//加载门店
function queryStoreList(id){
showLoad();
var search = $("#search").val();
var cityId = $("#cityId").val();
if(id !=null && id !=''){
cityId=id;
}
$.ajax({
url:ctx+"/weixin/store/queryStoreList",
data:{
wechatId : ${param.wechatId},
search : search,
cityId : cityId
},
success:function(data){
hideLoad();
if(data != null && data.length > 0){
var html = "";
$.each(data,function(i,a){//计算距离 //$.each(data,function(i,a){ 【data对象也可以写在$(data).each(function(i,a){ 方法体 })】 })循环
var distance=getFlatternDistance(a.latitude,a.longitude,nowLat,nowLng);//getFlatternDistance函数 根据两个地点之间的经纬度算出距离
distance=distance.toFixed(0); //保留小数点后面的位数
a.distance=distance;
})
data=data.sort(function(a,b){//按照路程从小到大排序 //data.sort(function(a,b){ 【data.sort(参数序列) 】 默认是正序 })
return a.distance-b.distance;
});
$.each(data,function(i,a){
html += "<div class='list_ce clearfix'>";//class='list_ce' clearfix' 类选择器作为样式选择了，在CSS这两哥样式做了定义，clearFix有去除浮标的作用，防止模块位移
html += "<ul class='clearfix'>";
html += "<li class='one'><img src='${res}/upload/"+a.wechatId+"/"+a.image+"'></li>";
html += "<li class='two'>";
var dis=Number(a.distance);
if(dis >1000){
dis=dis/1000
dis=dis+"千米";
}else{
dis=dis+"米";
}
html += "<h2>"+a.name+ dis+"
<span><a href='tel:"+a.phone+"'><img src='${res}/template/002/images/m2.png'></a></span></h2>";
html += "<p class='fonts'>地址："+a.address+"
</p>";
html += "<p class='ft'>电话：
<a href='tel:"+a.phone+"'>"+a.phone+"
</a></p>";
html += "</li>";
html += "<li class='tre'>";
html += "<p onclick='goGps("+a.id+")'><img src='${res}/template/002/images/m1.png'></p>";
html += "</li>";
html += "</ul>";
html += "</div>";
html += "<div class='bres'></div>";
})
$("#menuList").empty().append(html); //清空后重新赋值
}else{
}
}
})
}
函数：
getFlatternDistance根据两个地点的位置的经纬度获取距离
var nowLng;
var nowLat;
var EARTH_RADIUS = 6378137.0; //单位M
var PI = Math.PI;
function getRad(d){
return d*PI/180.0;
}
//根据俩地经纬度计算距离
function getFlatternDistance(lat1,lng1,lat2,lng2){
var f = getRad(parseFloat(lat1 + lat2)/2);
var g = getRad(parseFloat(lat1 - lat2)/2);
var l = getRad(parseFloat(lng1 - lng2)/2);
var sg = Math.sin(g);
var sl = Math.sin(l);
var sf = Math.sin(f);
var s,c,w,r,d,h1,h2;
var a = EARTH_RADIUS;
var fl = 1/298.257;
sg = sg*sg;
sl = sl*sl;
sf = sf*sf;
s = sg*(1-sl) + (1-sf)*sl;
c = (1-sg)*(1-sl) + sf*sl;
w = Math.atan(Math.sqrt(s/c));
r = Math.sqrt(s*c)/w;
d = 2*w*a;
h1 = (3*r -1)/2/c;
h2 = (3*r +1)/2/s;
return d*(1 + fl*(h1*sf*(1-sg) - h2*(1-sf)*sg));
}
获取当前位置的经纬度
// 百度地图定位功能
function queryLocation(){
var map = new BMap.Map("allmap");
var point = new BMap.Point(116.331398,39.897445); //设置初始中心点
var geolocation = new BMap.Geolocation(); //获得当前位置的对象
geolocation.getCurrentPosition(function(r){
if(this.getStatus() == BMAP_STATUS_SUCCESS){
var mk = new BMap.Marker(r.point);
nowLng=r.point.lng;
nowLat=r.point.lat;
}
else {
alert('failed'+this.getStatus());
}
},{enableHighAccuracy: true})
}
转载于:https://www.cnblogs.com/flytogalaxy/p/6958853.html
