60 lines
1.8 KiB
Vue
60 lines
1.8 KiB
Vue
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<template>
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<div ref="chartRef" style="width: 100%; height: 400px;"></div>
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</template>
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<script setup>
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import { ref, onMounted, onUnmounted } from 'vue';
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import * as echarts from 'echarts';
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// --- 原始数据 ---
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const originalData = {
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'2024-06-19 21:36': 416, '2024-06-20 09:36': 796, '2024-06-20 21:36': 403,
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'2024-06-21 09:36': 236, '2024-06-21 21:36': 33, '2024-06-22 09:36': 29,
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'2024-06-22 21:36': 11, '2024-06-23 09:36': 10, '2024-06-23 21:36': 5,
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'2024-06-24 09:36': 10, '2024-06-24 21:36': 7, '2024-06-25 09:36': 1,
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'2024-06-25 21:36': 4, '2024-06-26 09:36': 6, '2024-06-26 21:36': 5,
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'2024-06-27 09:36': 5, '2024-06-27 21:36': 2, '2024-06-28 09:36': 1,
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'2024-06-28 21:36': 0, '2024-06-29 09:36': 1, '2024-06-29 21:36': 1
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};
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// --- Y轴镜像转换 ---
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const xAxisData = Object.keys(originalData);
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const yAxisMirroredData = Object.values(originalData).reverse();
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// --- ECharts 核心逻辑 ---
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const chartRef = ref(null);
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let myChart = null;
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const option = {
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title: {
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text: '事件热度预测',
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left: 'center'
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},
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tooltip: { trigger: 'axis' },
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grid: { left: '3%', right: '4%', bottom: '10%', containLabel: true },
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xAxis: {
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type: 'category',
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data: xAxisData,
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axisLabel: { rotate: 30 }
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},
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yAxis: { type: 'value' },
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series: [{
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name: '热度',
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data: yAxisMirroredData,
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type: 'line',
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smooth: true,
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itemStyle: { color: '#5470c6' },
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areaStyle: { color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{ offset: 0, color: 'rgba(84, 112, 198, 0.4)' }, { offset: 1, color: 'rgba(84, 112, 198, 0)' }])}
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}]
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};
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onMounted(() => {
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myChart = echarts.init(chartRef.value);
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myChart.setOption(option);
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window.addEventListener('resize', () => myChart.resize());
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});
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onUnmounted(() => {
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myChart?.dispose();
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});
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</script>
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