feat：新增地图模块，用于查找附近设备场地
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+78
-90
@@ -1,10 +1,10 @@
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// 高德静态地图API工具类
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const AMAP_KEY = '4c513a688938fd89b88b296e867f66ec'
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// 腾讯静态地图API工具类
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const QQMAP_KEY = 'RO5BZ-ECZ63-7US3C-RT5QW-TIDZE-2FF35'
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class StaticMapUtil {
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constructor() {
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this.key = AMAP_KEY
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this.baseUrl = 'https://restapi.amap.com/v3/staticmap'
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this.key = QQMAP_KEY
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this.baseUrl = 'https://apis.map.qq.com/ws/staticmap/v2/'
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}
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/**
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@@ -14,54 +14,40 @@ class StaticMapUtil {
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*/
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generateMapUrl(options = {}) {
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const defaultOptions = {
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location: '116.397128,39.916527', // 默认中心点（北京）
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zoom: 13, // 缩放级别
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size: '750*500', // 图片尺寸
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scale: 2, // 高清显示
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markers: [], // 标记点
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labels: [], // 文字标注
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paths: [], // 路径
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traffic: 0, // 交通路况 0-不显示 1-显示
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format: 'png' // 图片格式
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center: '39.916527,116.397128', // 默认中心点（北京）
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zoom: 13, // 缩放级别
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size: '750*500', // 图片尺寸
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scale: 2, // 高清显示
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markers: [], // 标记点
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labels: [], // 文字标注
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paths: [], // 路径
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traffic: 0, // 交通路况 0-不显示 1-显示
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format: 'png' // 图片格式
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}
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const config = { ...defaultOptions, ...options }
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let url = `${this.baseUrl}?key=${this.key}`
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url += `&location=${config.location}`
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url += `¢er=${config.center}`
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url += `&zoom=${config.zoom}`
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url += `&size=${config.size}`
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url += `&scale=${config.scale}`
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url += `&traffic=${config.traffic}`
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url += `&format=${config.format}`
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// 添加标记点
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// 腾讯地图添加标记点
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if (config.markers && config.markers.length > 0) {
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const markersStr = config.markers.map(marker => {
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let markerStr = ''
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if (marker.size) markerStr += `size:${marker.size}|`
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if (marker.color) markerStr += `color:${marker.color}|`
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if (marker.label) markerStr += `label:${marker.label}|`
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markerStr += `${marker.longitude},${marker.latitude}`
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return markerStr
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}).join('|')
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url += `&markers=${encodeURIComponent(markersStr)}`
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config.markers.forEach((marker, index) => {
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url += `&markers=size:${marker.size || 'medium'}|color:${marker.color || '0x2196F3'}|label:${marker.label || ' '}|${marker.latitude},${marker.longitude}`
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})
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}
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// 添加文字标注
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if (config.labels && config.labels.length > 0) {
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const labelsStr = config.labels.map(label => {
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let labelStr = ''
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if (label.content) labelStr += `content:${label.content}|`
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if (label.font) labelStr += `font:${label.font}|`
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if (label.bold) labelStr += `bold:${label.bold}|`
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if (label.fontSize) labelStr += `fontSize:${label.fontSize}|`
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if (label.fontColor) labelStr += `fontColor:${label.fontColor}|`
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if (label.background) labelStr += `background:${label.background}|`
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labelStr += `${label.longitude},${label.latitude}`
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return labelStr
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// 添加路径
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if (config.paths && config.paths.length > 0) {
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const pathsStr = config.paths.map(path => {
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let pathStr = `color:${path.color || '0xFF0000'}|weight:${path.weight || 5}|`
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pathStr += path.points.map(point => `${point.latitude},${point.longitude}`).join(';')
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return pathStr
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}).join('|')
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url += `&labels=${encodeURIComponent(labelsStr)}`
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url += `&path=${encodeURIComponent(pathsStr)}`
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}
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return url
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@@ -86,13 +72,13 @@ class StaticMapUtil {
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const markers = positions.map((position, index) => ({
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longitude: parseFloat(position.longitude),
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latitude: parseFloat(position.latitude),
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size: 'mid',
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color: position.status === 'online' ? 'green' : 'red',
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size: 'medium',
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color: position.status === 'online' ? '0x4CAF50' : '0xF44336',
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label: String.fromCharCode(65 + (index % 26)) // A, B, C...
