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44b8bb8a65
| Author | SHA1 | Date |
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[liang]
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44b8bb8a65 | 3 years ago |
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[liang]
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279789f8ca | 3 years ago |
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[liang]
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88d070852e | 3 years ago |
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[liang]
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6c2bd0e017 | 3 years ago |
6 changed files with 924 additions and 441 deletions
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<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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|
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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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|
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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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|
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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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|
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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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}, |
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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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|
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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> |
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.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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|
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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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