On my map I have some Markers. Onclick I want to get the markers address using reserve geocoding.
Here is my function:
...
google.maps.event.addListener(marker_obj[ii], 'click', function(){
show_marker_information(this);
});
...
function show_marker_information(obj){
//obj = marker
if(typeof(infowindow) != 'undefined')
infowindow.close();
var latlng_search = obj.getPosition();
var geocoder = new google.maps.Geocoder();
geocoder.geocode({
'latlng': latlng_search
},
function(results, status){
alert(results.toSource());
}
);
When clicking on a marker firebug tells me:
Unknown property <latlng>
[Break On This Error] J.toSpan=function(){return new P(this....n(d){return d==k&&c||d instanceof a}}
Any ideas?
I found my error:
geocoder.geocode({
'latlng': latlng_search
},
function(results, status){
alert(results.toSource());
}
);
there is no 'latlng' property at geocoder. it has to be 'location' instead of 'latlng'.
Related
This question already has answers here:
check if location setting has been turned off in users browser
(2 answers)
Closed 3 years ago.
I'm trying to make an HTML element visible if the end user hasn't agreed to let the browser know their location. However, my current code isn't working (nor is the console log) when declining the browser's request. But when allowing the browser to access my location, the API call to Google Places works.
To summarise: If a user declines the browser's request, I want the visibility of geolocationunavail to be visible, rather than hidden.
HTML
<div id="geolocationunavail">
<p>Don't want to share your location?</p>
<p><span>That's cool.</span> Type a location below.</p>
</div>
CSS
#geolocationunavail {
visibility: hidden;
}
JS
function getUserLocation() {
if(navigator.geolocation){
navigator.geolocation.getCurrentPosition(function(position) {
document.querySelector("#longitude").value = position.coords.longitude;
document.querySelector("#latitude").value = position.coords.latitude;
var lng = position.coords.longitude;
var lat = position.coords.latitude;
var latlng = new google.maps.LatLng(lat, lng);
var geocoder = new google.maps.Geocoder();
geocoder.geocode({ 'latLng': latlng }, function (results, status) {
if (status !== google.maps.GeocoderStatus.OK) {
alert(status);
}
if (status == google.maps.GeocoderStatus.OK) {
console.log(results);
var address = (results[0].formatted_address);
document.querySelector("#citysearch").value = address;
}
});
});
} else {
console.log("Geolocation is not supported by this browser.");
document.getElementById("geolocationunavail").style.display = "visible";
}
}
It looks like you have 2 different problems, so I will address them both:
First, your geolocation function is not working as expected. This is happening because you are not using the function correctly. You would not want to use an else statement to say that geolocation is not working, because geolocation will always "work" since it is called successfully regardless of the user input. Even if the user selects "block" the function technically "worked" and therefore will not run the else statement.
Second, your visibility is not toggling correctly. There are 2 ways you can fix this. You can either make it a class and use classList.toggle("myClass"), or you can do document.getElementById('geolocationunavil').style.visibility = 'visible';
Both of these put together will result in:
function getUserLocation() {
navigator.geolocation.getCurrentPosition(
position => {
document.querySelector("#longitude").value = position.coords.longitude;
document.querySelector("#latitude").value = position.coords.latitude;
var lng = position.coords.longitude;
var lat = position.coords.latitude;
var latlng = new google.maps.LatLng(lat, lng);
var geocoder = new google.maps.Geocoder();
geocoder.geocode({ 'latLng': latlng }, function (results, status) {
if (status !== google.maps.GeocoderStatus.OK) {
alert(status);
}
if (status == google.maps.GeocoderStatus.OK) {
console.log(results);
var address = (results[0].formatted_address);
document.querySelector("#citysearch").value = address;
}
});
},
err => {
console.log("Geolocation is not supported by this browser.");
document.getElementById("geolocationunavail").style.visibility = "visible";
})
}
I've tried to load Google Maps with marker from server using Ajax and Api.
I've tried everything but I don't know where is problem.
Map is loaded but markers are not. I also enclose picture from Postman of my Api response.
PLEASE HELP ME. I will be so glad to you.
