需要:
应用 react 实现相似如下的可视化画拓扑图的界面
剖析
能够看出次要性能点有
1. 可视化拖拽组件
2. 绘制节点和门路
经查阅,找到了与需要非常靠近的组件
GGEditor
这是由阿里的一位大佬写的开源的可视化图编辑器,能够实现绘制节点和门路的性能,反对罕用快捷键,如 ctrl+c,ctrl+v,delete 等,成果如下图:
demo 地址
应用
简略地介绍完须要的库后,开始应用。
1. 创立一个名为 demo 的 react 我的项目,为了不便,我将应用 typescript 语言
npx create-react-app demo --typescript
2. 装置 GGEditor
npm install gg-editor --save
3. 为了不便开发,能够应用热更新插件 react-refresh,参考此处
4. 首先,删除 demo/src 目录下不必要的文件
5. 画流程图
index.js
import React from 'react';
import ReactDOM from 'react-dom';
import GGEditor, {Flow} from 'gg-editor';
// 数据
const data = {
nodes: [
{
id: '0',
label: '点 1',
x: 55,
y: 55,
},
{
id: '1',
label: '点 2',
x: 55,
y: 255,
},
],
edges: [
{
label: '边 1',
source: '0',
target: '1',
},
],
};
class App extends React.Component {render() {
return (
<GGEditor>
<Flow style={{width: 500, height: 500}} data={data} />
</GGEditor> );
}
}
ReactDOM.render(<App />, document.getElementById('root'));
6. 带命令工具栏
import React from 'react';
import ReactDOM from 'react-dom';
import GGEditor, {Command, ContextMenu, Flow, constants} from 'gg-editor';
import styles from './index.less';
import {Icon} from '@ant-design/compatible';
import {Divider, Tooltip} from 'antd';
import upperFirst from 'lodash/upperFirst';
const {EditorCommand} = constants;
const IconFont = Icon.createFromIconfontCN({scriptUrl: 'https://at.alicdn.com/t/font_1518433_oa5sw7ezue.js',});
const FLOW_COMMAND_LIST = [
EditorCommand.Undo,
EditorCommand.Redo,
'|',
EditorCommand.Copy,
EditorCommand.Paste,
EditorCommand.Remove,
'|',
EditorCommand.ZoomIn,
EditorCommand.ZoomOut,
];
const flowData = {
nodes: [
{
id: '0',
label: 'Node',
x: 50,
y: 50,
},
{
id: '1',
label: 'Node',
x: 50,
y: 200,
},
],
edges: [
{
label: 'Label',
source: '0',
sourceAnchor: 1,
target: '1',
targetAnchor: 0,
},
],
};
function App() {
return (
<GGEditor>
<div className={styles.toolbar}>
{FLOW_COMMAND_LIST.map((name, index) => {if (name === '|') {return <Divider key={index} type="vertical" />;
}
return (<Command key={name} name={name} className={styles.command} disabledClassName={styles.commandDisabled}>
<Tooltip title={upperFirst(name)}>
<IconFont type={`icon-${name}`} />
</Tooltip> </Command> );
})}
</div>
<Flow className={styles.graph} data={flowData} />
{/* <Mind className={styles.graph} data={mindData} /> */}
<ContextMenu
renderContent={(item, position, hide) => {const { x: left, y: top} = position;
return (<div className={styles.contextMenu} style={{position: 'absolute', top, left}}>
{[EditorCommand.Undo, EditorCommand.Redo, EditorCommand.PasteHere].map(name => {
return (<Command key={name} name={name} className={styles.command} disabledClassName={styles.commandDisabled}>
<div onClick={hide}>
<IconFont type={`icon-${name}`} />
<span>{upperFirst(name)}</span>
</div> </Command> );
})}
</div>
);
}}
/>
</GGEditor> );
}
ReactDOM.render(<App />, document.getElementById('root'));
7. 节点提供栏
import React from 'react';
import ReactDOM from 'react-dom';
import GGEditor, {Flow, Item, ItemPanel} from 'gg-editor';
import styles from './index.less';
const data = {
nodes: [
{
id: '0',
label: 'Node',
x: 50,
y: 50,
},
{
id: '1',
label: 'Node',
x: 50,
y: 200,
},
],
edges: [
{
label: 'Label',
source: '0',
sourceAnchor: 1,
target: '1',
targetAnchor: 0,
},
],
};
function App() {
return (
<GGEditor>
<ItemPanel className={styles.itemPanel}>
<Item className={styles.item}
model={{
type: 'circle',
size: 50,
label: 'circle',
}}
>
<img src="https://gw.alicdn.com/tfs/TB1IRuSnRr0gK0jSZFnXXbRRXXa-110-112.png"
width="55"
height="56"
draggable={false}
/>
</Item> <Item className={styles.item}
model={{
type: 'rect',
size: [80, 24],
label: 'rect',
}}
>
<img src="https://gw.alicdn.com/tfs/TB1reKOnUT1gK0jSZFrXXcNCXXa-178-76.png"
width="89"
height="38"
draggable={false}
/>
</Item> <Item className={styles.item}
model={{
type: 'ellipse',
size: [100, 50],
label: 'ellipse',
}}
>
<img src="https://gw.alicdn.com/tfs/TB1AvmVnUH1gK0jSZSyXXXtlpXa-216-126.png"
width="108"
height="63"
draggable={false}
/>
</Item> <Item className={styles.item}
model={{
type: 'diamond',
size: [80, 80],
label: 'diamond',
}}
>
<img src="https://gw.alicdn.com/tfs/TB1EB9VnNz1gK0jSZSgXXavwpXa-178-184.png"
width="89"
height="92"
draggable={false}
/>
</Item> <Item className={styles.item}
model={{
type: 'triangle',
size: [30, 30],
label: 'triangle',
}}
>
<img src="https://gw.alicdn.com/tfs/TB12sC2nKH2gK0jSZJnXXaT1FXa-126-156.png"
width="63"
height="78"
draggable={false}
/>
</Item> </ItemPanel> <Flow className={styles.graph} data={data} />
</GGEditor> );
}
ReactDOM.render(<App />, document.getElementById('root'));
然而,但这里就呈现问题了,itempanel 画进去的节点并没有能够连贯的锚点,通过检索,找官网文档,发现一大半曾经删除了
github 上有人也遇到了和我一样的问题,然而基本没有人回应
直到我在检索到这句话时,所有都明确了
看来官网仿佛也把这个我的项目放弃了,一不小心就踩了一个大坑啊。
总结
这个组件,在官网展现的例子上有十分简洁实用的示例,但在我初步上手后发现文档完好非常重大,遇到问题齐全无奈解决,除非读代码,对 react 老手及其不敌对,且 antv 官网仿佛都有放弃的痕迹,非大佬不能应用。