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Charts.ts 3.94 KiB
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  • // Import modules
    import * as am4charts from "@amcharts/amcharts4/charts";
    import * as am4core from "@amcharts/amcharts4/core";
    import am4themes_material from "@amcharts/amcharts4/themes/material";
    
    const drawPieChart = (chartDivId: string, dataUrl: string | null): void => {
      // Create chart instance
      const chart = am4core.create(chartDivId, am4charts.PieChart);
      am4core.percent(100);
    
      // Set theme
      am4core.useTheme(am4themes_material);
    
      chart.innerRadius = am4core.percent(10);
    
      // Add data
      chart.dataSource.url = dataUrl || "";
      chart.dataSource.parser.options.emptyAs = 0;
    
      // Add and configure Series
      const pieSeries = chart.series.push(new am4charts.PieSeries());
      pieSeries.dataFields.value = "values";
      pieSeries.dataFields.category = "labels";
    
      pieSeries.slices.template.stroke = am4core.color("#ffffff");
      pieSeries.slices.template.strokeWidth = 1;
      pieSeries.slices.template.strokeOpacity = 1;
      pieSeries.labels.template.disabled = true;
      pieSeries.ticks.template.disabled = true;
    
      chart.legend = new am4charts.Legend();
      chart.legend.position = "right";
      chart.legend.scrollable = true;
    };
    
    const drawXYChart = (chartDivId: string, dataUrl: string | null): void => {
      // Create chart instance
      const chart = am4core.create(chartDivId, am4charts.XYChart);
      am4core.percent(100);
    
      // Set theme
      am4core.useTheme(am4themes_material);
    
      // Create axes
      const dateAxis = chart.xAxes.push(new am4charts.DateAxis());
      dateAxis.renderer.minGridDistance = 60;
    
      chart.yAxes.push(new am4charts.ValueAxis());
    
      // Add data
      chart.dataSource.url = dataUrl || "";
      chart.dataSource.parser.options.emptyAs = 0;
    
      // Create series
      const series = chart.series.push(new am4charts.LineSeries());
      series.dataFields.valueY = "values";
      series.dataFields.dateX = "labels";
      series.tooltipText = "{valueY} downloads";
    
      series.tooltip.pointerOrientation = "vertical";
    
      chart.cursor = new am4charts.XYCursor();
      chart.cursor.snapToSeries = series;
      chart.cursor.xAxis = dateAxis;
    
      chart.scrollbarX = new am4core.Scrollbar();
    };
    
    const drawXYSeriesChart = (
      chartDivId: string,
      dataUrl: string | null
    ): void => {
      // Create chart instance
      const chart = am4core.create(chartDivId, am4charts.XYChart);
      am4core.percent(100);
    
      // Set theme
      am4core.useTheme(am4themes_material);
    
      // Create axes
      chart.xAxes.push(new am4charts.ValueAxis());
      chart.yAxes.push(new am4charts.ValueAxis());
    
      // Add data
      chart.dataSource.url = dataUrl || "";
      chart.dataSource.parser.options.emptyAs = 0;
    
      // Create series
      const series1 = chart.series.push(new am4charts.LineSeries());
      series1.dataFields.valueX = "X";
      series1.dataFields.valueY = "aY";
    
      const series2 = chart.series.push(new am4charts.LineSeries());
      series2.dataFields.valueX = "X";
      series2.dataFields.valueY = "bY";
    
      const series3 = chart.series.push(new am4charts.LineSeries());
      series3.dataFields.valueX = "X";
      series3.dataFields.valueY = "cY";
    
      const series4 = chart.series.push(new am4charts.LineSeries());
      series4.dataFields.valueX = "X";
      series4.dataFields.valueY = "dY";
    
      const series5 = chart.series.push(new am4charts.LineSeries());
      series5.dataFields.valueX = "X";
      series5.dataFields.valueY = "eY";
    };
    
    const DrawCharts = (): void => {
      const chartDivs: NodeListOf<HTMLDivElement> = document.querySelectorAll(
        "div[data-chart-type]"
      );
    
      for (let i = 0; i < chartDivs.length; i++) {
        const chartDiv: HTMLDivElement = chartDivs[i];
        const chartType = chartDiv.dataset.chartType;
        switch (chartType) {
          case "pie-chart":
            drawPieChart(chartDiv.id, chartDiv.getAttribute("data-chart-url"));
            break;
          case "xy-chart":
            drawXYChart(chartDiv.id, chartDiv.getAttribute("data-chart-url"));
            break;
          case "xy-series-chart":
            drawXYSeriesChart(chartDiv.id, chartDiv.getAttribute("data-chart-url"));
            break;
          default:
            console.error("Unknown chart type:" + chartType);
        }
      }
    };
    
    export default DrawCharts;