根据地址使用Google Maps API显示房屋的街景 [英] Use Google Maps API to display Street View of a house based on an address
问题描述
我尝试使用Google地图根据地址显示房屋的街景。我根据 jsfiddle .nz / js / using-google-maps-to-show-a-streetview-a-house-based-on-an-address /rel =nofollow> tutorial 。小提琴正在努力显示默认的初始地址,但我无法弄清楚当按下按钮时如何将新地址传递到街景代码。
这里是HTML:
< h3>输入地址以查看街景视图< / h3>
< form action =/method =POST>
< textarea name ='new_address'class =address>多伦多150 Glen Road< / textarea>
< input type =submitid =change_streetvalue =更改街景视图地址/>
< / form>
< div class =map_container>
< div id =map_canvas_cont>
< div id =map_canvas>< / div>
< / div>
< div id =pano_cont>
< div id =pano>< / div>
< / div>
< / div>
这里是javascript:
var panorama;
var addLatLng;
var showPanoData;
var panorama;
函数load_map_and_street_view_from_address(地址){
var geocoder = new google.maps.Geocoder();
geocoder.geocode({
'address':address
},function(results,status){
if(status == google.maps.GeocoderStatus.OK){
var gps = results [0] .geometry.location;
create_map_and_streetview(gps.lat(),gps.lng(),'map_canvas','pano');
}
});
}
函数create_map_and_streetview(lat,lng,map_id,street_view_id){
全景=新google.maps.StreetViewPanorama(document.getElementById(pano)) );
addLatLng = new google.maps.LatLng(lat,lng);
var service = new google.maps.StreetViewService();
service.getPanoramaByLocation(addLatLng,50,showPanoData);
var myOptions = {
zoom:14,
center:addLatLng,
mapTypeId:google.maps.MapTypeId.ROADMAP,
backgroundColor:'transparent ',
streetViewControl:false,
keyboardShortcuts:false
}
var map = new google.maps.Map(document.getElementById(map_id),myOptions);
var marker = new google.maps.Marker({
map:map,
animation:google.maps.Animation.DROP,
position:addLatLng
}) ;
$ b函数showPanoData(panoData,status){
if(status!= google.maps.StreetViewStatus.OK){
$(' (''没有StreetView图片可用')。attr('style','text-align:center; font-weight:bold')。show();
return;
}
var angle = computeAngle(addLatLng,panoData.location.latLng);
var panoOptions = {
位置:addLatLng,
addressControl:false,$ b $ linkControl:false,
panControl:false,
zoomControlOptions: {
style:google.maps.ZoomControlStyle.SMALL
},
pov:{
heading:angle,
pitch:10,
zoom:1
},
enableCloseButton:false,
visible:true
};
panorama.setOptions(panoOptions);
}
函数computeAngle(endLatLng,startLatLng){
var DEGREE_PER_RADIAN = 57.2957795;
var RADIAN_PER_DEGREE = 0.017453;
var dlat = endLatLng.lat() - startLatLng.lat();
var dlng = endLatLng.lng() - startLatLng.lng();
var yaw = Math.atan2(dlng * Math.cos(endLatLng.lat()* RADIAN_PER_DEGREE),dlat)* DEGREE_PER_RADIAN;
return wrapAngle(yaw);
}
函数wrapAngle(angle){
if(angle> = 360){
angle - = 360;
} else if(angle <0){
angle + = 360;
}
返回角度;
$ b $(文件).ready(函数(){
load_map_and_street_view_from_address(多伦多格伦路150号);
$('点击(功能(){
alert(如何将新地址传递到街景代码?);
});
} );
有人可以向我解释如何解决这个 jsfiddle ,这样我可以通过按钮按下新的地址?谢谢。
可能有多种解决方案,我建议存储maps,marker和panorama-instances,然后您只需要在进一步的调用中更新其属性,而不是创建新的实例。
调用按钮单击的函数:
load_map_and_street_view_from_address($('textarea [name =new_address]')。val());
替换为 create_map_and_streetview
& showPanoData
:
函数create_map_and_streetview(lat,lng,map_id,street_view_id) {
var goo = google.maps,
map = $('#'+ map_id),
pano = document.getElementById(pano),
addLatLng = new goo .LatLng(lat,lng),
myOptions = {
zoom:14,
center:addLatLng,
mapTypeId:goo.MapTypeId.ROADMAP,
backgroundColor:'透明',
streetViewControl:false,
