### ExampleDefaultMap2dPage 代码

```jsx
import React, {Component} from 'react'
import './ExampleDrawPage.css'
import {GIS} from "iclient3d-plot-diy";


export default class ExampleDefaultMap2dPage extends Component {

    constructor(props) {
        super(props);
        this.state = {
            htmlString: '<h3>正在加载中...</h3>',
        };
    }

    componentDidMount() {
        fetch('./example/ExampleDefaultMap2dPage.md')
            .then(response => response.text())
            .then(mdText => {
                this.setState({htmlString: window.marked.parse(mdText)});
            });
        let op = {
            code: "lddkzcqy",
            type: "lddkzcqy",
            lon: 2,
            lat: 27,
            height: 0,
            bj: 400,
            qsjd: 0,
            zzjd: 360,
            useModify: false
        }
        this.mapFunction.mapApiService.appendBh('bh', [op]);
    }

    render() {
        return (
            <div className={"example_draw_container"}>
                <h3>军标绘制拨盘功能</h3>
                <div className={"map_wrapper"}>
                    <GIS refs={
                        e => {
                            this.mapFunction = e
                        }
                    }
                         plotUrl={this.state.plotUrl}
                         mapRef={this}
                         showDefaultLayer={false}
                         map2D={true}
                    />
                </div>
                <div className={"code_wrapper"}>
                    <div dangerouslySetInnerHTML={{__html: this.state.htmlString}}></div>
                </div>
            </div>
        )
    }
}



```