您当前的位置是在另一个函数内声明的，因此它基本上对所有其他函数都是不可见的。
navigator.geolocation.getCurrentPosition(function(position) {
var pos = {
lat: position.coords.latitude,
lng: position.coords.longitude
};
}, function() {
handleLocationError(true, markerme);
});
我建议计算一下你在里面的位置initMap然后将您当前的位置作为参数传递给calculateAndDisplayRoute.
function initMap() {
...
var map = new google.maps.Map(document.getElementById('map'), {
zoom: JSON.parse(zoomtp),
center: tp
});
directionsDisplay.setMap(map);
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
var pos = {
lat: position.coords.latitude,
lng: position.coords.longitude
};
calculateAndDisplayRoute(directionsService, directionsDisplay, pos);
}, function() {
handleLocationError(true, markerme);
});
} else {
// Browser doesn't support Geolocation
window.alert('Geolocation is not supported');
}
}
function calculateAndDisplayRoute(directionsService, directionsDisplay, pos) {
var latrest = <?php echo json_encode($latrest);?>;
var lngrest = <?php echo json_encode($lngrest);?>;
var rest = {lat: JSON.parse(latrest), lng: JSON.parse(lngrest)};
//var selectedMode = "WALKING";
directionsService.route({
origin: pos, // current position.
destination: rest, // restaurant.
// Note that Javascript allows us to access the constant
// using square brackets and a string value as its
// "property."
travelMode: google.maps.TravelMode.WALKING
}, function(response, status) {
if (status == 'OK') {
directionsDisplay.setDirections(response);
} else {
window.alert('Directions request failed due to ' + status);
}
});
}