keyboardShortcuts:false
}
if(!map.data('gmap')){
//存储实例每个$ .data
map.data('gmap',new goo.MVCObject());
map.data('gmap')。set('panorama',new goo.StreetViewPanorama(pano));
map.data('gmap')。set('service',new goo.StreetViewService());
map.data('gmap')。set('map',new goo.Map(map [0],myOptions));
map.data('gmap')。set('marker',new goo.Marker({
map:map.data('gmap')。get('map'),
动画:goo.Animation.DROP,
位置:addLatLng
})
);
} else {
map.data('gmap')。get('map')。setCenter(addLatLng);
map.data('gmap')。get('marker')。setPosition(addLatLng);
//总是创建新的全景图
//否则只要没有图片可用,全景图就会被破坏
map.data('gmap')。set('panorama',新goo.StreetViewPanorama(pano));
$ b map.data('gmap')。get('service')
.getPanoramaByLocation(addLatLng,50,function(panoData,status){
if(status!= google.maps.StreetViewStatus.OK){
$('#pano')。html('No StreetView Picture Available')
.attr('style','text-align :center; font-weight:bold')。show();
return;
}
var angle = computeAngle(addLatLng,panoData.location.latLng);
var panoOptions = {
position:addLatLng,
addressControl:false,$ b $ linkControl:false,
panControl:false,
zoomControlOptions:{
style :google.maps.ZoomControlStyle.SMALL
},
pov:{
heading:angle,
pitch:10,
zoom:1
},
enableCloseButton:false,
visible:true
};
map.data('g地图)得到(全景)setOptions(panoOptions)。
});
$ hr
$ b 演示: http://jsfiddle.net/R59mB/4/ p>
I am trying to use Google Maps to display a streetview of a house based on an address. I have created a jsfiddle based on this tutorial. The fiddle is working to display the default, initial address, but I cannot figure out how to pass the new address into the street view code when the button is pressed.
Here is the HTML:
<h3>Enter an Address to view the street view</h3>
<form action="/" method="POST">
<textarea name='new_address' class="address">150 Glen Road, Toronto</textarea>
<input type="submit" id="change_street" value="Change Street View Address" />
</form>
<div class="map_container">
<div id="map_canvas_cont">
<div id="map_canvas"></div>
</div>
<div id="pano_cont">
<div id="pano"></div>
</div>
</div>
And here is the javascript:
var panorama;
var addLatLng;
var showPanoData;
var panorama;
function load_map_and_street_view_from_address(address) {
var geocoder = new google.maps.Geocoder();
geocoder.geocode({
'address': address
}, function (results, status) {
if (status == google.maps.GeocoderStatus.OK) {
var gps = results[0].geometry.location;
create_map_and_streetview(gps.lat(), gps.lng(), 'map_canvas', 'pano');
}
});
}
function create_map_and_streetview(lat, lng, map_id, street_view_id) {
panorama = new google.maps.StreetViewPanorama(document.getElementById("pano"));
addLatLng = new google.maps.LatLng(lat, lng);
var service = new google.maps.StreetViewService();
service.getPanoramaByLocation(addLatLng, 50, showPanoData);
var myOptions = {
zoom: 14,
center: addLatLng,
mapTypeId: google.maps.MapTypeId.ROADMAP,
backgroundColor: 'transparent',
streetViewControl: false,
keyboardShortcuts: false
}
var map = new google.maps.Map(document.getElementById(map_id), myOptions);
var marker = new google.maps.Marker({
map: map,
animation: google.maps.Animation.DROP,
position: addLatLng
});
}
function showPanoData(panoData, status) {
if (status != google.maps.StreetViewStatus.OK) {
$('#pano').html('No StreetView Picture Available').attr('style', 'text-align:center;font-weight:bold').show();
return;
}
