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Ginza.js #1 LT_Draw_LineChart
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MzRyuKa
May 22, 2019
Technology
1
530
Ginza.js #1 LT_Draw_LineChart
Ginza.js #1 LT用資料
タイトル「JavaScriptを好きになるためにLineChartを描画してみた」
MzRyuKa
May 22, 2019
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Transcript
JavaScriptΛ͖ʹͳΔͨΊʹ LineChartΛඳըͯ͠Έͨ 2019.05.22 Ginza.js #1 @MzRyuKa !1
ࣗݾհɿΈͣΓΎ { ৬ۀ: ‘ಠཱܥSIer’, ΤϯδχΞྺ: ‘20ʹಥೖ’, ࣄͰ͏ٕज़: [ ‘Ruby’,’RRDtool’,’SNMP’,’JavaScript’ ],
ਪ͠ݴޠ: [‘Golang’,’Elixir’], ͖ͳͷ: [ ‘Ͷ͜’, ’͏͞·Δ’,’ٕज़’], Twitter : { TwitterID: ‘@MzRyuKa’, ঢ়ଶ: 'Search Suggestion Ban’ }, ϒϩά: ‘https://mzryuka.hatenablog.jp/’ } !2
͜Ε·ͰͷJavaScriptͱͷ͖߹͍ αʔόͰ࣮ࢪ͢ΔνΣοΫॲཧΛΫϥΠΞϯτଆ Ͱ࣮ࢪͤ͞ΒΕΔʢ͔͠Ճྉۚͳ͠ʣ ͔ͤͬ͘ॻ੍͍ͨޚʮJavaScriptΦϑʹ͢Δӡ ༻͔ͩΒʯͰΘΕͳ͔ͬͨ IE͚ͩจ๏͕ҧ͏ʂͰɺ͏ͷIEeee!!! 2000લͷࠒͷͰ͢ɻ ΠϯλʔωοτਓձͷఔͰฉ͖ྲྀ͍ͯͩ͘͠͞ !3
ύϥμΠϜγϑτɿJavaScript࣌ ਖ਼ɺഇΕ͍ͯ͘ͱࢥͬͯͨɻ ʢ2000લׂͱॏ͔ͬͨ͠ɺIE͕໘ͩ͠ʣ ͔͠͠ɺੈ·͞ʹʮJavaScriptͷ࣌ʯʂ JavaScript͑ͳ͚ΕΤϯδχΞʹඇͣͳ෩ை งғؾͰ͍ͬͯΔ͚Ͳɺਖ਼ͦ͜·Ͱ͖Ͱ ͳ͍ɻԿΑΓɺۤखҙ͕ࣝ…orz !4
సػͷஹ͠ ͦΜͳ࣌ʹɺʮGinza.js #1ʯͷࠂ͕ʂ ͜Εɺྑ͍͖͔͚ͬʹͳΔ͔ʂ LT͕ۭ͍͍ͯΔɻʮLTۦಈͩʂʯͰਃ͠ࠐΈʂ ※ޙɺCORSʹ·ͬͯٽ͖ΛݟͨͷൿີͰ͢ɻ !5
JavaScriptΛ͖ʹͳΔͨΊʹ LineChartΛඳըͯ͠Έͨ ͔͜͜Βຊฤ !6
͖ʹͳ͍ͬͯ͘ʹ͋ͨͬͯ ϏδϡΞϥΠζ͞Ε͍ͯΔ͜ͱ ࠓ͍ͬͯΔۀͷϓϥεʹͳΔ͜ͱ ͦΜͳʹ࿑ྗ͔͚ͳͯ͘ࡁΉ͜ͱ ͜Ε·ͰɺงғؾͰjQueryΛͬͯͨΓɺnode.jsReactɺVue.jsͷೖϨϕϧ͖͚ͬͯͨͲΠ ϚΠνೃછ·ͳ͔ͬͨɻͳͷͰগ͠ཧͯ͠Έͨɻ !7
ࠓ͍ͬͯΔ͓ࣄ SNMPͰऔಘͨ͠σʔλΛRRDtoolʹอଘͯ͠άϥϑΛ ඳը͍ͯ͠Δɻ → ͩͬͨΒɺ͜Εͱಉ͡Α͏ͳࣄ͢Εྑͦ͞͏ɻ ʢࣄ࣌ؒதʹͬͯͯޡຐԽ͠ޮͬ͘͠ΐʣ !8
ߟ͑ͨߏ νϟʔτ༻ͷJSONΛฦ͢ॲཧ JSONΛड͚औͬͯϥΠϯνϟʔτΛ දࣔ͢ΔWebαʔό !9 → ͲͪΒɺNetlifyΛ͑؆୯ʹ४උͰ͖ͦ͏
DEMO !10 DEMO URL: https://upbeat-einstein-a1e1ed.netlify.com/public/index.html GitHub URL: https://github.com/rykawamu/biorhythm_chart_project
JSONΛฦ͢ॲཧ νϟʔτදࣔ࣌ʹΘ͔Γ͍͢ͷ͕ྑ͍ͷͰɺ ʮόΠΦϦζϜʯσʔλΛฦ͢͜ͱʹͨ͠ɻ ʮΫΤϦจࣈྻʯͰσʔλมಈཁૉ༩͑ͱ͘ Netlify FunctionsΛͬͯJSONΛฦ͢ !11 URL: https://upbeat-einstein-a1e1ed.netlify.com/.netlify/functions/biorhythm?birth_date=1960-02-23&base_date=&period=60
