我的问题很简单。
我需要heading
值来了解如何定位POV。
sv.getPanoramaByLocation()
会返回一个data
变量,其中包含两个箭头的heading
,您可以在哪个方向前进。
然而,它没有给出heading
值来查看建筑物的方式。 然而可以在街景视图中使用标记来定位您的建筑物! example
任何人都可以帮我吗?我可以做任何人想要的转储。
答案 0 :(得分:4)
对您要“查看”的建筑物的地址进行地理编码。使用geometry library computeHeading(from:LatLng,to:LatLng)用于计算StreetView位置和建筑物之间的标题。
(假设地理编码器返回“屋顶”地理编码)
另一个选项,请使用路线服务:
related question: Request main road StreetView panoramas instead of back alleys from API
使用路线服务获取道路上的位置以用于街景“相机”位置的代码段(现在可以更好地恢复“内部”街景位置):
var map;
var berkeley = new google.maps.LatLng(37.869085, -122.254775);
var sv = new google.maps.StreetViewService();
var geocoder = new google.maps.Geocoder();
var directionsService = new google.maps.DirectionsService();
var panorama;
var myLatLng;
var address = "525 Beacon St. Boston, MA";
function initialize() {
panorama = new google.maps.StreetViewPanorama(document.getElementById("pano"));
directionsService.route({
origin: address,
destination: address,
travelMode: google.maps.TravelMode.DRIVING
}, function(response, status) {
if (status == google.maps.DirectionsStatus.OK) {
// myLatLng = response.routes[0].legs[0].start_location;
sv.getPanoramaByLocation(response.routes[0].legs[0].start_location, 50, processSVData);
var marker = new google.maps.Marker({
position: response.routes[0].legs[0].start_location,
map: map,
title: "Directions"
});
map.setCenter(myLatLng);
} else document.getElementById('info').innerHTML += "status:"+status+"<br>";
});
geocoder.geocode({
'address': address
}, geocoderCallback);
// Set up the map
var myOptions = {
zoom: 15
};
map = new google.maps.Map(document.getElementById('map_canvas'),
myOptions);
}
google.maps.event.addDomListener(window, 'load', initialize);
function processSVData(data, status) {
if (status == google.maps.StreetViewStatus.OK) {
panorama.setPano(data.location.pano);
var camera = new google.maps.Marker({
position: data.location.latLng,
map: map,
draggable: true,
title: "camera"
});
var heading = google.maps.geometry.spherical.computeHeading(data.location.latLng, myLatLng);
document.getElementById('info').innerHTML += "heading:"+heading+"<br>"
+ "location: "+myLatLng.toUrlValue(6)+"<br>"
+ "camera:"+data.location.latLng.toUrlValue(6)+"<br>";
// alert(data.location.latLng+":"+myLatLng+":"+heading);
panorama.setPov({
heading: heading,
pitch: 0,
zoom: 1
});
panorama.setVisible(true);
} else {
alert("Street View data not found for this location.");
}
}
function geocoderCallback(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
myLatLng = results[0].geometry.location;
map.setCenter(myLatLng);
if (results[0].geometry.viewport) map.fitBounds(results[0].geometry.viewport);
else if (results[0].geometry.bounds) map.fitBounds(results[0].geometry.bounds);
else map.setZoom(15);
var marker = new google.maps.Marker({
position: myLatLng,
map: map,
title: address
});
} else {
alert("Geocode was not successful for the following reason: " + status);
}
};
html,
body {
height: 100%;
margin: 0;
padding: 0;
}
#map_canvas {
height: 100%;
}
<script src="http://maps.googleapis.com/maps/api/js?libraries=geometry"></script>
<div id="pano" style="width: 425px; height: 400px;float:left"></div>
<div id="info"></div>
<div id="map_canvas" style="width: 425px; height: 400px;float:left"></div>
<div id="map_center"></div>
<div id="streetview_pov"></div>