在Vue3项目中使用 Echarts 绘制股票图表的分享(五):分时图的基础上绘制出五日图
绘制效果,我们可以发现:它多出了对这五天内的现价做个最高价和最低价的标注,并且对最新时间段的现价数据做个闪烁点+涟漪特效。现价中的闪烁点是使用带有涟漪特效动画的散点(气泡)图来实现的,它可以利用动画特效可以将某些想要突出的数据进行视觉突出。分析:五日图其实也就是展示了相当于五天的分时图的数据量;属性可以对图表的数据进行标注,借由该属性中的。我们可以在图表上标注出最高价和最低价。
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效果展示
分析:五日图其实也就是展示了相当于五天的分时图的数据量;对比前面的分时图绘制效果,我们可以发现:它多出了对这五天内的现价做个最高价和最低价的标注,并且对最新时间段的现价数据做个闪烁点+涟漪特效。
绘制五日图
关键代码
标注数据的最高价和最低价:
options['series'] = [
{
name: '当前价',
type: 'line',
data: prices.value,
smooth: true,
symbol: 'none',
gridIndex: 3,
lineStyle: {
opacity: 1,
color: '#FF3232',
width: 0.5
},
markPoint: {
label: {
color: '#ffffff',
fontSize: 10,
formatter: function ({ value }: any) {
return fomatFloat(value, 2);
}
},
data: [
{
type: 'max',
symbolOffset: [0, -12] // 设置markpoint图标的位置
},
{
type: 'min',
symbolOffset: [0, 12] // 设置markpoint图标的位置
}
],
symbolSize: 0
},
markLine: {
silent: true,
symbol: 'none',
label: {
show: true,
distance: [-40, 0]
},
lineStyle: {
color: '#2B2F39',
opacity: 1,
type: 'dashed'
},
data: [
{
yAxis: close.value,
lineStyle: {
color: '#2b2f39'
},
label: {
position: 'end',
color: '#999999',
fontWeight: 'bold',
fontSize: 10,
formatter: function () {
return '0.00%';
}
}
},
{
yAxis: close.value,
lineStyle: {
color: '#2b2f39'
},
label: {
fontSize: 10,
fontWeight: 'bold',
color: '#999999',
position: 'start',
formatter: function (params: any) {
return Number(params.value).toFixed(2);
}
}
}
]
},
emphasis: {
focus: 'none',
scale: false,
disabled: 'none',
lineStyle: {
width: 1
}
}
},
......
]
markPoint 属性可以对图表的数据进行标注,借由该属性中的 data 字段里面的 type 我们可以在图表上标注出最高价和最低价。
当前时间节点数据的闪烁点:
options['series'] = [
......
{
gridIndex: 0,
// 设置涟漪特效动画
type: 'effectScatter',
// 有三种: cartesian2d(二维的直角坐标系) polar(极坐标系) geo(地理坐标系) ,此需求使用cartesian2d
coordinateSystem: 'cartesian2d',
// 单个闪烁点 ↓
data: pricesEffectScatter, //2d坐标系--[x轴, y轴, 标记大小]
// 何时显示特效:'render'-绘制完成后显示特效 'emphasis'-高亮(hover)的时候显示特效
showEffectOn: 'render',
// 涟漪特效配置
rippleEffect: {
// 波纹的绘制方式,可选'stroke'和'fill'
brushType: 'stroke'
},
// hoverAnimation: true,
itemStyle: {
color: '#F9293E',
shadowBlur: 5,
shadowColor: '#F9293E'
},
zlevel: 9
}
......
