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| Original file line number | Diff line number | Diff line change |
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@@ -24,3 +24,8 @@ | |
| background-color: hsl(200, 20%, 95%); | ||
| } | ||
| } | ||
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| canvas { | ||
| width: 100%; | ||
| position: relative; | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,105 @@ | ||
| let weather_chart_element | ||
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| const CHART_COLORS = { | ||
| red: 'rgb(255, 99, 132)', | ||
| orange: 'rgb(255, 159, 64)', | ||
| yellow: 'rgb(255, 205, 86)', | ||
| green: 'rgb(75, 192, 192)', | ||
| blue: 'rgb(54, 162, 235)', | ||
| purple: 'rgb(153, 102, 255)', | ||
| grey: 'rgb(201, 203, 207)', | ||
| } | ||
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| function generate_weather_chart_data(weatherElement) { | ||
| const time = (str) => { | ||
| let m = new Date(str) | ||
| let dateString = `${m.getUTCMonth() + 1}/${m.getUTCDate()} ${m.getUTCHours()}點` | ||
| return dateString | ||
| } | ||
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| let maxt_chart_image_data = { | ||
| datasets: [], | ||
| } | ||
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| let mint_chart_image_data = { | ||
| datasets: [], | ||
| } | ||
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| let labels = [] | ||
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| // 產生標籤 | ||
| let data = [] | ||
| for (let z = 0; z < weatherElement[0].time.length; z++) { | ||
| const element = weatherElement[0].time[z] | ||
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| data.push(time(element.startTime)) | ||
| // 如果是最後一個Time | ||
| if (z == weatherElement[0].time.length - 1) { | ||
| data.push(time(element.endTime)) | ||
| } | ||
| } | ||
| for (let y = 0; y < data.length - 1; y++) { | ||
| labels.push([`${data[y]} -`, data[y + 1]]) | ||
| } | ||
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| for (let i = 0; i < weatherElement.length; i++) { | ||
| let weatherElementName = weatherElement[i].elementName | ||
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| // 如果是最大溫度 | ||
| if (weatherElementName == 'MaxT') { | ||
| maxt_chart_image_data.datasets = [ | ||
| { | ||
| label: '最大溫度', | ||
| data: [], | ||
| borderColor: CHART_COLORS.red, | ||
| }, | ||
| ] | ||
| for (let n = 0; n < weatherElement[i].time.length; n++) { | ||
| const element = weatherElement[i].time[n] | ||
| maxt_chart_image_data.datasets[0].data.push(element.parameter.parameterName) | ||
| } | ||
| console.log(JSON.stringify(maxt_chart_image_data)) | ||
| } | ||
| // 如果是最小溫度 | ||
| if (weatherElementName == 'MinT') { | ||
| mint_chart_image_data.datasets = [ | ||
| { | ||
| label: '最小溫度', | ||
| data: [], | ||
| borderColor: CHART_COLORS.blue, | ||
| }, | ||
| ] | ||
| for (let n = 0; n < weatherElement[i].time.length; n++) { | ||
| const element = weatherElement[i].time[n] | ||
| mint_chart_image_data.datasets[0].data.push(element.parameter.parameterName) | ||
| } | ||
| console.log(JSON.stringify(mint_chart_image_data)) | ||
| } | ||
| } | ||
| if (weather_chart_element != undefined) weather_chart_element.destroy() | ||
| weather_chart_canvas = document.getElementById('weather_chart_canvas') | ||
| console.log(weather_chart_canvas) | ||
| let config = { | ||
| type: 'line', | ||
| data: { | ||
| labels: labels, | ||
| datasets: [maxt_chart_image_data.datasets[0], mint_chart_image_data.datasets[0]], | ||
| }, | ||
| options: { | ||
| plugins: { | ||
| title: { | ||
| display: true, | ||
| text: '36h天氣預測', | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
| console.dir(config) | ||
| weather_chart_element = chart(weather_chart_canvas, config) | ||
| } | ||
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||
| function chart(element, params) { | ||
| let canvas = new Chart(element, params) | ||
| if (canvas == null) console.error('canvas null') | ||
| return canvas | ||
| } |