@uiw/react-baidu-map-type-control

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macOS"><img alt="Palette Genius" height="52" width="52" src="https://wangchujiang.com/appicon/palette-genius.png"></a> <a target="_blank" href="https://apps.apple.com/app/6470879005" title="Symbol Scribe for macOS"><img alt="Symbol Scribe" height="52" width="52" src="https://wangchujiang.com/appicon/symbol-scribe.png"></a> <br/> </div> <hr> MapTypeControl 地图类型控件 === [![Buy me a coffee](https://img.shields.io/badge/Buy%20me%20a%20coffee-048754?logo=buymeacoffee)](https://jaywcjlove.github.io/#/sponsor) [![npm version](https://img.shields.io/npm/v/@uiw/react-baidu-map-type-control.svg)](https://www.npmjs.com/package/@uiw/react-baidu-map-type-control) [![Downloads](https://img.shields.io/npm/dm/@uiw/react-baidu-map-type-control.svg?style=flat)](https://www.npmjs.com/package/@uiw/react-baidu-map-type-control) 地图类型控件。你也可以使用 `Map` 组件 `widget` 属性来设置控件更方便。 ```jsx import { MapTypeControl, useMapTypeControl } from '@uiw/react-baidu-map'; // 或者单独安装使用 import MapTypeControl, { useMapTypeControl } from '@uiw/react-baidu-map-type-control'; ``` ⚠️ 这个类型控件是属于老的地图控件，加载新的 3D 地图控件[实例](http://lbsyun.baidu.com/jsdemo.htm#webgl2_1)，需要设置参数 `type=webgl&v=1.0` 并且需要自己实现。 ```js // <script type="text/javascript" src="//api.map.baidu.com/api?type=webgl&v=1.0&ak=您的密钥"></script> // GL版命名空间为 BMapGL // 按住鼠标右键，修改倾斜角和角度 var map = new BMapGL.Map("allmap"); // 创建Map实例 map.centerAndZoom(new BMapGL.Point(116.404, 39.915), 11); // 初始化地图,设置中心点坐标和地图级别 map.enableScrollWheelZoom(true); //开启鼠标滚轮缩放 var navi3DCtrl = new BMapGL.NavigationControl3D(); // 添加3D控件 map.addControl(navi3DCtrl); ``` 在组件上传递参数 `type="webgl"`，此时 `window.BMap` 对象为 `undefined`，在组件中做了自动处理 `window.BMap = window.BMapGL`。 ```jsx <APILoader akay="eYpCTECSntZmw0WyoQ7zFpCRR9cpgHFG" type="webgl" version="1.0" > <Map /> </APILoader> ``` ### 基本用法 ```jsx mdx:preview import React from 'react'; import { useState, useRef } from 'react'; import { Map, APILoader, MapTypeControl } from '@uiw/react-baidu-map'; const Example = () => { const [show, setShow] = useState(true); return ( <> <button onClick={() => setShow(!show)}> {show ? '关闭' : '开启'} </button> <Map zoom={13} style={{ height: 350 }}> {show && ( <MapTypeControl /> )} <MapTypeControl visiable={show} offset={new BMap.Size(40, 40)} anchor={BMAP_ANCHOR_TOP_RIGHT} /> </Map> </> ); } const Demo = () => ( <div style={{ width: '100%' }}> <APILoader akay="eYpCTECSntZmw0WyoQ7zFpCRR9cpgHFG"> <Example /> </APILoader> </div> ); export default Demo; ``` ### 使用 hooks `mapTypeControl`, `setMapTypeControl` ```jsx mdx:preview import React from 'react'; import { useRef, useEffect, useState } from 'react'; import { Map, APILoader, Provider, useMap, useMapTypeControl } from '@uiw/react-baidu-map'; const Example = () => { const divElm = useRef(null); const [show, setShow] = useState(true); const { setContainer, map } = useMap(); const { mapTypeControl } = useMapTypeControl({ map, anchor: BMAP_NAVIGATION_CONTROL_LARGE, visiable: show, }); useEffect(() => { if (divElm.current && !map) { setContainer(divElm.current); } }, [map]); return ( <> <button onClick={() => setShow(!show)}> {show ? '关闭' : '开启'} </button> <div ref={divElm} style={{ height: 350 }} /> </> ); } const Demo = () => ( <div style={{ width: '100%' }}> <APILoader akay="eYpCTECSntZmw0WyoQ7zFpCRR9cpgHFG"> <Provider> <Example /> </Provider> </APILoader> </div> ); export default Demo; ``` ### Props | 参数 | 说明 | 类型 | 默认值 | | ----- | ----- | ----- | ----- | | visiable | 覆盖物是否可见。 | `boolean` | - | | anchor | 控件的位置偏移值。| `ControlAnchor` | `BMAP_ANCHOR_TOP_RIGHT` | | offset | 控件的水平偏移值。 | `BMap.Size` | - | | type | 设置比例尺单位制 | `BMap.MapTypeControlType` | - | | mapTypes | 设置比例尺单位制 | `MapType[]` | - | ### BMap.MapTypeControlType 常量表示长度单位制。 | 常量 | 值 | 描述 | | ----- | ----- | ----- | | BMAP_MAPTYPE_CONTROL_HORIZONTAL | `0` | 按钮水平方式展示，默认采用此类型展示 | | BMAP_MAPTYPE_CONTROL_DROPDOWN | `1` | 按钮呈下拉列表方式展示 | | BMAP_MAPTYPE_CONTROL_MAP | `2` | 以图片方式展示类型控件，设置该类型后无法指定maptypes属性 |