]
现价中的闪烁点是使用带有涟漪特效动画的散点(气泡)图来实现的,它可以利用动画特效可以将某些想要突出的数据进行视觉突出。
官方涟漪特效散点图示例:
完整代码
<template>
<div class="stock-chart">
<div class="stock-chart-box">
<!-- 五日分时图 -->
<v-chart ref="vchart" v-if="showCharts" :option="options" :update-options="{ notMerge: true }" />
<div class="fix-date">
<div v-for="(item, index) in xDates">{{ item.slice(5, 10) }}</div>
</div>
</div>
</div>
</template>
<script lang="ts" setup>
import { ref, reactive, nextTick, onBeforeMount, onBeforeUnmount } from 'vue';
import 'echarts';
import VChart from 'vue-echarts';
import { initTime } from '@/utils/time.js';
// vchart组件的引用
const vchart = ref<any>(null);
// 昨日收盘价
let close = ref<number>(0);
// 现价数据
let prices = ref<number[]>([]);
// 均价数据
let avgPrices = ref<number[]>([]);
// 成交量
let volumes = ref<number[]>([]);
// 涨跌幅
let ratios = ref<number[]>([]);
// 涨跌额
let pcts = ref<number[]>([]);
// 最高价
let limitUp = ref<number>(0);
// 最低价
let limitDown = ref<number>(0);
// 最高涨幅
let pctChangeUp = ref<number>(0);
// 最低跌幅
let pctChangeDown = ref<number>(0);
// 控制图表展示
let showCharts = ref<boolean>(false);
// 交易日期数据
let xDates = ref<string[]>([]);
// 交易时间数据
let xTimes: string[] = initTime();
// 当前时间现价的闪烁点
let pricesEffectScatter = [] as any[];
// 图表配置项
let options = reactive({
animation: false,
grid: [
{
show: false,
id: 'gd1',
top: '7%',
left: '5%',
right: '5%',
bottom: '40%'
},
{
show: false,
id: 'gd2',
top: '7%',
left: '5%',
right: '5%',
bottom: '40%'
},
{
show: false,
id: 'gd3',
top: '60%',
left: '5%',
right: '5%',
bottom: '7%'
},
{
show: true,
id: 'gd4',
top: '7%',
left: '5%',
right: '5%',
bottom: '7%',
borderColor: '#2B2F39'
}
],
color: ['#FF3232', '#FFCE37'],
blendMode: 'source-over',
xAxis: [] as any[],
yAxis: [] as any[],
series: [] as any[]
});
function fomatFloat(src: any, pos = 2) {
return Math.round(src * Math.pow(10, pos)) / Math.pow(10, pos);
}
const initChart = () => {
limitUp.value = 12.05;
limitDown.value = 11.22;
close.value = 11.81;
let stockData: any = {};
for (let key in stockData) {
xDates.value.push(key);
let length = 0;
stockData[key].forEach((item: any, index: any, array: any) => {
length = index + 1;
prices.value.push(item[1]);
avgPrices.value.push(item[7]);
volumes.value.push(item[4]);
pcts.value.push(item[9]);
ratios.value.push(item[10]);
});
if (length < 241) {
length = 241 - length;
console.log(length);
}
let timeList = initTime();
xTimes.push(...timeList);
}
// 闪烁点
pricesEffectScatter = [
{
value: [prices.value.length, prices.value[prices.value.length - 1]],
symbolSize: 5
}
];
// 现价图图表四角的数据
// 最大差值:昨日收盘价 - 股票信息中的最高价 对比 昨日收盘价 - 股票信息中的最低价 取绝对值 ,两者哪个相差比较大就用哪个差值
// 最高价:昨日收盘价 + 最大差值
// 最低价:昨日收盘价 - 最大差值
// 最高涨幅:((昨日收盘价 + 最大差值) - 1) * 100
// 最低跌幅:-((昨日收盘价 + 最大差值) - 1) * 100
let maxSplit = Math.abs(limitUp.value - close.value) > Math.abs(close.value - limitDown.value) ? Math.abs(limitUp.value - close.value) : Math.abs(close.value - limitDown.value);
limitUp.value = fomatFloat(Number(close.value + maxSplit));
limitDown.value = fomatFloat(Number(close.value - maxSplit));
pctChangeUp.value = fomatFloat((limitUp.value / close.value - 1) * 100);
pctChangeDown.value = pctChangeUp.value > 0 ? fomatFloat(0 - pctChangeUp.value) : fomatFloat(pctChangeUp.value);
