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bmap-wx.js
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/**
* @file 微信小程序JSAPI
* @author 崔健 [email protected] 2017.01.10
*/
/**
* 百度地图微信小程序API类
*
* @class
*/
class BMapWX {
/**
* 百度地图微信小程序API类
*
* @constructor
*/
constructor(param) {
this.ak = param["ak"];
this.ak2 = param["ak2"];
}
/**
* 使用微信接口进行定位
*
* @param {string} type 坐标类型
* @param {Function} success 成功执行
* @param {Function} fail 失败执行
* @param {Function} complete 完成后执行
*/
getWXLocation(type, success, fail, complete) {
type = type || 'gcj02',
success = success || function () { };
fail = fail || function () { };
complete = complete || function () { };
wx.getLocation({
type: type,
success: success,
fail: fail,
complete: complete
});
}
/**
* POI周边检索
*
* @param {Object} param 检索配置
* 参数对象结构可以参考
*
*/
search(param) {
var that = this;
param = param || {};
let searchparam = {
query: param["query"] || '生活服务$美食&酒店',
scope: param["scope"] || 1,
filter: param["filter"] || '',
coord_type: param["coord_type"] || 2,
page_size: param["page_size"] || 10,
page_num: param["page_num"] || 0,
output: param["output"] || 'json',
ak: that.ak,
sn: param["sn"] || '',
timestamp: param["timestamp"] || '',
radius: param["radius"] || 2000,
ret_coordtype: 'gcj02ll'
};
let otherparam = {
iconPath: param["iconPath"],
iconTapPath: param["iconTapPath"],
width: param["width"],
height: param["height"],
alpha: param["alpha"] || 1,
success: param["success"] || function () { },
fail: param["fail"] || function () { }
};
let type = 'gcj02';
let locationsuccess = function (result) {
searchparam["location"] = result["latitude"] + ',' + result["longitude"];
wx.request({
url: 'https://api.map.baidu.com/place/v2/search',
data: searchparam,
header: {
"content-type": "application/json"
},
method: 'GET',
success(data) {
let res = data["data"];
if (res["status"] === 0) {
let poiArr = res["results"];
// outputRes 包含两个对象，
// originalData为百度接口返回的原始数据
// wxMarkerData为小程序规范的marker格式
let outputRes = {};
outputRes["originalData"] = res;
outputRes["wxMarkerData"] = [];
for (let i = 0; i < poiArr.length; i++) {
outputRes["wxMarkerData"][i] = {
id: i,
latitude: poiArr[i]["location"]["lat"],
longitude: poiArr[i]["location"]["lng"],
title: poiArr[i]["name"],
iconPath: otherparam["iconPath"],
iconTapPath: otherparam["iconTapPath"],
address: poiArr[i]["address"],
telephone: poiArr[i]["telephone"],
alpha: otherparam["alpha"],
width: otherparam["width"],
height: otherparam["height"]
}
}
otherparam.success(outputRes);
} else {
otherparam.fail({
errMsg: res["message"],
statusCode: res["status"]
});
}
},
fail(data) {
otherparam.fail(data);
}
});
}
let locationfail = function (result) {
otherparam.fail(result);
};
let locationcomplete = function (result) {
};
if (!searchparam["location"]) {
that.getWXLocation(type, locationsuccess, locationfail, locationcomplete);
} else {
let longitude = searchparam.location.split(',')[1];
let latitude = searchparam.location.split(',')[0];
let errMsg = 'input location';
let res = {
errMsg: errMsg,
latitude: latitude,
longitude: longitude
};
locationsuccess(res);
}
}
/**
* sug模糊检索
*
* @param {Object} param 检索配置
* 参数对象结构可以参考
* http://lbsyun.baidu.com/index.php?title=webapi/place-suggestion-api
*/
suggestion(param) {
var that = this;
param = param || {};
let suggestionparam = {
query: param["query"] || '',
region: param["region"] || '全国',
city_limit: param["city_limit"] || false,
output: param["output"] || 'json',
ak: that.ak,
sn: param["sn"] || '',
timestamp: param["timestamp"] || '',
ret_coordtype: 'gcj02ll'
};
let otherparam = {
success: param["success"] || function () { },
fail: param["fail"] || function () { }
};
wx.request({
