Togglable event markers using axis ranges
This demo shows how you can use chart’s API to toggle axis ranges on and off .
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/** * --------------------------------------- * This demo was created using amCharts 4. * * For more information visit: * https://www.amcharts.com/ * * Documentation is available at: * https://www.amcharts.com/docs/v4/ * --------------------------------------- */
am4core.useTheme(am4themes_animated);
// Create chart instancevar chart = am4core.create("chartdiv", am4charts.XYChart);
// Add datachart.data = [ { date: new Date(2018, 0, 1), value: 450, value2: 362, value3: 699 }, { date: new Date(2018, 0, 2), value: 269, value2: 450, value3: 841 }, { date: new Date(2018, 0, 3), value: 700, value2: 358, value3: 699 }, { date: new Date(2018, 0, 4), value: 490, value2: 367, value3: 500 }, { date: new Date(2018, 0, 5), value: 500, value2: 485, value3: 369 }, { date: new Date(2018, 0, 6), value: 550, value2: 354, value3: 250 }, { date: new Date(2018, 0, 7), value: 420, value2: 350, value3: 600 }];
// Create axesvar dateAxis = chart.xAxes.push(new am4charts.DateAxis());dateAxis.renderer.grid.template.location = 0.5;dateAxis.renderer.minGridDistance = 30;
var valueAxis = chart.yAxes.push(new am4charts.ValueAxis());
// Create seriesfunction createSeries(field, name) { var series = chart.series.push(new am4charts.LineSeries()); series.dataFields.valueY = field; series.dataFields.dateX = "date"; series.name = name; series.tooltipText = "{dateX}: [b]{valueY}[/]"; series.strokeWidth = 2;
var bullet = series.bullets.push(new am4charts.CircleBullet()); bullet.circle.stroke = am4core.color("#fff"); bullet.circle.strokeWidth = 2;}
createSeries("value", "Series #1");createSeries("value2", "Series #2");createSeries("value3", "Series #3");
chart.legend = new am4charts.Legend();chart.cursor = new am4charts.XYCursor();
function createEvent(date) { var range = dateAxis.axisRanges.create(); range.date = date; range.grid.strokeOpacity = 1; range.grid.stroke = am4core.color("#c00");}
createEvent(new Date(2018, 0, 2, 1));createEvent(new Date(2018, 0, 2, 4));createEvent(new Date(2018, 0, 2, 11));createEvent(new Date(2018, 0, 3, 12));createEvent(new Date(2018, 0, 3, 14));createEvent(new Date(2018, 0, 4, 9));createEvent(new Date(2018, 0, 4, 15));createEvent(new Date(2018, 0, 4, 17));createEvent(new Date(2018, 0, 5, 17));createEvent(new Date(2018, 0, 5, 20));
function toggleMarkers() { dateAxis.axisRanges.each(function (range) { range.grid.disabled = !range.grid.disabled; });}<input type="button" value="toggle event markers" onclick="toggleMarkers()" /><div id="chartdiv"></div>body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";}
#chartdiv { width: 100%; height: 250px;}togglable-event-markers-using-axis-ranges