options['xAxis'] = [
{
//主图
show: true,
gridIndex: 0,
min: 0,
max: 1205,
interval: 241,
type: 'category',
splitNumber: 4,
data: xTimes,
boundaryGap: true,
axisLine: {
lineStyle: {
color: '#2B2F39'
}
},
axisLabel: {
show: false
},
axisTick: {
show: false
},
axisPointer: {
fontSize: 10,
label: {
show: false
}
},
splitLine: {
show: true,
interval: 240,
lineStyle: {
color: '#2B2F39',
width: 1
}
}
},
{
gridIndex: 1,
show: false,
min: 0,
max: 1205,
interval: 241,
splitNumber: 20,
data: xTimes,
axisLabel: {
show: false
},
axisPointer: {
fontSize: 10,
label: {
show: false
}
},
splitLine: {
show: false
}
},
{
show: true,
gridIndex: 2,
min: 0,
max: 1205,
interval: 241,
type: 'category',
splitNumber: 240,
axisLabel: {
show: false,
fontSize: 12,
color: '#bcbcbc',
interval: 240,
padding: [0, 0, 0, 80]
},
data: xTimes,
axisLine: {
show: false
},
axisTick: {
show: false
},
axisPointer: {
show: true,
label: {
color: '#ffffff',
backgroundColor: '#6E7079',
fontSize: 10
},
lineStyle: {
type: 'solid',
width: 0.5
}
},
splitLine: {
show: true,
interval: 240,
lineStyle: {
color: '2B2F39',
width: 1
}
}
},
{
show: false,
gridIndex: 3,
min: 0,
max: 1205,
type: 'category',
interval: 240,
axisLabel: {
show: false,
fontSize: 10,
color: '#FC8952',
interval: 240
},
splitLine: {
show: false
},
data: xTimes,
axisLine: {
show: false
},
axisTick: {
show: false
},
axisPointer: {
show: true,
label: {
color: '#ffffff',
backgroundColor: '#6E7079',
fontSize: 10
},
lineStyle: {
type: 'solid',
width: 0.5
}
}
}
];
options['yAxis'] = [
{
show: true,
scale: true,
gridIndex: 0,
boundaryGap: false,
min: limitDown,
max: limitUp,
axisLabel: {
show: false,
inside: false,
fontSize: 10,
color: function (value: any) {
if (value == close.value) {
return '#CCCCCC';
}
return value > close.value ? '#F9293E' : '#00aa3b';
}
},
z: 2,
axisLine: {
show: false
},
splitLine: {
show: false
},
axisPointer: {
show: true,
label: {
color: '#ffffff',
backgroundColor: '#6E7079',
fontSize: 10,
formatter: function ({ value }: any) {
return value.toFixed(2);
}
},
lineStyle: {
type: 'solid',
width: 0.5
}
}
},
{
show: false,
scale: true,
gridIndex: 1,
min: pctChangeDown.value,
max: pctChangeUp.value,
position: 'right',
z: 3,
axisLine: {
show: false
},
axisTick: {
show: false
},
axisLabel: {
inside: false,
fontSize: 10,
formatter: function (value: any) {
return value + '%';
}
},
splitLine: {
//分割线设置
show: false,
lineStyle: {
color: '#181a23',
width: 1
}
},
axisPointer: {
show: true,
label: {
color: '#ffffff',
backgroundColor: '#6E7079',
fontSize: 10,
formatter: function ({ value }: any) {
return value.toFixed(2) + '%';
}
},
lineStyle: {
type: 'solid',
width: 0.5
}
}
},
{
show: false,
gridIndex: 2,
z: 4,
scale: true,
type: 'value',
splitNumber: 1,
axisTick: {
show: false
},
splitLine: {
show: false,
lineStyle: {
color: '#FC8952',
width: 1
}
},
axisLine: {
show: false
},
axisLabel: {
color: '#FC8952',
fontSize: 10,
formatter: function (value: any) {
return fomatFloat(value / 10000, 0) + '万';
}
},
axisPointer: {
fontSize: 10,
label: {
formatter: function ({ value }: any) {
return fomatFloat(value / 10000, 0) + '万';
}
},
lineStyle: {
type: 'solid',
width: 0.5
}
}
