add 思维导图demo

This commit is contained in:
赵霄
2023-09-05 18:08:28 +08:00
parent 7b44d3ed5a
commit ff11f74725
7 changed files with 485 additions and 2 deletions
+252
View File
@@ -0,0 +1,252 @@
<template>
<div :id="domId" class="mind-map"></div>
</template>
<script>
import G6 from '@antv/g6'
// 收起图标
const COLLAPSE_ICON = function COLLAPSE_ICON (x, y, r) {
return [['M', x, y], ['a', r, r, 0, 1, 0, r * 2, 0], ['a', r, r, 0, 1, 0, -r * 2, 0], ['M', x + 2, y], ['L', x + 2 * r - 2, y]]
}
// 展开图标
const EXPAND_ICON = function EXPAND_ICON (x, y, r) {
return [['M', x, y], ['a', r, r, 0, 1, 0, r * 2, 0], ['a', r, r, 0, 1, 0, -r * 2, 0], ['M', x + 2, y], ['L', x + 2 * r - 2, y], ['M', x + r, y - r + 2], ['L', x + r, y + r - 2]]
}
// 节点的颜色
const NODE_COLOR = [
{
bg: '#E9ECF0',
stroke: '#3D557B',
color: '#2F466B'
},
{
bg: '#EEF4F8',
stroke: '#739FC8',
color: '#227CCF'
},
{
bg: '#FEF1EA',
stroke: '#F9964F',
color: '#DF7426'
},
{
bg: '#E5F2F4',
stroke: '#2596A1',
color: '#2596A1'
}
]
// 节点和收起展开之间的间距
const NODE_ICON_MARGIN = 8
export default {
name: 'MindMap',
props: {
// 页面元素的id
domId: {
type: String,
required: false,
default: 'mountNode'
},
// 图表的数据
mapData: {
type: Object,
required: false,
default: () => {
return {}
}
},
// 图数据的key字段
mapDataKeyField: {
type: String,
required: false,
default: 'id'
},
// 回显文本取的字段
labelField: {
type: String,
required: false,
default: 'name'
},
// 节点的宽度
nodeWidth: {
type: Number,
required: false,
default: 300
},
// 节点高度
nodeHeight: {
type: Number,
required: false,
default: 46
},
// 收起展开节点图标的半径
expendCollapseIconR: {
type: Number,
required: false,
default: 8
}
},
data () {
return {
data: {}
}
},
watch: {
mapData: {
handler () {
this.data = JSON.parse(JSON.stringify(this.mapData))
this.$nextTick(() => {
this.initMindMap()
})
},
deep: true,
immediate: true
}
},
methods: {
initMindMap () {
G6.registerNode('tree-node', {
drawShape: (cfg, group) => {
const nodeColorIndex = cfg.depth % NODE_COLOR.length
const nodeStyle = NODE_COLOR[nodeColorIndex]
// 节点整体的内容
const nodeContainer = group.addShape('rect', {})
// 实际显示的边框,由三部分组成,左右两侧是两个圆,中间用两个矩形覆盖,一个有边框,另一个没有边框,没有边框这个高小一点,宽大一点
group.addShape('circle', {
attrs: {
x: this.nodeHeight / 2,
y: this.nodeHeight / 2,
r: this.nodeHeight / 2,
stroke: nodeStyle.stroke,
fill: nodeStyle.bg
}
})
group.addShape('circle', {
attrs: {
x: this.nodeWidth - this.nodeHeight / 2,
y: this.nodeHeight / 2,
r: this.nodeHeight / 2,
stroke: nodeStyle.stroke,
fill: nodeStyle.bg
}
})
group.addShape('rect', {
attrs: {
x: this.nodeHeight / 2,
y: 0,
width: this.nodeWidth - this.nodeHeight,
height: this.nodeHeight,
stroke: nodeStyle.stroke,
fill: nodeStyle.bg
}
})
group.addShape('rect', {
attrs: {
x: this.nodeHeight / 2 - 3,
y: 0.5,
width: this.nodeWidth - this.nodeHeight + 6,
height: this.nodeHeight - 1,
fill: nodeStyle.bg
}
})
// 文本的部分
let textContent = cfg.name || ''
if (textContent.length > 40) {
textContent = textContent.slice(0, 20) + '\n' + textContent.slice(20, 40) + '\n' + textContent.slice(40)
} else if (textContent.length > 20) {
textContent = textContent.slice(0, 20) + '\n' + textContent.slice(20)
}
group.addShape('text', {
attrs: {
text: textContent,
x: this.nodeWidth / 2,
y: this.nodeHeight / 2,
textAlign: 'center',
textBaseline: 'middle',
fill: nodeStyle.color
}
})
const hasChildren = cfg.children && cfg.children.length > 0
if (hasChildren) {
// 展开收起
group.addShape('marker', {
attrs: {
x: this.nodeWidth + NODE_ICON_MARGIN,
y: this.nodeHeight / 2,
r: this.expendCollapseIconR,
symbol: COLLAPSE_ICON,
stroke: '#666',
lineWidth: 2
},
className: 'collapse-icon'
})
}
nodeContainer.attr({
x: 0,
y: 0,
width: this.nodeWidth + this.expendCollapseIconR + NODE_ICON_MARGIN,
height: this.nodeHeight,
})
return nodeContainer
}
}, 'single-shape')
const graph = new G6.TreeGraph({
container: this.domId,
modes: {
default: [{
type: 'collapse-expand',
onChange: function onChange (item, collapsed) {
const data = item.get('model')
const icon = item.get('group').findByClassName('collapse-icon')
if (collapsed) {
icon.attr('symbol', EXPAND_ICON)
} else {
icon.attr('symbol', COLLAPSE_ICON)
}
data.collapsed = collapsed
return true
}
}, 'drag-canvas', 'zoom-canvas']
},
defaultNode: {
type: 'tree-node',
anchorPoints: [[0, 0.5], [1, 0.5]]
},
defaultEdge: {
type: 'cubic-horizontal',
style: {
stroke: '#A3B1BF'
}
},
layout: {
type: 'compactBox',
direction: 'LR',
getId: (d) => {
return d.id
},
getVGap: () => {
return 20
},
getHGap: () => {
return 300
}
}
})
G6.Util.traverseTree(this.data, (item) => {
item.id = item[this.mapDataKeyField]
})
graph.data(this.data)
graph.render()
graph.fitView()
}
}
}
</script>
<style scoped lang="less">
.mind-map {
width: 100%;
height: 100%;
}
</style>