༨ஊɿόΠΦϦζϜͱ ੜ໋ମͷʮମʢPhysicalʣʯʮײ ʢSensitivityʣʯʮੑʢIntellectualʣʯ͕Ұ ఆͷपظύλʔϯͰมԽ͢Δͱݴ͏આʹجͮ ͍ͨάϥϑͷ͜ͱ ʮਖ਼ݭʯͷܗͰɺy = sin(2 π t
/ T) ͷࣜͰࢉग़͞ΕΔɻ t: ج४ - ੜ݄ ͔Βࢉग़͞ΕΔ T: ମʢPʣͷ߹23ɺײʢPʣͷ߹28ɺ ੑʢIʣͷ߹33ͷݻఆͷͱͳΔɻ 23ͱ28ͱ33ͷ࠷খެഒ21252Ͱ͋Δɻ ʹ͢ͱʮ58.2ʯͰ͋Δɻ !12 //Create biorhythm data const [p_v, s_v, i_v] = (function() { const pi = Math.PI const biorhythm_func = (function(T) { return Math.sin(elapsed_days * 2 * pi / T).toFixed(4) }) const physical = biorhythm_func(23); const sensitivity = biorhythm_func(28); const intellectual = biorhythm_func(33); return [physical, sensitivity, intellectual] })();
LineChart:ϥΠϯνϟʔτ Chart.js C3.js Google Chart खؒΛ͔͚ͨ͘ͳ͔ͬͨͷͰɺ·ͣ༗໊Ͳ͜ΖͷνϟʔτϥΠϒϥϦ͔ΒखΛ͚ͭͯΈΔɻ !13 ※ใࢀߟݩɿ JavaScriptͰάϥϑඳըೖʂશ̔ݸͷϥΠϒϥϦΛίʔυ͖ͰҰڍʹղઆʂ URL:
https://paiza.hatenablog.com/entry/2016/06/07/JavaScriptͰάϥϑඳըೖʂશ̔ݸͷϥΠϒϥϦΛίʔ
Chart.js HTML5ͷcanvasΛͬͯඳը͞ΕΔ ࣗಈతʹΞχϝʔγϣϯදࣔ͞ΕΔ ϥΠηϯεMIT ಛɿ !14 URL: https://upbeat-einstein-a1e1ed.netlify.com/public/chart_chart.html
Chart.js ར༻ྫ1 !15 var ctx = document.getElementById('myChart_b'); var myChart =
new Chart(ctx, { type: 'line', data: { datasets: [{ label: '# of Physical', fill: false, data: [], backgroundColor: 'rgba(0, 0, 255, 0.3)', borderColor: 'rgba(0, 0, 255, 0.3)', borderWidth: 3 } ,{ label: '# of Sensitivity', fill: false, data: [], backgroundColor: 'rgba(255, 0, 0, 0.3)', ~ҎԼུ~ document.getElementById()Ͱඳըରʹ͢ΔCanvasλάΛ ࢦఆ͢Δɻ canvasΦϒδΣΫτΛChartΦϒδΣΫτͷҾʹ͢Δ ͜ͱͰؔ࿈͚ͮΔɻ·ͨɺChartͷઃఆΦϒδΣΫτܗ ࣜͰ͢ɻ νϟʔτͷछྨtype:Ͱࢦఆ͢Δɻ’line’ʹ͢ΔͱʮϥΠ ϯνϟʔτʯʹͳΔɻ σʔλɺdata.datasets ʹରͯ͠ɺΦϒδΣΫτͷྻ Λ͢ɻΦϒδΣΫτ߲༻ҙ͢Δɻ ֤߲ͷΦϒδΣΫτͷʮdataʯʹදࣔ͢ΔσʔλΛ ઃఆ͢Δɻ
Chart.js ར༻ྫ2 !16 options: { scales: { xAxes: [{ type:
'time', distribution: 'series', time: { unit: 'day', displayFormats: {'day': 'YYYY-MM-DD'} }, scaleLabel: { display: true, labelString: '࣌' } }], yAxes: [{ ticks: { } }] } } ~ҎԼུ~ optionsΦϒδΣΫτΛ͢͜ͱͰɺX࣠Y࣠ ʹରͯ͠ͷઃఆՄೳʹͳΔɻ X࣠Λ࣌ܥྻʹ͢ΔͨΊʹɺtypeͰ’time’Λɺ distributionͰ’series’Λࢦఆ͢Δɻ X࣠ͷΛܗࣜYYYY-MM-DDͰઃఆ͢Δɻ X࣠ʹࢦఆ͢ΔϥϕϧΛ’࣌’ʹ͢Δɻ