},
{
show: false,
position: 'right',
gridIndex: 3,
z: 5,
scale: true,
axisLine: {
show: false
},
axisTick: {
show: false
},
axisLabel: {
show: false,
fontSize: '12'
},
splitLine: {
show: false
}
}
];
options['series'] = [
{
name: '当前价',
type: 'line',
data: prices.value,
smooth: true,
symbol: 'none',
gridIndex: 3,
lineStyle: {
opacity: 1,
color: '#FF3232',
width: 0.5
},
markPoint: {
label: {
color: '#ffffff',
fontSize: 10,
formatter: function ({ value }: any) {
return fomatFloat(value, 2);
}
},
data: [
{
type: 'max',
symbolOffset: [0, -12] // 设置markpoint图标的位置
},
{
type: 'min',
symbolOffset: [0, 12] // 设置markpoint图标的位置
}
],
symbolSize: 0
},
markLine: {
silent: true,
symbol: 'none',
label: {
show: true,
distance: [-40, 0]
},
lineStyle: {
color: '#2B2F39',
opacity: 1,
type: 'dashed'
},
data: [
{
yAxis: close.value,
lineStyle: {
color: '#2b2f39'
},
label: {
position: 'end',
color: '#999999',
fontWeight: 'bold',
fontSize: 10,
formatter: function () {
return '0.00%';
}
}
},
{
yAxis: close.value,
lineStyle: {
color: '#2b2f39'
},
label: {
fontSize: 10,
fontWeight: 'bold',
color: '#999999',
position: 'start',
formatter: function (params: any) {
return Number(params.value).toFixed(2);
}
}
}
]
},
emphasis: {
focus: 'none',
scale: false,
disabled: 'none',
lineStyle: {
width: 1
}
}
},
{
type: 'line',
data: ratios.value,
smooth: true,
symbol: 'none',
gridIndex: 1,
xAxisIndex: 1,
yAxisIndex: 1,
lineStyle: {
width: 0
}
},
{
name: '成交量',
type: 'bar',
gridIndex: 2,
xAxisIndex: 2,
yAxisIndex: 2,
data: volumes.value,
barWidth: '50%',
itemStyle: {
color: function ({ dataIndex }: any) {
if (prices.value[dataIndex] >= prices.value[dataIndex - 1]) {
return '#F9293E';
} else {
return '#009900';
}
}
}
},
{
//坐标系
type: 'bar',
gridIndex: 3,
xAxisIndex: 3,
yAxisIndex: 3
},
{
gridIndex: 0,
// 设置涟漪特效动画
type: 'effectScatter',
// 有三种: cartesian2d(二维的直角坐标系) polar(极坐标系) geo(地理坐标系) ,此需求使用cartesian2d
coordinateSystem: 'cartesian2d',
// 单个闪烁点 ↓
data: pricesEffectScatter, //2d坐标系--[x轴, y轴, 标记大小]
// 何时显示特效:'render'-绘制完成后显示特效 'emphasis'-高亮(hover)的时候显示特效
showEffectOn: 'render',
// 涟漪特效配置
rippleEffect: {
// 波纹的绘制方式,可选'stroke'和'fill'
brushType: 'stroke'
},
// hoverAnimation: true,
itemStyle: {
color: '#F9293E',
shadowBlur: 5,
shadowColor: '#F9293E'
},
zlevel: 9
}
];
nextTick(() => {
showCharts.value = true;
});
};
const resizeTheChart = () => {
if (vchart.value) {
vchart.value.resize && vchart.value.resize();
}
};
onBeforeMount(() => {
initChart();
window.addEventListener('resize', resizeTheChart, { passive: true });
});
onBeforeUnmount(() => {
window.removeEventListener('resize', resizeTheChart);
});
</script>
<style scoped>
.stock-chart {
width: 100vw;
height: 100vh;
background-color: #141923;
}
.stock-chart-box {
position: relative;
width: 100%;
height: 6rem;
z-index: 9;
}
.fix-date {
position: absolute;
left: 0;
right: 0;
bottom: 0;
padding-left: 0.32rem;
padding-right: 0.32rem;
box-sizing: border-box;
width: 100%;
display: flex;
align-items: center;
justify-content: flex-start;
}
.fix-date > div {
color: #b5b5b6;
font-size: 0.24rem;
flex: 0 1 20%;
text-align: center;
line-height: 1;
}
</style>
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