html
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<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="UTF-8">
<title>Japan Alert Future Graph</title>
<!--Script-->
<script async src="https://www.googletagmanager.com/gtag/js?id=G-WK0WDPMXF1"></script>
<script src="./ga.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.3.0/Chart.min.js"></script>
<script>
//Main
var KEY_NAME = "東京都";
var newdata = "";
var cities = new Array();
var citiesIsLoad = false;
var isWidget = false;
var isDark = false;
var days = new Array();
var newdays = new Array();
var newweeks = new Array();
var newweeksdays = new Array();
var minnewday = 999999;
var maxnewday = 0;
function init() {
var params = (new URL(document.location)).searchParams;
try {
var changetime = removehtml(params.get("changetime"));
if ( changetime != "" && Number(changetime) > 0 ) { autochangetime = Number(changetime); }
} catch(e) {
}
try {
var darkmode = removehtml(params.get("darkmode"));
if ( darkmode == "dark" ) {
isDark = true;
document.body.style.color = "white";
document.body.style.backgroundColor = "black";
}
} catch(e) {
}
try {
var widgetmode = removehtml(params.get("widgetmode"));
if ( widgetmode == "widget" ) {
isWidget = true;
var form = document.getElementById("form");
form.style.visibility = "hidden";
form.style.height = "0px";
var title = document.getElementById("title");
title.style.visibility = "hidden";
title.style.height = "0px";
}
} catch(e) {
}
var startdate = dateToFormatString(lastmonth(new Date()), "%YYYY%-%MM%-%DD%");
var enddate = dateToFormatString(nextweek(new Date()), "%YYYY%-%MM%-%DD%");
showdateform(startdate, enddate);
loaddata();
}
function nowmonth() {
var date = new Date();
date.setDate(1);
return date;
}
function nextday(date) {
date.setDate(date.getDate()+1);
return date;
}
function nextweek(date) {
date.setDate(date.getDate()+7);
return date;
}
function lastmonth(date) {
date.setDate(date.getDate()-30);
date.setDate(1);
return date;
}
function showdateform(startvalue, endvalue) {
var start = document.getElementById("start");
var end = document.getElementById("end");
start.value = startvalue;
start.min = "2020-01-01";
start.max = endvalue;
end.value = endvalue;
end.min = "2020-01-01";
end.max = endvalue;
}
function checkdaterange(date) {
try {
var start = document.getElementById("start");
var end = document.getElementById("end");
var startdate = Date.parse(start.value);
var enddate = Date.parse(end.value);
var checkday = Date.parse(date);
var flag = false;
if ( Number(startdate) <= Number(checkday) && Number(checkday) <= Number(enddate) ) {
flag = true;
} else {
flag = false;
}
} catch(e) {
}
return flag;
}
function setchangekey(text) {
KEY_NAME = text;
}
function changecity() {
var cty = document.getElementById("cities");
var index = cty.selectedIndex;
var value = cty.options[index].value;
var text = cty.options[index].text;
KEY_NAME = text;
generatecsv();
}
function setchangecity() {
var option = document.getElementById("cities").getElementsByTagName("option");
for( var i=0; i<option.length; i++ ) {
try {
if( option[i].text == KEY_NAME ){
option[i].selected = true;
return;
}
} catch(e) {
}
}
}
function drawcities() {
var cty = document.getElementById("cities");
if ( cty.length < cities.length ) {
for ( var i=0; i<cities.length; i++ ) {
var option = document.createElement("option");
option.text = cities[i];
option.value = i;
cty.appendChild(option);
}
}
cty.disabled = false;
setchangecity();
}
function loaddata() {