var angle = computeAngle(addLatLng, panoData.location.latLng);
var panoOptions = {
position: addLatLng,
addressControl: false,
linksControl: false,
panControl: false,
zoomControlOptions: {
style: google.maps.ZoomControlStyle.SMALL
},
pov: {
heading: angle,
pitch: 10,
zoom: 1
},
enableCloseButton: false,
visible: true
};
panorama.setOptions(panoOptions);
}
function computeAngle(endLatLng, startLatLng) {
var DEGREE_PER_RADIAN = 57.2957795;
var RADIAN_PER_DEGREE = 0.017453;
var dlat = endLatLng.lat() - startLatLng.lat();
var dlng = endLatLng.lng() - startLatLng.lng();
var yaw = Math.atan2(dlng * Math.cos(endLatLng.lat() * RADIAN_PER_DEGREE), dlat) * DEGREE_PER_RADIAN;
return wrapAngle(yaw);
}
function wrapAngle(angle) {
if (angle >= 360) {
angle -= 360;
} else if (angle < 0) {
angle += 360;
}
return angle;
}
$(document).ready(function () {
load_map_and_street_view_from_address("150 Glen Road, Toronto");
$('#change_street').click(function () {
alert("How do I pass the new address to the street view code?");
});
});
Can someone please explain to me how to fix this jsfiddle so that I can pass a new address with the button press? Thank you.
解决方案 There may be multiple solutions, I would suggest to store the maps-, marker and panorama-instances, then you only need to update their properties on further calls instead of creating new instances.
calling the function on button-click:
load_map_and_street_view_from_address($('textarea[name="new_address"]').val());
replacement for create_map_and_streetview
& showPanoData
:
function create_map_and_streetview(lat, lng, map_id, street_view_id) {
var goo=google.maps,
map=$('#'+map_id),
pano=document.getElementById("pano"),
addLatLng = new goo.LatLng(lat, lng),
myOptions = {
zoom: 14,
center: addLatLng,
mapTypeId: goo.MapTypeId.ROADMAP,
backgroundColor: 'transparent',
streetViewControl: false,
keyboardShortcuts: false
}
if(!map.data('gmap')){
//store the instances per $.data
map.data('gmap',new goo.MVCObject());
map.data('gmap').set('panorama',new goo.StreetViewPanorama(pano));
map.data('gmap').set('service',new goo.StreetViewService());
map.data('gmap').set('map',new goo.Map(map[0], myOptions));
map.data('gmap').set('marker',new goo.Marker({
map: map.data('gmap').get('map'),
animation: goo.Animation.DROP,
position: addLatLng
})
);
}else{
map.data('gmap').get('map').setCenter(addLatLng);
map.data('gmap').get('marker').setPosition(addLatLng);
//always create a new panorama
//otherwise the panorama will be broken as soon as there is no picture available
map.data('gmap').set('panorama',new goo.StreetViewPanorama(pano));
}
map.data('gmap').get('service')
.getPanoramaByLocation(addLatLng, 50, function(panoData, status){
if (status != google.maps.StreetViewStatus.OK) {
$('#pano').html('No StreetView Picture Available')
.attr('style', 'text-align:center;font-weight:bold').show();
return;
}
var angle = computeAngle(addLatLng, panoData.location.latLng);
var panoOptions = {
position: addLatLng,
addressControl: false,
linksControl: false,
panControl: false,
zoomControlOptions: {
style: google.maps.ZoomControlStyle.SMALL
},
pov: {
heading: angle,
pitch: 10,
zoom: 1
},
enableCloseButton: false,
visible: true
};
map.data('gmap').get('panorama').setOptions(panoOptions);
});
}
Demo: http://jsfiddle.net/R59mB/4/
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