C3.js SVGʢScalable Vector GraphicsʣΛར༻͍ͯ͠Δɻ D3.jsΛwrapͯ͠ɺ͍͍ͯ͘͢͠Δɻ άϥϑͷঢ়ଶʹΞΫηεͰ͖ΔAPI͕ଟ͍ɻ ಛɿ !17 URL: https://upbeat-einstein-a1e1ed.netlify.com/public/chart_c3.html
C3.js ར༻ྫ1 !18 <html> <head> <meta charset="UTF-8"> <link href="https://cdnjs.cloudflare.com/ajax/ libs/c3/0.7.0/c3.min.css"
rel="stylesheet" type="text/css"> <script src="https://cdnjs.cloudflare.com/ajax/ libs/d3/5.9.2/d3.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/ libs/c3/0.7.0/c3.min.js"></script> <title>c3.jsʹΑΔνϟʔτදࣔ</title> </head> <body> <div id="chart"></div> <script> var chart = c3.generate({ bindto: '#chart', ~ҎԼུ~ D3.jsΛར༻͢ΔͨΊɺD3.jsͷࢦఆ͕ඞཁʹͳ Δɻ c3.jsɺಉ࣌ʹc3.cssͷࢦఆඞཁʹͳΔɻ divλάͰඳը͢ΔՕॴΛઃఆɻ c3.generateͰɺchartΦϒδΣΫτΛੜ
C3.js ར༻ྫ2 !19 grid: { x: { lines: [ {value:
moment().format('YYYY-MM-DD'), text: 'ج४', position: 'start'}, ] }, y: { show: true, lines: [ {value: 0.0, text: 'ෆ҆ఆ', axis: 'y', position:’start'}, {value: 1.0, text: 'ߴௐ', axis: 'y', position: 'start'}, {value: -1.0, text: 'ௐ', axis: 'y', position: 'start'}, ] } }, // animation: tansition duration: miliseconds transition: { duration: 5000 }, // sub chart(Experimental) subchart: {show: true} ~ҎԼུ~ X࣠ʹิॿઢΛೖΕΔ߹ɺgrid.x.linesʹର͠ ͯઃఆͷΦϒδΣΫτͷྻΛೖΕΔɻ Y࣠ʹิॿઢΛೖΕΔ߹ɺgrid.x.linesʹର͠ ͯઃఆͷΦϒδΣΫτͷྻΛೖΕΔɻ transition.duration Ͱɺνϟʔτͷඳը࣌ͷΞ χϝʔγϣϯॲཧ͕࣌ؒઃఆͰ͖Δɻ ࣮ݧػೳ͕ͩɺαϒνϟʔτࢦఆͰ͖Δɻ
Google Chart SVGΛར༻͍ͯ͠Δ σʔλςʔϒϧͰ͋Δgoogle.visualization.DataTable ɺaddColumnͰ߲ΛɺaddRowsͰσʔλΛɺͦ ΕͧΕՃͰ͖Δɻ ಛɿ !20 URL: https://upbeat-einstein-a1e1ed.netlify.com/public/chart_google.html
Google Chart ར༻ྫ1 !21 const data = new google.visualization.DataTable(); data.addColumn('string',