csv_data('https://www3.nhk.or.jp/n-data/opendata/coronavirus/nhk_news_covid19_prefectures_daily_data.csv');
function csv_data(dataPath) {
const request = new XMLHttpRequest();
request.addEventListener('load', (event) => {
const response = event.target.responseText;
var resArray = response.split("\r");
//Keyの生成
for ( var i=1; i<resArray.length; i++ ) {
var data = resArray[i].split(",");
var day = data[0];
var city = data[2];
var totalday = data[4];
var newday = data[3];
if ( cities.indexOf(city) == -1 && city != "" && city != null ) {
cities.push(city);
}
}
cities = Array.from(new Set(cities));
drawcities();
for ( var i=1; i<resArray.length; i++ ) {
try {
var data = resArray[i].split(",");
var day = data[0];
var city = data[2];
var totalday = data[4];
var newday = data[3];
if ( city.indexOf(KEY_NAME) !== -1 ) {
if ( checkdaterange(day) ) {
days.push(day);
newdays.push(newday);
if ( maxnewday < Number(newday) ) {
maxnewday = Number(newday);
}
if ( minnewday > Number(newday) ) {
minnewday = Number(newday);
}
}
}
} catch(e) {
}
}
//データの追加
//最後の1週間のデータ集計
var newweeks = 0;
for ( var i=1; i<=7; i++ ) {
newweeks = newweeks + Number(newdays[newdays.length-i]);
}
//さらにその前の1週間のデータ集計
var oldweeks = 0;
for ( var i=8; i<=14; i++ ) {
oldweeks = oldweeks + Number(newdays[newdays.length-i]);
}
//未来の感染者数の1日あたり増加数
var futurenewday = ((newweeks - oldweeks) * 1.25) / 7;//暫定で1.25倍で計算
if ( futurenewday < 0 ) {
var newweeks = 0;
for ( var i=8; i<=14; i++ ) {
newweeks = newweeks + Number(newdays[newdays.length-i]);
}
//さらにその前の1週間のデータ集計
var oldweeks = 0;
for ( var i=15; i<=29; i++ ) {
oldweeks = oldweeks + Number(newdays[newdays.length-i]);
}
futurenewday = ((newweeks - oldweeks) * 1.25) / 7;//暫定で1.25倍で計算
}
//未来のデータ1週間分生成
var date = new Date();
for ( var i=0; i<7; i++ ) {
//未来の日付の追加
date = nextday(date,i);
var day = dateToFormatString(date, "%YYYY%-%MM%-%DD%");
days.push(day);
//未来の感染者数追加
var newday = Number(newdays[newdays.length-7+i]) + futurenewday;
newdays.push(newday);
if ( maxnewday < Number(newday) ) {
maxnewday = Number(newday);
}
if ( minnewday > Number(newday) ) {
minnewday = Number(newday);
}
}
drawchart(days, newdays);
});
request.open('GET', dataPath, true);
request.send();
}
}
function reloaddata() {
var graph = document.getElementById("graph");
graph.innerHTML = "<canvas id='chart'></canvas>";
days = new Array();
newdays = new Array();
newweeks = new Array();
newweeksdays = new Array();
minnewday = 999999;
maxnewday = 0;
loaddata();
}
function drawchart(lbl, data) {
var borderColor = "rgba(255,0,0,1)";
var backgroundColor = "rgba(0,0,0,0)";
var fontColor = "rgba(255,0,0,1)";
var ctx = document.getElementById("chart");
var myLineChart = new Chart(ctx, {
type: 'line',
data: {
labels: lbl,
datasets: [
{
id: 'y1',
label: '新規感染者数',
data: data,
borderColor: borderColor,
backgroundColor: backgroundColor
},
],
},
options: {
title: {
display: true,
text: KEY_NAME + "（" + lbl[0] + "~" + lbl[lbl.length-1] + "）"
},
scales: {
yAxes: [{
id: 'y1',
position: 'left',
scaleLabel: {
display: true,
labelString: '新規感染者数',
fontColor: fontColor
},
ticks: {
beginAtZero: true,
max: maxnewday
}
}]
},
}
});
}
function dateToFormatString(date, fmt, locale, pad) {
var padding = function(n, d, p) {
p = p || '0';
return (p.repeat(d) + n).slice(-d);
};
var DEFAULT_LOCALE = 'ja-JP';
var getDataByLocale = function(locale, obj, param) {
var array = obj[locale] || obj[DEFAULT_LOCALE];
return array[param];
};
var format = {
'YYYY': function() { return padding(date.getFullYear(), 4, pad); },
