Highlight clicked ForceDirectedTree node
This demo shows how we can use events and states to apply different look for the last clicked ForceDirectedNode.
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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/ * --------------------------------------- */
// Themes beginam4core.useTheme(am4themes_animated);// Themes end
var chart = am4core.create("chartdiv", am4plugins_forceDirected.ForceDirectedTree);var networkSeries = chart.series.push(new am4plugins_forceDirected.ForceDirectedSeries());
chart.data = [ { name: "Core", children: [ { name: "First", children: [ { name: "A1", value: 100 }, { name: "A2", value: 60 } ] },
{ name: "Second", children: [ { name: "B1", value: 135 }, { name: "B2", value: 98 } ] },
{ name: "Third", children: [ { name: "C1", children: [ { name: "EE1", value: 130 }, { name: "EE2", value: 87 }, { name: "EE3", value: 55 } ] },
{ name: "C2", value: 148 }, { name: "C3", children: [ { name: "CC1", value: 53 }, { name: "CC2", value: 30 } ] },
{ name: "C4", value: 26 } ] },
{ name: "Fourth", children: [ { name: "D1", value: 415 }, { name: "D2", value: 148 }, { name: "D3", value: 89 } ] },
{ name: "Fifth", children: [ { name: "E1", children: [ { name: "EE1", value: 33 }, { name: "EE2", value: 40 }, { name: "EE3", value: 89 } ] },
{ name: "E2", value: 148 } ] } ] }];
networkSeries.dataFields.value = "value";networkSeries.dataFields.name = "name";networkSeries.dataFields.children = "children";networkSeries.nodes.template.tooltipText = "{name}:{value}";networkSeries.nodes.template.fillOpacity = 1;networkSeries.nodes.template.togglable = false;
networkSeries.manyBodyStrength = -20;networkSeries.links.template.strength = 0.8;networkSeries.minRadius = am4core.percent(2);
networkSeries.nodes.template.label.text = "{name}";networkSeries.fontSize = 10;
var hl = networkSeries.nodes.template.states.create("selected");hl.properties.fill = am4core.color("#c55");
var selectedNode;networkSeries.nodes.template.events.on("hit", function (ev) { if (selectedNode == ev.target) { selectedNode.fill = selectedNode.defaultState.properties.fill; selectedNode = undefined; } else { if (selectedNode) { selectedNode.fill = selectedNode.defaultState.properties.fill; } selectedNode = ev.target; selectedNode.setState("selected"); }});<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: 550px;}highlight-clicked-forcedirectedtree-node