Here is the code:
$.ajax({
type: "GET",
url: 'http://localhost:8000/api/bicykel/',
dataType: "json",
success: function (data) {
$.each(data, function (marker, data) {
var latLng = new google.maps.LatLng(data.bicykels.lat, data.bicykels.lng);
bounds.extend(latLng);
// Creating a marker and putting it on the map
var marker = new google.maps.Marker({
position: latLng,
map: map,
});
google.maps.event.addListener(marker, 'click', function () {
infoWindow.setContent("<div class='pt-5 bg-dark p-4' style='width:300px';>"+"<h3>"+data.bicykels.name+"</h3>" + " " + data.bicykels.name+"</div>");
infoWindow.open(map, marker);
});
});
},
error: function (data) {
console.log('Please refresh the page and try again');
}
});
Here is the code of Api:
def customer_get_bicykel(request):
uzivatel = request.user.id
bicykels = BicykelSerializer(
Bicykel.objects.filter(),
many = True,
context = {"request": request}
).data
return JsonResponse({"bicykels": bicykels})
And also I enclose screen of api response:
Api Response
THANK YOU FOR EVRY HELP!
You're missing out to add the marker to the map. Quoting the google maps JS docs:
// To add the marker to the map, call setMap();
marker.setMap(map);
In my AngularJS project I am using the following code to get a device's GPS co-ordinates:
// when user clicks on geo button
$scope.getGeoLocation = function() {
var geocoder = new google.maps.Geocoder();
window.navigator.geolocation.getCurrentPosition(function(position) {
$scope.$apply(function() {
$scope.position = position;
var latlng = new google.maps.LatLng($scope.position.coords.latitude, $scope.position.coords.longitude);
geocoder.geocode({'latLng': latlng}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
$scope.searchstring = results[2].formatted_address;
$location.search('s', $scope.searchstring);
$location.search('p', 1);
$location.search('geo', true);
$route.reload();
}
});
});
}, function(error) {
$scope.error = error;;
});
};
The problem is when location services is turned off on an iPhone 6, there is a no error created to inform the user that they need to turn on location services.
Does any one know how I can amend the code above to trigger an error in this scenario? Any help would be much appreciated.
As pointed out in this post Is there a way to check if geolocation has been DECLINED with Javascript?, you can pass a second callback to getCurrentPosition which will get called if the permission is declined.
Thanks for pointing me in the right direction unobf. Please find attached the code (with updated error handling) in case any one stumbles across this.
// when user clicks on geo button
$scope.getGeoLocation = function() {
var geocoder = new google.maps.Geocoder();
window.navigator.geolocation.getCurrentPosition(function(position) {
$scope.$apply(function() {
$scope.position = position;
var latlng = new google.maps.LatLng($scope.position.coords.latitude, $scope.position.coords.longitude);
geocoder.geocode({'latLng': latlng}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
$scope.searchstring = results[2].formatted_address;
$location.search('s', $scope.searchstring);
$location.search('p', 1);
$location.search('geo', true);
$route.reload();
}
});
});
}, function(error) {
$scope.error = "";
// Check for known errors
switch (error.code) {
case error.PERMISSION_DENIED:
$scope.error = "This website does not have permission to use " +
"the Geolocation API.";
alert("Geo location services appears to be disabled on your device.");
break;
case error.POSITION_UNAVAILABLE:
$scope.error = "The current position could not be determined.";
break;
case error.PERMISSION_DENIED_TIMEOUT:
$scope.error = "The current position could not be determined " +
"within the specified timeout period.";
break;
}
// If it's an unknown error, build a $scope.error that includes
// information that helps identify the situation, so that
// the error handler can be updated.
if ($scope.error == "")
{
var strErrorCode = error.code.toString();
$scope.error = "The position could not be determined due to " +
"an unknown error (Code: " + strErrorCode + ").";
}
});
};
Currently if I click on a marker, error in console shows "address undefined" but if i click it again the address shows up, why is this happening?