'YY': function() { return padding(date.getFullYear() % 100, 2, pad); },
'MMMM': function(locale) {
var month = {
'ja-JP': ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12'],
'en-US': ['January', 'February', 'March', 'April', 'May', 'June',
'July', 'August', 'September', 'October', 'November', 'December'],
};
return getDataByLocale(locale, month, date.getMonth());
},
'MMM': function(locale) {
var month = {
'ja-JP': ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12'],
'en-US': ['Jan.', 'Feb.', 'Mar.', 'Apr.', 'May', 'June',
'July', 'Aug.', 'Sept.', 'Oct.', 'Nov.', 'Dec.'],
};
return getDataByLocale(locale, month, date.getMonth());
},
'MM': function() { return padding(date.getMonth()+1, 2, pad); },
'M': function() { return date.getMonth()+1; },
'DD': function() { return padding(date.getDate(), 2, pad); },
'D': function() { return date.getDate(); },
'HH': function() { return padding(date.getHours(), 2, pad); },
'H': function() { return date.getHours(); },
'hh': function() { return padding(date.getHours() % 12, 2, pad); },
'h': function() { return date.getHours() % 12; },
'mm': function() { return padding(date.getMinutes(), 2, pad); },
'm': function() { return date.getMinutes(); },
'ss': function() { return padding(date.getSeconds(), 2, pad); },
's': function() { return date.getSeconds(); },
'A': function() {
return date.getHours() < 12 ? 'AM' : 'PM';
},
'a': function(locale) {
var ampm = {
'ja-JP': ['午前', '午後'],
'en-US': ['am', 'pm'],
};
return getDataByLocale(locale, ampm, date.getHours() < 12 ? 0 : 1);
},
'W': function(locale) {
var weekday = {
'ja-JP': ['日曜日', '月曜日', '火曜日', '水曜日', '木曜日', '金曜日', '土曜日'],
'en-US': ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],
};
return getDataByLocale(locale, weekday, date.getDay());
},
'w': function(locale) {
var weekday = {
'ja-JP': ['日', '月', '火', '水', '木', '金', '土'],
'en-US': ['Sun', 'Mon', 'Tue', 'Wed', 'Thur', 'Fri', 'Sat'],
};
return getDataByLocale(locale, weekday, date.getDay());
},
};
var fmtstr = [''];
Object.keys(format).forEach(function(key) {
fmtstr.push(key);
})
var re = new RegExp('%(' + fmtstr.join('|') + ')%', 'g');
var replaceFn = function(match, fmt) {
if(fmt === '') {
return '%';
}
var func = format[fmt];
if(func === undefined) {
return match;
}
return func(locale);
};
return fmt.replace(re, replaceFn);
}
function removehtml(str) {
return str.replace(/<("[^"]*"|'[^']*'|[^'">])*>/g,'');
}
function delayedCall(second, callBack){
setTimeout(callBack, second * 1000);
}
</script>
<!--Script-->
<style>
body {
margin: 0;
padding-top: 2em;
display:block;
justify-content: center;
text-align: center;
background-color: white;
}
.form {
background-color: red;
padding: 10px 20px;
}
#graph {
margin: 0;
position: relative;
margin: 0 auto;
width: 100%;
height: auto;
overflow: hidden;
}
#footer {
position: fixed;
display: inline-block;
bottom:0px;
left: 0px;
width:100%;
color: #aaa;
font-size: 16px;
background: #555;
}
</style>
</head>
<body onload="init();">
<h1 id="title">Japan Alert Future Graph</h1>
<div class="form" id="form">
<select name="cities" id="cities" onchange="changecity();"></select><br/>
<input type="date" id="start" value="2020/01/01"><br/>
<input type="date" id="end" value="" readonly><br/>
<button type="submit" onclick="reloaddata();"><big>読み込み</big></button>
</div>
<hr/>
<div id="graph">
<canvas id="chart"></canvas>
</div>
<div id="footer">
<script>
document.write("2021©️" + document.domain);
</script>
</div>
</body>
</html>