TreeSeries.js
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/**
* @file Create data struct and define tree view's series model
*/
import SeriesModel from '../../model/Series';
import Tree from '../../data/Tree';
import {encodeHTML} from '../../util/format';
export default SeriesModel.extend({
type: 'series.tree',
layoutInfo: null,
// can support the position parameters 'left', 'top','right','bottom', 'width',
// 'height' in the setOption() with 'merge' mode normal.
layoutMode: 'box',
/**
* Init a tree data structure from data in option series
* @param {Object} option the object used to config echarts view
* @return {module:echarts/data/List} storage initial data
*/
getInitialData: function (option) {
//create an virtual root
var root = {name: option.name, children: option.data};
var leaves = option.leaves || {};
var treeOption = {};
treeOption.leaves = leaves;
var tree = Tree.createTree(root, this, treeOption);
var treeDepth = 0;
tree.eachNode('preorder', function (node) {
if (node.depth > treeDepth) {
treeDepth = node.depth;
}
});
var expandAndCollapse = option.expandAndCollapse;
var expandTreeDepth = (expandAndCollapse && option.initialTreeDepth >= 0)
? option.initialTreeDepth : treeDepth;
tree.root.eachNode('preorder', function (node) {
var item = node.hostTree.data.getRawDataItem(node.dataIndex);
// add item.collapsed != null, because users can collapse node original in the series.data.
node.isExpand = (item && item.collapsed != null)
? !item.collapsed
: node.depth <= expandTreeDepth;
});
return tree.data;
},
/**
* Make the configuration 'orient' backward compatibly, with 'horizontal = LR', 'vertical = TB'.
* @returns {string} orient
*/
getOrient: function () {
var orient = this.get('orient');
if (orient === 'horizontal') {
orient = 'LR';
}
else if (orient === 'vertical') {
orient = 'TB';
}
return orient;
},
/**
* @override
* @param {number} dataIndex
*/
formatTooltip: function (dataIndex) {
var tree = this.getData().tree;
var realRoot = tree.root.children[0];
var node = tree.getNodeByDataIndex(dataIndex);
var value = node.getValue();
var name = node.name;
while (node && (node !== realRoot)) {
name = node.parentNode.name + '.' + name;
node = node.parentNode;
}
return encodeHTML(name + (
(isNaN(value) || value == null) ? '' : ' : ' + value
));
},
defaultOption: {
zlevel: 0,
z: 2,
// the position of the whole view
left: '12%',
top: '12%',
right: '12%',
bottom: '12%',
// the layout of the tree, two value can be selected, 'orthogonal' or 'radial'
layout: 'orthogonal',
// The orient of orthoginal layout, can be setted to 'LR', 'TB', 'RL', 'BT'.
// and the backward compatibility configuration 'horizontal = LR', 'vertical = TB'.
orient: 'LR',
symbol: 'emptyCircle',
symbolSize: 7,
expandAndCollapse: true,
initialTreeDepth: 2,
lineStyle: {
color: '#ccc',
width: 1.5,
curveness: 0.5
},
itemStyle: {
color: 'lightsteelblue',
borderColor: '#c23531',
borderWidth: 1.5
},
label: {
show: true,
color: '#555'
},
leaves: {
label: {
show: true
}
},
animationEasing: 'linear',
animationDuration: 700,
animationDurationUpdate: 1000
}
});