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457 lines
12 KiB
457 lines
12 KiB
<template>
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<view class="content">
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<!-- #ifdef APP-PLUS || H5 -->
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<view @click="echarts.onClick" :prop="option" :change:prop="echarts.updateEcharts" id="echarts" class="echarts">
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</view>
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<!-- #endif -->
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<!-- #ifndef APP-PLUS || H5 -->
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<view>非 APP、H5 环境不支持</view>
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<!-- #endif -->
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</view>
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</template>
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<script>
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// 数据意义：开盘(open)，收盘(close)，最低(lowest)，最高(highest)，数量(vol)
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function splitData(rawData) {
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let raw = JSON.parse(JSON.stringify(rawData))
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let categoryData = [];
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let values = [];
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let volumes = [];
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for (let i = 0; i < raw.length; i++) {
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categoryData.push(raw[i].splice(0, 1)[0]);
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values.push(raw[i]);
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// console.log(raw[i],'*****')
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// volumes.push([i, raw[i][4], raw[i][0] >= raw[i][1] ? 1 : -1]);
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volumes.push([i, raw[i][3], raw[i][0] >= raw[i][1] ? 1 : -1]);
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}
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return {
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categoryData: categoryData,
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values: values,
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volumes: volumes
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};
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}
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function calculateMA(dayCount, values) {
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let result = [];
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for (let i = 0, len = values.length; i < len; i++) {
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if (i < dayCount) {
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result.push('-');
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continue;
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}
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let sum = 0;
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for (let j = 0; j < dayCount; j++) {
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sum += values[i - j][1];
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}
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result.push(+(sum / dayCount).toFixed(3));
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}
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return result;
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}
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export default {
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props: {
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kData,
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// 初始数据
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initData: {
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type: Array,
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required: true
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},
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upColor: {
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type: String,
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default: 'rgb(49,186,160)'
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},
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downColor: {
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type: String,
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default: 'rgb(252,95,95)'
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},
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// 警戒线颜色
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markLineColor: {
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type: String,
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default: '#ffffff'
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},
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// 警戒线文字颜色
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markLineLabelColor: {
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type: String,
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default: '#ffffff'
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},
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// 警戒线第二排文字
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markLineYTime: {
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type: String,
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default: '最新价'
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},
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// 警戒线文字背景颜色
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markLineLabelBackgroundColor: {
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type: String,
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default: '#00b6ff'
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},
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// Y轴颜色
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yAxisSplitLineColor: {
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type: String,
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default: '#333'
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},
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// Y轴刻度值颜色
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yAxisAxisLabelColor: {
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type: String,
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default: '#fff'
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},
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// 背景图
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backgroundImageUrl: {
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type: String,
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default: '#000'
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},
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},
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data() {
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return {
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option: {},
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oldData: {}
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}
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},
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onShow() {
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console.log(this.kData);
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this.init(this.kData)
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},
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mounted() {
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if (this.initData.length > 0) {
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this.init(this.initData)
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}
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},
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methods: {
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// 追加数据
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addData(oo) {
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let isUp = false;
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let isUpIndex = true;
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for (let i = 0; i < this.oldData.length; i++) {
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// console.log(listData[i][0], oo[0],listData[i][0] != oo[0])
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if (this.oldData[i][0] == oo[0]) {
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isUp = true;
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isUpIndex = i;
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this.oldData[isUpIndex] = oo
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}
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}
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if (!isUp) {
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this.oldData.shift();
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this.oldData.push(oo)
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}
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this.changeOption(this.oldData)
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},
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// 初始化数据
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init(data) {
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// console.log(data);
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this.oldData = JSON.parse(JSON.stringify(data));
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this.changeOption(this.oldData)
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},
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changeOption(res) {
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let data = splitData(JSON.parse(JSON.stringify(res)));
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this.option = {
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// animation: false,
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animationEasing: 'elasticOut',
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legend: {
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show: false,
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bottom: 10,
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left: 'center',
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data: ['Dow-Jones index', 'MA5', 'MA10']
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},
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tooltip: {
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trigger: 'axis',
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confine: true,
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axisPointer: {
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type: 'line',
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},
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backgroundColor: 'rgba(255, 255, 255, 0.8)',
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position: function (pos, params, el, elRect, size) {
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let obj = { top: 10 };
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obj[['left', 'right'][+(pos[0] < size.viewSize[0] / 2)]] = 30;
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return obj;
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},
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extraCssText: 'width: 170px'
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},
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axisPointer: {
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type: 'line',
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lineStyle: {
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type: 'solid',
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color: '#ffffff'
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},
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link: { xAxisIndex: 'all' },
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label: {
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backgroundColor: '#777'
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}
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},
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visualMap: {
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show: false,
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seriesIndex: 3,
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dimension: 2,
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pieces: [{
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value: 1,
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color: this.downColor
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}, {
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value: -1,
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color: this.upColor
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}]
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},
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grid: [
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{
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top: '4%',
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left: '2%',
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right: '18%',
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height: '65%',
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bottom: '0%',
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borderWidth: 20
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},
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{
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left: '2%',
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right: '18%',
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bottom: '5%',
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height: '25%'
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}
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],
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graphic: [
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{
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type: 'image', // 图形元素类型
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id: 'logo', // 更新或删除图形元素时指定更新哪个图形元素，如果不需要用可以忽略。
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right: 'center', // 根据父元素进行定位 （居中）
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bottom: 'middle', // 根据父元素进行定位 （0%）, 如果bottom的值是 0，也可以删除该bottom属性值。
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z: 0, // 层叠
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bounding: 'all', // 决定此图形元素在定位时，对自身的包围盒计算方式
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style: {
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image: this.backgroundImageUrl, // 这里一定要注意、注意，必须是https开头的图片路径地址
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width: '100%',
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height: '100%'
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}
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}],
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xAxis: [
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{
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show: false,
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type: 'category',
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},
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{