url: 'https://api.map.baidu.com/place/v2/suggestion',
data: suggestionparam,
header: {
"content-type": "application/json"
},
method: 'GET',
success(data) {
let res = data["data"];
if (res["status"] === 0) {
otherparam.success(res);
} else {
otherparam.fail({
errMsg: res["message"],
statusCode: res["status"]
});
}
},
fail(data) {
otherparam.fail(data);
}
});
}
/**
* rgc检索（坐标->地点描述）
*
* @param {Object} param 检索配置
* 参数对象结构可以参考
* http://lbsyun.baidu.com/index.php?title=webapi/guide/webservice-geocoding
*/
regeocoding(param) {
var that = this;
param = param || {};
let regeocodingparam = {
coordtype: param["coordtype"] || 'gcj02ll',
pois: param["pois"] || 0,
output: param["output"] || 'json',
ak: that.ak,
sn: param["sn"] || '',
timestamp: param["timestamp"] || '',
ret_coordtype: 'gcj02ll',
location: param["location"] || ''
};
let otherparam = {
iconPath: param["iconPath"],
iconTapPath: param["iconTapPath"],
width: param["width"],
height: param["height"],
alpha: param["alpha"] || 1,
success: param["success"] || function () { },
fail: param["fail"] || function () { }
};
let type = 'gcj02';
let locationsuccess = function (result) {
regeocodingparam["location"] = result["latitude"] + ',' + result["longitude"];
wx.request({
url: 'https://api.map.baidu.com/geocoder/v2/',
data: regeocodingparam,
header: {
"content-type": "application/json"
},
method: 'GET',
success(data) {
let res = data["data"];
if (res["status"] === 0) {
let poiObj = res["result"];
// outputRes 包含两个对象，
// originalData为百度接口返回的原始数据
// wxMarkerData为小程序规范的marker格式
let outputRes = {};
outputRes["originalData"] = res;
outputRes["wxMarkerData"] = [];
outputRes["wxMarkerData"][0] = {
id: 0,
latitude: result["latitude"],
longitude: result["longitude"],
address: poiObj["formatted_address"],
iconPath: otherparam["iconPath"],
iconTapPath: otherparam["iconTapPath"],
desc: poiObj["sematic_description"],
business: poiObj["business"],
alpha: otherparam["alpha"],
width: otherparam["width"],
height: otherparam["height"]
}
otherparam.success(outputRes);
} else {
otherparam.fail({
errMsg: res["message"],
statusCode: res["status"]
});
}
},
fail(data) {
otherparam.fail(data);
}
});
};
let locationfail = function (result) {
otherparam.fail(result);
}
let locationcomplete = function (result) {
};
if (!regeocodingparam["location"]) {
that.getWXLocation(type, locationsuccess, locationfail, locationcomplete);
} else {
let longitude = regeocodingparam.location.split(',')[1];
let latitude = regeocodingparam.location.split(',')[0];
let errMsg = 'input location';
let res = {
errMsg: errMsg,
latitude: latitude,
longitude: longitude
};
locationsuccess(res);
}
}
/**
* 地理编码
* （地址 --> 坐标）
* @author ys
*
* @param {Object} param 检索配置
* 参数对象结构可以参考
* http://lbsyun.baidu.com/index.php?title=webapi/guide/webservice-geocoding
*/
geocoding(param) {
var that = this;
param = param || {};
let geocodingparam = {
address: param["address"] || '', // 地址
coordtype: param["coordtype"] || 'gcj02ll',
output: param["output"] || 'json',
ak: that.ak,
sn: param["sn"] || '',
timestamp: param["timestamp"] || '',
ret_coordtype: 'gcj02ll',
};
let otherparam = {
iconPath: param["iconPath"],
iconTapPath: param["iconTapPath"],
width: param["width"],
height: param["height"],
alpha: param["alpha"] || 1,
success: param["success"] || function () { },
fail: param["fail"] || function () { }
};
//
let startGeocoding = function (e) {
wx.request({
url: 'https://api.map.baidu.com/geocoder/v2/',
data: geocodingparam,
header: {
"content-type": "application/json"
},
method: 'GET',
success(data) {
let res = data["data"];
if (res["status"] === 0) {
let result = res["result"];
// outputRes 包含两个对象，
// originalData为百度接口返回的原始数据
// wxMarkerData为小程序规范的marker格式