'X'); data.addColumn('number', 'physical'); data.addColumn('number', 'sensitivity'); data.addColumn('number', 'intellectual'); data.addRows(chartData); const options = { 'title': 'Biorhythm Line Chart', 'width':900, 'height':500, hAxis: { title: 'Date', gridlines: {color: '#333', count: 10} }, vAxis: { title: 'Biorhythm PSI', gridlines: {color: '#333', count: 10} }, }; ~ҎԼུ~ දࣔσʔλgoogle.visualization.DatatTableͷΦ ϒδΣΫτΛੜͯ͠ɺͦ͜ʹઃఆ͢Δɻ දࣔ͢Δ߲addColumnͰݸʑʹՃ͢Δɻ දࣔσʔλaddRowsͰઃఆ͢Δɻઃఆσʔλ ɺ[ [1,2,3,4], [5,6,7,8], [~ུ~], ... ]ͷΑ͏ʹೋ࣍ ݩྻɻʢ෦ͷྻཁૉɺ߲ʹ߹Θ ͤΔɻࠨͷྫͩͱ4ͭʣ දࣔσʔλҎ֎ͷઃఆใʢνϟʔτͷαΠζ X࣠Y࣠ͷใͳͲʣɺΦϒδΣΫτʹઃఆ ͢Δɻ
Google Chart ར༻ྫ2 !22 const chart = new google.visualization.LineChart(document.getElementById('chart_div')); //
printing png : // https://developers.google.com/chart/interactive/docs/printing const my_chart_div = document.getElementById('linechart_png'); google.visualization.events.addListener(chart, 'ready', function () { my_chart_div.innerHTML = '<img src="' + chart.getImageURI() + '">'; }); chart.draw(data, options); google.visualizetion.LineChartͰϥΠϯνϟʔτͷΦ ϒδΣΫτΛੜ getImageURIϝιουΛར༻͢ΕɺνϟʔτͷΠ ϝʔδਤऔಘՄೳɻ ϥΠϯνϟʔτʹΠϕϯτՃՄೳ ϕʔλ൛ͰʮϚςϦΞϧ൛ͷϥΠϯνϟʔτʯ ར༻Ͱ͖ΔɻʢϚεΦʔόʔ࣌ͷॲཧͳͲ͕߽ ՚ʹͳ͍ͬͯΔɻʣ ϚςϦΞϧ༻ͷϥΠϯνϟʔτʹ͢Δʹɺ packageͰlineΛϩʔυɺgoogle.charts.LineΦϒδΣ ΫτੜɺϚςϦΞϧ༻ͷoptionsͷม͕ඞཁɻ google.charts.load('current', {packages: ['corechart', 'line']}); ɹɹɹɹɹɹ~தུ~ const chart = new google.charts.Line(document.getElementById('linechart_material')); chart.draw(data, google.charts.Line.convertOptions(options)); ɹɹɹɹɹɹ~ҎԼུ~
·ͱΊ NetlifyϚδศར ChartϥΠϒϥϦ͘͢͝ศར νϟʔτ͕άϦάϦಈ͘ͱςϯγϣϯ্͕Δ ͕ࣗੌ͍͜ͱ͍ͯ͠Δؾ࣋ͪʹͳΕΔʢࡨ֮େࣄʣ ඇಉظॲཧ͜Ε͔Β͖ʹͳ͍ͬͯ͘ !23
ͪΐͬͱ͚ͩ JavaScript͕ ͖ʹͳΕ·ͨ͠ !24
༨ஊɿάϥϑͱνϟʔτͷҧ͍ άϥϑʢgraphʣ νϟʔτʢchartʣ ݪଇಉٛɻͨͩ͠ɺνϟʔτͷํ͕ཧղͤ͞Δҙ͕ࣝߴ͍ɻ !25 ɾάϥϑɺਤදɺਤࣜ ɾมԽ͢ΔࣈଌఆͷؒͷؔΛࣔͨ͢ΊʹઢۂઢΛ͏ֆ ɾྔͷ࣌ؒมԽେখؔɺׂ߹ͳͲΛɺࢹ֮తʹදݱͨ͠ਤ ɾւਤɺਫ࿏ਤɺߤۭ༻ͷνϟʔτɺւਤΛਤදʹࡌͤΔɻ ɾਤදɺάϥϑɺද
ɾཧղ͍͢͠Α͏ͳํ๏ͰใΛࣔ͢Ϧετɺඳըɺάϥϑɻʢϑϩʔνϟʔτʣ ɾใͷࢹ֮తදࣔɺਤɾදɾάϥϑͷ͜ͱ
༨ஊɿsvgͱcanvasͷҧ͍ svg ϕΫλʔܗࣜͰඳըɻ֦େɾॖখͰਤܗͷྼԽ͕ͳ͍ canvas ϥελʔܗࣜͰඳըɻϐΫηϧ୯ҐͰͷࡉ͔͍ඳը͕ߦ͑Δɻ ϕΫλʔܗ͔ࣜϥελʔʢϏοτϚοϓʣܗ͔ࣜͷҧ͍ɻ !26 ※ใҾ༻ݩɿ URL: https://qiita.com/ryuichi1208/items/95057c253844dc7d2454