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| <template>
| <canvas v-if="canvasId" :id="canvasId" :canvasId="canvasId" :style="{'width':cWidth*pixelRatio+'px','height':cHeight*pixelRatio+'px', 'transform': 'scale('+(1/pixelRatio)+')','margin-left':-cWidth*(pixelRatio-1)/2+'px','margin-top':-cHeight*(pixelRatio-1)/2+'px'}"
| @touchstart="touchStart" @touchmove="touchMove" @touchend="touchEnd" @error="error">
| </canvas>
| </template>
|
| <script>
| import uCharts from './u-charts.js';
| var canvases = {};
|
| export default {
| props: {
| chartType: {
| required: true,
| type: String,
| default: 'column'
| },
| opts: {
| required: true,
| type: Object,
| default () {
| return null;
| },
| },
| canvasId: {
| type: String,
| default: 'u-canvas',
| },
| cWidth: {
| default: 375,
| },
| cHeight: {
| default: 250,
| },
| pixelRatio: {
| type: Number,
| default: 1,
| },
| },
| mounted() {
| this.init();
| },
| methods: {
| init() {
| switch (this.chartType) {
| case 'column':
| this.initColumnChart();
| break;
| case 'line':
| this.initLineChart();
| break;
| default:
| break;
| }
| },
| initColumnChart() {
| canvases[this.canvasId] = new uCharts({
| $this: this,
| canvasId: this.canvasId,
| type: 'column',
| legend: true,
| fontSize: 11,
| background: '#FFFFFF',
| pixelRatio: this.pixelRatio,
| animation: true,
| categories: this.opts.categories,
| series: this.opts.series,
| enableScroll: true,
| xAxis: {
| disableGrid: true,
| itemCount: 4,
| scrollShow: true
| },
| yAxis: {
| //disabled:true
| },
| dataLabel: true,
| width: this.cWidth * this.pixelRatio,
| height: this.cHeight * this.pixelRatio,
| extra: {
| column: {
| type: 'group',
| }
| }
| });
| },
| initLineChart() {
| canvases[this.canvasId] = new uCharts({
| $this: this,
| canvasId: this.canvasId,
| type: 'line',
| fontSize: 11,
| legend: true,
| dataLabel: false,
| dataPointShape: true,
| background: '#FFFFFF',
| pixelRatio: this.pixelRatio,
| categories: this.opts.categories,
| series: this.opts.series,
| animation: true,
| enableScroll: true,
| xAxis: {
| type: 'grid',
| gridColor: '#CCCCCC',
| gridType: 'dash',
| dashLength: 8,
| itemCount: 4,
| scrollShow: true
| },
| yAxis: {
| gridType: 'dash',
| gridColor: '#CCCCCC',
| dashLength: 8,
| splitNumber: 5,
| min: 10,
| max: 180,
| format: (val) => {
| return val.toFixed(0) + '元'
| }
| },
| width: this.cWidth * this.pixelRatio,
| height: this.cHeight * this.pixelRatio,
| extra: {
| line: {
| type: 'straight'
| }
| }
| });
| },
| // 这里仅作为示例传入两个参数，cid为canvas-id,newdata为更新的数据，需要更多参数请自行修改
| changeData(cid,newdata) {
| canvases[cid].updateData({
| series: newdata.series,
| categories: newdata.categories
| });
| },
| touchStart(e) {
| canvases[this.canvasId].showToolTip(e, {
| format: function(item, category) {
| return category + ' ' + item.name + ':' + item.data
| }
| });
| canvases[this.canvasId].scrollStart(e);
| },
| touchMove(e) {
| canvases[this.canvasId].scroll(e);
| },
| touchEnd(e) {
| canvases[this.canvasId].scrollEnd(e);
| },
| error(e) {
| console.log(e)
| }
| },
| };
| </script>
|
| <style scoped>
| .charts {
| width: 100%;
| height: 100%;
| flex: 1;
| background-color: #FFFFFF;
| }
| </style>
|
|
