我在网页上有这个简单的脚本,加载一个小的kml文件,但是当我添加地理位置时,它总是将地图置于当前位置的中心位置。 我想加载以kml文件为中心的地图。用户位置应仅在他位于kml区域内时显示,或者如果他将地图拖动到他所在的区域。 附带有没有办法用javascript(maps api 3)轻松刷新地图上的用户位置,而无需重新定位地图?
var map;
function initialize() {
var centre = new google.maps.LatLng(4,4);
var mapOptions = {
zoom: 11,
center: centre
}
map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
var ctaLayer = new google.maps.KmlLayer({
url: 'http://www.server.com/kmlfile.kml',
preserveViewport: false
});
ctaLayer.setMap(map);
if(navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
var pos = new google.maps.LatLng(position.coords.latitude,
position.coords.longitude);
var infowindow = new google.maps.InfoWindow({
map: map,
position: pos,
content: 'Location found using HTML5.'
});
// map.setCenter(pos);
}, function() {
handleNoGeolocation(true);
});
}
}
function handleNoGeolocation(errorFlag) {
if (errorFlag) {
var content = 'Error: The Geolocation service failed.';
} else {
var content = 'Error: Your browser doesn\'t support geolocation.';
}
var options = {
map: map,
position: new google.maps.LatLng(60, 105),
content: content
};
var infowindow = new google.maps.InfoWindow(options);
map.setCenter(options.position);
}
google.maps.event.addDomListener(window, 'load', initialize);
所以,这是我的最新更新,我向infoWindow添加了disableAutoPan:true选项,如图所示,并刷新用户位置 watchPosition 代替 getCurrentPosition ,与 setPosition 一起移动infoWindow位置:
var map;
function initialize() {
var center_map = new google.maps.LatLng(45,-4);
var mapOptions = {
zoom: 11,
center: centre
}
map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
var ctaLayer = new google.maps.KmlLayer({
url: 'http://www.server.com/kmlfile.kml', preserveViewport: false
});
var ctaLayer.setMap(map);
if(navigator.geolocation) {
navigator.geolocation.watchPosition(function(position) {
var pos = new google.maps.LatLng(position.coords.latitude, position.coords.longitude);
if(typeof infowindow == "undefined") {
infowindow = new google.maps.InfoWindow({
disableAutoPan: true,
map: map, position: pos,
content: 'Your position',
zIndex: 0 /* not needed */
});
}
else {
infowindow.setPosition(pos);
}
}, function() {
/*handleNoGeolocation(true);*/
/* had to delete this because errors centered the map on North Pole */
},
{ timeout: 10000, enableHighAccuracy: true }); /* high accuracy for tests */
}
};
google.maps.event.addDomListener(window, 'load', initialize);
显然它有效,虽然我认为它非常原始......
答案 0 :(得分:1)
当您打开InfoWindow
时,它正在平移地图以显示它。在InfoWindowOptions
中将disableAutoPan
设为true。
var infowindow = new google.maps.InfoWindow({
map: map,
position: pos,
content: 'Location found using HTML5.',
disableAutoPan: true
});
代码段
var map;
function initialize() {
var centre = new google.maps.LatLng(4, 4);
var mapOptions = {
zoom: 11,
center: centre
}
map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
var ctaLayer = new google.maps.KmlLayer({
url: 'http://www.geocodezip.com/geoxml3_test/cta.xml',
preserveViewport: false
});
ctaLayer.setMap(map);
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
var pos = new google.maps.LatLng(position.coords.latitude,
position.coords.longitude);
var infowindow = new google.maps.InfoWindow({
disableAutoPan: true,
map: map,
position: pos,
content: 'Location found using HTML5.'
});
// map.setCenter(pos);
}, function() {
handleNoGeolocation(true);
});
}
}
function handleNoGeolocation(errorFlag) {
if (errorFlag) {
var content = 'Error: The Geolocation service failed.';
} else {
var content = 'Error: Your browser doesn\'t support geolocation.';
}
var options = {
map: map,
position: new google.maps.LatLng(60, 105),
content: content,
disableAutoPan: true
};
var infowindow = new google.maps.InfoWindow(options);
// map.setCenter(options.position);
}
google.maps.event.addDomListener(window, 'load', initialize);
html,
body,
#map-canvas {
height: 100%;
width: 100%;
margin: 0px;
padding: 0px
}
<script src="https://maps.googleapis.com/maps/api/js"></script>
<div id="map-canvas"></div>