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}))
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return this.generateMapUrl({
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location: `${center.longitude},${center.latitude}`,
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center: `${center.latitude},${center.longitude}`,
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zoom: zoom,
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markers: markers,
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...options
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@@ -114,14 +100,23 @@ class StaticMapUtil {
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return { longitude: 116.397128, latitude: 39.916527 }
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}
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const sum = validPositions.reduce((acc, pos) => ({
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longitude: acc.longitude + parseFloat(pos.longitude),
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latitude: acc.latitude + parseFloat(pos.latitude)
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}), { longitude: 0, latitude: 0 })
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if (validPositions.length === 1) {
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return {
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longitude: parseFloat(validPositions[0].longitude),
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latitude: parseFloat(validPositions[0].latitude)
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}
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}
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let sumLat = 0
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let sumLng = 0
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validPositions.forEach(position => {
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sumLat += parseFloat(position.latitude)
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sumLng += parseFloat(position.longitude)
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})
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return {
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longitude: (sum.longitude / validPositions.length).toFixed(6),
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latitude: (sum.latitude / validPositions.length).toFixed(6)
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latitude: sumLat / validPositions.length,
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longitude: sumLng / validPositions.length
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}
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}
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@@ -132,63 +127,56 @@ class StaticMapUtil {
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* @returns {Number} 缩放级别
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*/
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calculateOptimalZoom(positions, center) {
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if (positions.length <= 1) return 15
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if (!positions || positions.length <= 1) {
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return 13 // 默认缩放级别
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}
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const validPositions = positions.filter(p => p.longitude && p.latitude)
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if (validPositions.length <= 1) return 15
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if (validPositions.length <= 1) {
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return 13
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}
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// 计算最大距离
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let maxDistance = 0
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validPositions.forEach(pos => {
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const distance = this.getDistance(
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validPositions.forEach(position => {
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const distance = this.calculateHaversineDistance(
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center.latitude, center.longitude,
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parseFloat(pos.latitude), parseFloat(pos.longitude)
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parseFloat(position.latitude), parseFloat(position.longitude)
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)
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maxDistance = Math.max(maxDistance, distance)
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})
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// 根据最大距离确定缩放级别
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if (maxDistance < 1) return 16 // 1km内
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if (maxDistance < 2) return 15 // 2km内
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if (maxDistance < 5) return 14 // 5km内
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if (maxDistance < 10) return 13 // 10km内
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if (maxDistance < 20) return 12 // 20km内
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if (maxDistance < 50) return 11 // 50km内
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return 10 // 50km以上
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// 基于距离计算缩放级别
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if (maxDistance > 10) return 10 // 10km以上
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if (maxDistance > 5) return 11 // 5-10km
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if (maxDistance > 2) return 12 // 2-5km
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if (maxDistance > 1) return 13 // 1-2km
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if (maxDistance > 0.5) return 14 // 500m-1km
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if (maxDistance > 0.2) return 15 // 200-500m
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return 16 // 200m以内
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}
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/**
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* 计算两点间距离（公里）
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* @param {Number} lat1 纬度1
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* @param {Number} lng1 经度1
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* @param {Number} lat2 纬度2
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* @param {Number} lng2 经度2
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* @param {Number} lat1 第一点纬度
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* @param {Number} lng1 第一点经度
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* @param {Number} lat2 第二点纬度
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* @param {Number} lng2 第二点经度
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* @returns {Number} 距离（公里）
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*/
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getDistance(lat1, lng1, lat2, lng2) {
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const radLat1 = lat1 * Math.PI / 180.0
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const radLat2 = lat2 * Math.PI / 180.0
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const a = radLat1 - radLat2
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const b = lng1 * Math.PI / 180.0 - lng2 * Math.PI / 180.0
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let s = 2 * Math.asin(Math.sqrt(Math.pow(Math.sin(a / 2), 2) + Math.cos(radLat1) * Math.cos(radLat2) * Math.pow(Math.sin(b / 2), 2)))
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s = s * 6378.137
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s = Math.round(s * 10000) / 10000
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return s
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}
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/**
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* 预加载地图图片
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* @param {String} mapUrl 地图URL
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* @returns {Promise} 图片加载Promise
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*/
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preloadMapImage(mapUrl) {
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return new Promise((resolve, reject) => {
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const img = new Image()
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img.onload = () => resolve(mapUrl)
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img.onerror = reject
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img.src = mapUrl
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})
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calculateHaversineDistance(lat1, lng1, lat2, lng2) {
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const R = 6371 // 地球半径（公里）
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const dLat = (lat2 - lat1) * Math.PI / 180
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const dLng = (lng2 - lng1) * Math.PI / 180
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const a = Math.sin(dLat/2) * Math.sin(dLat/2) +
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Math.cos(lat1 * Math.PI / 180) * Math.cos(lat2 * Math.PI / 180) *
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Math.sin(dLng/2) * Math.sin(dLng/2)
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const c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a))
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return R * c
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}
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}
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export default new StaticMapUtil()
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// 导出实例
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module.exports = new StaticMapUtil()
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