var nodes = null, index = 0;
var option = {
series: [{
type: 'tree',
left: '2%',
right: '2%',
top: '10%',
bottom: '10%',
symbol: 'roundRect',
symbolSize: 50,
label: { fontSize: 30 },
animation: false,
orient: 'vertical',
initialTreeDepth: -1,
lineStyle: { width: 10, color: 'green' },
data: [{
name: 'AA',
children: [{
name: 'BB',
children: [{
name: 'CC'
}, {
name: 'DD',
},
{
name: 'EE',
children: [
{ name: 'EE1' },
{ name: 'EE2' }
]
}
]
}]
}]
}]
};
myChart.setOption(option);
nodes = option.series[0].data;
setTimeout(changeNode, 100);
function changeNode() {
if (index >= nodes.length) {
if (nodes[index - 1].children) {
nodes = nodes[index - 1].children;
} else {
nodes = option.series[0].data;
}
index = 0;
}
var node = nodes[index];
index++;
if (node.name.substring(0, 1) != ' ') {
node.name = ' ' + node.name + ' ';
} else {
flag = 1;
node.name = node.name.substring(1, node.name.length - 1);
}
node.lineStyle = { color: getColor(), width: 15 };
myChart.setOption(option, true, false);
setTimeout(changeNode, 100);
}
function getColor() {
return '#' + [Math.floor(Math.random() * 255), Math.floor(Math.random() * 255), Math.floor(Math.random() * 255)].map(item => { var item = '0' + item.toString(16); return item.substring(item.length - 2); }).join('');
}