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type: 'category',
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gridIndex: 1,
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data: data.categoryData,
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// scale: true,
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// boundaryGap: false,
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axisTick: { show: false },
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minorTick: { show: false },
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axisLine: { onZero: false },
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axisLabel: { onZero: false },
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// splitNumber: 20,
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min: 'dataMin',
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max: 'dataMax',
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axisPointer: {
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label: {
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formatter: function (params) {
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let seriesValue = (params.seriesData[0] || {}).value;
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return params.value
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+ (seriesValue != null
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? '\n' + echarts.format.addCommas(seriesValue)
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: ''
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);
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}
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}
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}
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}
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],
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yAxis: [
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{
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scale: true,
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position: 'right',
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splitLine: {
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show: true,
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lineStyle: {
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color: this.yAxisSplitLineColor
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}
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},
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axisLabel: {
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show: true,
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color: this.yAxisAxisLabelColor,
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},
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minorTick: {
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show: true,
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splitNumber: 10,
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lineStyle: {
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color: this.yAxisAxisLabelColor,
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}
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}
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},
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{
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scale: true,
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gridIndex: 1,
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splitNumber: 1,
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axisLabel: { show: false },
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axisLine: { show: false },
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axisTick: { show: false },
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splitLine: { show: false }
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}
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],
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dataZoom: [
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{
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type: 'inside',
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xAxisIndex: [0, 1],
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zoomOnMouseWheel: false,
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moveOnMouseMove: false,
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moveOnMouseWheel: false,
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start: 0,
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end: 100,
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},
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{
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show: true,
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xAxisIndex: [0, 1],
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type: 'inside',
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zoomOnMouseWheel: false,
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moveOnMouseMove: false,
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moveOnMouseWheel: false,
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top: '85%',
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start: 0,
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end: 100,
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}
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],
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series: [
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{
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name: 'Dow-Jones index',
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type: 'candlestick',
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data: data.values,
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itemStyle: {
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color: this.upColor,
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color0: this.downColor,
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borderColor: null,
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borderColor0: null
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},
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tooltip: {
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formatter: function (param) {
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param = param[0];
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return [
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'Date: ' + param.name + '<hr size=1 style="margin: 3px 0">',
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'Open: ' + param.data[0] + '<br/>',
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'Close: ' + param.data[1] + '<br/>',
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'Lowest: ' + param.data[2] + '<br/>',
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'Highest: ' + param.data[3] + '<br/>'
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].join('');
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}
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},
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markLine: {
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symbol: 'none', //去掉警戒线最后面的箭头
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data: [
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{
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silent: false,//鼠标悬停事件 true没有，false有
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yAxis: data.values[data.values.length - 1][1],// 警戒线的标注值，可以有多个yAxis,多条警示线 或者采用 {type : 'average', name: '平均值'}，type值有 max min average，分为最大，最小，平均值
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lineStyle: { //警戒线的样式 ，虚实 颜色
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type: "solid",
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color: this.markLineColor,
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},
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label: {
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position: "end",//将警示值放在哪个位置，三个值“start”,"middle","end" 开始 中点 结束
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color: this.markLineLabelColor,
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// backgroundColor:"#00b6ff",
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fontSize: "12px",
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formatter: [
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'{a|{c}}',
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'{b|' + this.markLineYTime + '}'
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].join('\n'),
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// formatter:"{c}\n最新价",
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rich: {
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a: {
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padding: 4,
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backgroundColor: this.markLineLabelBackgroundColor,
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align: 'right',
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},
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b: {
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padding: 4,
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backgroundColor: this.markLineLabelBackgroundColor,
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align: 'right',
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},
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}
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},
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},
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]
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},
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},
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{
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name: 'MA5',
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type: 'line',
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symbol: "none",
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data: calculateMA(5, data.values),
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smooth: true,
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lineStyle: {
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opacity: 0.5
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}
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},
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{
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name: 'MA10',
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type: 'line',
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symbol: "none",
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data: calculateMA(10, data.values),
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smooth: true,
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lineStyle: {
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opacity: 0.5
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}
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},
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{
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name: 'Volume',
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type: 'bar',
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xAxisIndex: 1,
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yAxisIndex: 1,
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data: data.volumes
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}
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]
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}
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},
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onViewClick(options) {
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// console.log(options)
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}
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}
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}
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</script>
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<script module="echarts" lang="renderjs">
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let myChart
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export default {
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mounted() {
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if (typeof window.echarts === 'function') {
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this.initEcharts()
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} else {
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// 动态引入较大类库避免影响页面展示
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const script = document.createElement('script')
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// view 层的页面运行在 www 根目录，其相对路径相对于 www 计算
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script.src = 'static/echarts.min.js'
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script.onload = this.initEcharts.bind(this)
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document.head.appendChild(script)
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}
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},
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methods: {
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initEcharts() {
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myChart = echarts.init(document.getElementById('echarts'), null, {renderer: 'svg'})
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// 观测更新的数据在 view 层可以直接访问到
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myChart.setOption(this.option)
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},
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updateEcharts(newValue, oldValue, ownerInstance, instance) {
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// 监听 service 层数据变更
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if (myChart) {
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myChart.setOption(newValue)
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}
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},
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onClick(event, ownerInstance) {
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// 调用 service 层的方法
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ownerInstance.callMethod('onViewClick', {
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test: 'test'
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})
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}
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}
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}
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</script>
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|
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<style>
|
|
.content {
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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}
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.echarts {
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width: 100%;
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height: 482px;
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overflow: hidden;
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width: 100%;
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background-color: #12023e;
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}
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</style>
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