let outputRes = {};
outputRes["originalData"] = res;
outputRes["wxMarkerData"] = [];
outputRes["wxMarkerData"][0] = {
id: 0,
latitude: result["location"]['lat'],
longitude: result["location"]['lng'],
address: geocodingparam["address"],
iconPath: otherparam["iconPath"],
iconTapPath: otherparam["iconTapPath"],
desc: '',
business: '',
alpha: otherparam["alpha"],
width: otherparam["width"],
height: otherparam["height"]
}
otherparam.success(outputRes);
} else {
otherparam.fail({
errMsg: res["message"],
statusCode: res["status"]
});
}
},
fail(data) {
otherparam.fail(data);
}
});
};
////
if (geocodingparam["address"] === '') { // 地址为空
otherparam.fail({
errMsg: '搜索地址为空',
statusCode: 2 // 请求参数非法
});
} else {
startGeocoding();
}
}
/**
* 天气检索
*
* @param {Object} param 检索配置
*/
weather(param) {
var that = this;
param = param || {};
let weatherparam = {
coord_type: param["coord_type"] || 'gcj02',
output: param["output"] || 'json',
ak: that.ak,
sn: param["sn"] || '',
timestamp: param["timestamp"] || ''
};
let otherparam = {
success: param["success"] || function () { },
fail: param["fail"] || function () { }
};
let type = 'gcj02';
let locationsuccess = function (result) {
weatherparam["location"] = result["longitude"] + ',' + result["latitude"];
wx.request({
url: 'https://api.map.baidu.com/telematics/v3/weather',
data: weatherparam,
header: {
"content-type": "application/json"
},
method: 'GET',
success(data) {
let res = data["data"];
if (res["error"] === 0 && res["status"] === 'success') {
let weatherArr = res["results"];
// outputRes 包含两个对象，
// originalData为百度接口返回的原始数据
// wxMarkerData为小程序规范的marker格式
let outputRes = {};
outputRes["originalData"] = res;
outputRes["currentWeather"] = [];
outputRes["currentWeather"][0] = {
currentCity: weatherArr[0]["currentCity"],
pm25: weatherArr[0]["pm25"],
date: weatherArr[0]["weather_data"][0]["date"],
temperature: weatherArr[0]["weather_data"][0]["temperature"],
weatherDesc: weatherArr[0]["weather_data"][0]["weather"],
wind: weatherArr[0]["weather_data"][0]["wind"]
};
otherparam.success(outputRes);
} else {
otherparam.fail({
errMsg: res["message"],
statusCode: res["status"]
});
}
},
fail(data) {
otherparam.fail(data);
}
});
}
let locationfail = function (result) {
otherparam.fail(result);
}
let locationcomplete = function (result) {
}
if (!weatherparam["location"]) {
that.getWXLocation(type, locationsuccess, locationfail, locationcomplete);
} else {
let longitude = weatherparam.location.split(',')[0];
let latitude = weatherparam.location.split(',')[1];
let errMsg = 'input location';
let res = {
errMsg: errMsg,
latitude: latitude,
longitude: longitude
};
locationsuccess(res);
}
}
/**
* 静态图
*
* @author ys
*
* @param {Object} param 检索配置
* http://lbsyun.baidu.com/index.php?title=static
*/
getStaticImage(param) {
var that = this;
param = param || {};
let staticimageparam = {
ak: that.ak2,
width: param["width"] || 400,
height: param["height"] || 300,
center: param["center"] || '北京', // 地址或者经纬度
scale: param["scale"] || 1, // 是否为高清图 返回图片大小会根据此标志调整。取值范围为1或2。 1表示返回的图片大小为size= width *height; 2表示返回图片为(width*2)*(height *2)，且zoom加1 注：如果zoom为最大级别，则返回图片为（width*2）*（height*2），zoom不变。
zoom: param["zoom"] || 11, //高清图范围[3, 18]；0低清图范围[3,19]
copyright: param["copyright"] || 1, // 0表示log+文字描述样式，1表示纯文字描述样式
markers: param["markers"] || null, // 标注，可通过经纬度或地址/地名描述；多个标注之间用竖线分隔
};
return "http://api.map.baidu.com/staticimage/v2?" + "ak=" + staticimageparam["ak"] + "&width=" + staticimageparam["width"] + "&height=" + staticimageparam["height"] + "¢er=" + staticimageparam["center"] + "&zoom=" + staticimageparam["zoom"] + "&scale=" + staticimageparam["scale"] + "©right=" + staticimageparam["copyright"];
}
}
module.exports.BMapWX = BMapWX;