What my listener looks like:
map.data.addListener('click', function(event) {
var lat = event.latLng.lat();
var lng = event.latLng.lng();
function getReverseGeocodingData() {
var latlng = new google.maps.LatLng(lat, lng);
// This is making the Geocode request
var geocoder = new google.maps.Geocoder();
geocoder.geocode({ 'latLng': latlng }, function (results, status) {
if (status !== google.maps.GeocoderStatus.OK) {
alert(status);
}
// This is checking to see if the Geoeode Status is OK before proceeding
if (status == google.maps.GeocoderStatus.OK) {
console.log(results[0].formatted_address);
address = (results[0].formatted_address);
}
});
}
getReverseGeocodingData(lat, lng);
infoWindow.setContent("Address: " + address + "<br>Vehicle: " + event.feature.getProperty('deviceID')+"<br> Speed: "+event.feature.getProperty('speedKPH'));
infoWindow.setPosition(event.latLng);
infoWindow.setOptions({pixelOffset: new google.maps.Size(0,-34)});
infoWindow.open(map);
});
thank you for your time and help in advance.
geocoder.geocode works asynchronously, which means the callback will be invoked later™. You are calling this method from the synchronous method getReverseGeocodingData, and then proceed to use the address data immediately afterwards.
This can't work.
Asynchronous communication can be visualized with traditional paper mail. Imagine you send a letter to Google to get the address at x,y. After you put the letter in the postbox, you don't have the result just yet, so you can't print that sign with the address on it yet. But you can do other stuff, like repainting your house (yeah, the metaphor is stretched). You will have to be patient to wait for the answer via mail.
A few days later the mailman rings, and delivers you the answer from Mountain View. It says: "x,y is at Hauptstraße 22". Now you can start printing that sign (and this is where the metaphor ends) to the status bar of your browser.
On the other hand, you can visualize synchronous communication with phone calls. You get the answer immediately, and you can't do anything else during the call. After you hung up, you got the answer.
In JavaScript, we are pretty much stuck with the asynchronous model. If this is good or bad is not for today to decide ;-)
So thanks thriqon i understood the problem,
and have come up with this solution which i'm not sure how correct it is, but it does what i need it to do. It calls for the address once they hover over the point in the background without popping up the infowindow and when they click, tada, the address is shown in the infowindow! hope this helps some people! messsssy code
map.data.addListener('mouseover', function(event) {
var lat = event.latLng.lat();
var lng = event.latLng.lng();
function getReverseGeocodingData(lat, lng) {
var latlng = new google.maps.LatLng(lat, lng);
// This is making the Geocode request
var geocoder = new google.maps.Geocoder();
geocoder.geocode({ 'latLng': latlng }, function (results, status) {
if (status !== google.maps.GeocoderStatus.OK) {
alert(status);
}
// This is checking to see if the Geoeode Status is OK before proceeding
if (status == google.maps.GeocoderStatus.OK) {
console.log(results[0].formatted_address);
address = (results[0].formatted_address);
return address;
}
});
}
getReverseGeocodingData(lat, lng);
map.data.addListener('click', function(event) {
infoWindow.setContent("Address: " + address + "<br>Vehicle: " + event.feature.getProperty('deviceID') +"<br> Speed: "+event.feature.getProperty('speedKPH')+"<br> Heading:"+event.feature.getProperty('heading'));
infoWindow.setPosition(event.latLng);
infoWindow.setOptions({pixelOffset: new google.maps.Size(0,-34)});
infoWindow.open(map);
});
});
I am trying to use the autocomplete jquery API. The issue is I want to trigger a function or a set of code once I selected an item but i keep getting undefined items.
Here my code:
function init()
{
var input = document.getElementById('event_address');
var options =
{
types: ['geocode']
};
var autocomplete = new google.maps.places.Autocomplete(input, options);
// event triggered when drop-down option selected
select: function(event, ui) {
var address = document.getElementById(event_address).value;
geocoder.geocode( { 'address': address}, function(results, status)
{
if (status == google.maps.GeocoderStatus.OK)
{
alert(results[0].geometry.locations);
}
});
}
}
Here my errors:
Uncaught SyntaxError: Unexpected token (
Thanks
First, I believe what you are referring to is jqueryUI's autocomplete widget. The select method fires when an autocomplete selection has been made. I'm assuming what you're trying to do would be to display the coordinates of a geographical region chosen from the auto complete list.
you would need to do something like this:
$('#inputbox').autocomplete({
select: function(event, ui){
// code to get selection
var address = $('#inputbox').text();
//assuming your geocode is correct
geocoder.geocode( { 'address': address}, function(results, status)
{
if (status == google.maps.GeocoderStatus.OK)
{
alert(results[0].geometry.locations);
}
});
}
});
For more info, see the autocomplete documentation: http://api.jqueryui.com/autocomplete/#event-select