php 地理位置算法,php – 使用EgMap获取用户地理位置
我目前正在使用
the EGmap extension for Yii.并且想知道如何让地图加载用户当前的地理位置？
这是我的代码：
Yii::app()->clientScript->registerScript('filterscript',"
if(navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
initialLocation = new google.maps.LatLng(position.coords.latitude,position.coords.longitude);
alert(initialLocation)
//map.setCenter(initialLocation);
}, function() {
alert(initialLocation); //alerts the lat lng
});
}
// Browser doesn't support Geolocation
else {
alert('fail');
}
",CClientScript::POS_READY);
Yii::import('ext.EGMap.*');
$gMap = new EGMap();
$gMap->zoom = 5;
$gMap->width = '100%';
$gMap->height = 200;
$mapTypeControlOptions = array(
'position'=> EGMapControlPosition::RIGHT_TOP,
'style'=>EGMap::MAPTYPECONTROL_STYLE_DEFAULT,
);
$gMap->mapTypeId = EGMap::TYPE_HYBRID;
$gMap->mapTypeControlOptions= $mapTypeControlOptions;
// Create geocoded lat and lng here
$lat = $lng ='';
// Center the map on geocoded address
$gMap->setCenter($lat, $lng);
// Add marker on geocoded address
$gMap->addMarker(
new EGMapMarker($lat, $lng)
);
$gMap->renderMap();
var map = new google.maps.Map(document.getElementById("map-canvas"), myOptions);
// Try W3C Geolocation (Preferred)
if(navigator.geolocation) {
browserSupportFlag = true;
navigator.geolocation.getCurrentPosition(function(position) {
initialLocation = new google.maps.LatLng(position.coords.latitude,position.coords.longitude);
map.setCenter(initialLocation);
}, function() {
handleNoGeolocation(browserSupportFlag);
});
}
// Browser doesn't support Geolocation
else {
browserSupportFlag = false;
handleNoGeolocation(browserSupportFlag);
}
如何将用户lat lang marker放在地图上,因为它是从扩展程序外部完成的？我甚至做得对吗？
最佳答案 首先设置jsName：
$gMap->setJsName('test_map');
然后将afterInit代码添加到renderMap调用,包括上一步的名称：
$script = "
if(navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
initialLocation = new google.maps.LatLng(position.coords.latitude,position.coords.longitude);
alert(initialLocation)
test_map.setCenter(initialLocation); //
}, function() {
alert(initialLocation); //alerts the lat lng
});
}
// Browser doesn't support Geolocation
else {
alert('fail');
}
";
Fistst参数是其他init脚本的数组：
$gMap->renderMap(array($script));
免责声明：未经测试,但应指向正确的方向:)