Ember.js: Google Maps View - google-maps-api-3

I'm trying to create a View for Google Maps, and actually got it to work according to some examples I found.
the problem is that the map draws correctly only the first time the page is displayed,
if routes are changed and then a map is being drawn again it looks "distorted".
the examples I found are "one page" part of apps.
View:
App.LocationView = Ember.View.extend({
templateName: 'location',
MapView: Ember.View.extend({
map: null,
latitudeBinding: 'controller.content.geometry.lat',
longitudeBinding: 'controller.content.geometry.lng',
didInsertElement: function() {
var mapOptions = {
center: new google.maps.LatLng(0, 0),
zoom: 16,
mapTypeId: google.maps.MapTypeId.ROADMAP,
mapTypeControl: false
};
var map = new google.maps.Map(this.$().get(0),mapOptions);
this.set('map',map); //save for future updations
this.$().css({ width: "550px", height: "400px" });
},
reRenderMap : function(){
var newLoc = new google.maps.LatLng(this.get('latitude'), this.get('longitude'));
this.get('map').setCenter(newLoc);
var marker = new google.maps.Marker({
position: new google.maps.LatLng(this.get('latitude'), this.get('longitude')),
map: this.get('map')
});
}.observes('latitude','longitude')
})
});
I show the map with {{view view.MapView}} inside a div#map-holder, in my 'location' template.
I also apply this CSS to the div to "fix" Bootstrap messing with the map controls:
#map-holder img {
max-width: none;
}
how can I fix this ?
EDIT: jsfiddle - http://jsfiddle.net/bsphere/jYfg3/
go to 'settings' and then back to 'map' to see the distorted map

It seems like this is not exactly related to Ember, but to the map redrawing and resizing. With your fiddle, if you resize the browser window, you can see the map displays correctly.
When I saw it, I tried to put the this.$().css({ width: "550px", height: "400px" }); before the contrusction of the map, and it seems to work.

Related

Google map with css "transform:scale"

Good afternoon,
I have an issue with a google map and css "transform:scale".
My aim is to scale the map to 1.1 if the map is hovered. But if i do this i cant click the markern anymore. I have tried to solve it with jquery but i got no success.
Anybody here who has a solution?
Here is a fiddle: JSFIDDLE
I tought that first switch the scaled size, then load the map, and then switch to old size will get it to work, but no success.
Here is my abortive try..
$("#map").hover(function(){
$("#map").width(880).height(617.1).load('/index.html', function () {
initialize();
}).width(800).height(561);
});
Thanks for helping
Manuel Strohmaier
The problem is quite easy to explain, but unfortunately I haven't good solution now.
Take a look: http://take.ms/2E3fV
On image I mark rectangle which shows where exactly is now an element wchich responds for a click action on google map marker. So simply, when You scale map with CSS, each image scales too but position coordinates (left, right, top, bottom) don't change.
Theoreticaly You can inspect Google Map's code and fix this position in any way, but:
it's not universal solution (not for dynamic pin for example)
it can be changed in future (class name, or even whole solution)
it's rather hack than solution
what's your intens using transform:scale ?
why don't you use zoom for that ?
check my code snippet i edited from yours, may be this help you...
function initialize() {
var myLatlng = new google.maps.LatLng(-25.363882, 131.044922);
var myLatlng2 = new google.maps.LatLng(-22.363882, 125.044922);
var mapOptions = {
zoom: 4,
center: myLatlng
};
var map = new google.maps.Map(document.getElementById('map'), mapOptions);
var contentString = "Pls help me to get the right position :)"
var infowindow = new google.maps.InfoWindow({
content: contentString
});
var marker1 = new google.maps.Marker({
position: myLatlng,
map: map,
title: 'First Marker'
});
var marker2 = new google.maps.Marker({
position: myLatlng2,
map: map,
title: 'Sec Marker'
});
google.maps.event.addListener(marker1, 'mouseover', function () {
map.setZoom(14);
infowindow.open(map, marker1);
});
}
google.maps.event.addDomListener(window, 'load', initialize);
#map {
height: 400px;
width: 400px;
margin: auto;
padding: 0px;
top:100px;
}
.scale {
transition: all .2s ease-in-out;
}
#map.scale:hover {
transform: scale(1.9);
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp"></script>
<body>
<div id="map" class="map scale"></div>
</body>

Google maps not showing in Foundation sections

I have the same question as asked here but provided no accepted answer has been given and that my procedure is different, I'm opening a new one.
I have a map inside a Foundation tab that is hidden at the beginning and it only displays part of the map when opened. I've read the issues related to that and tried the attempts there but no luck. I know I have to re-initialize the map on tab change but I can't make it work.
I have a function that holds all the map info:
function startMap(obj){
var markers = new Array();
var glat_center = $(obj).attr('data-glat');
var glong_center = $(obj).attr('data-glong');
var Latlng_center = new google.maps.LatLng(glat_center, glong_center);
var mapOptions = {
zoom: zoom,
scrollwheel: false,
center: Latlng_center,
mapTypeId: google.maps.MapTypeId.ROADMAP,
styles: mapStyles,
mapTypeControl: false,
streetViewControl: false,
minZoom: 4,
zoomControlOptions: {
style: google.maps.ZoomControlStyle.SMALL,
position: google.maps.ControlPosition.TOP_RIGHT
}
};
var map = new google.maps.Map(obj, mapOptions);
if($(obj).attr('data-glat') && $(obj).attr('data-glong')){
var glat = $(obj).attr('data-glat');
var glong = $(obj).attr('data-glong');
var Latlng = new google.maps.LatLng(glat, glong);
var marker = new google.maps.Marker({
position: Latlng,
map: map
});
}
}
My html markup looks like this
<div class="tabs" data-section="auto">
<!--two more tabs here-->
<section class="property-location">
<a href="#" class="title" data-section-title>Title</a>
<div class="tab-content" data-slug="section3" data-section-content>
<div class="google-map" data-glat="123456" data-glong="123456" style="width: 100%; height: 440px;">
</div>
</div>
</section>
</div>
So then, what I'm trying to do is call this function when the tab is clicked, as I can't find any other tab events in Foundation docs. First I find the .title of the tab that contains the map, then look if a map exists (just in case) and then I call the function on the div holding the map.
$('.tabs .property-location').find('.title').click(function() {
if(($('.tab-content').find('.google-map')).length) {
//console.log('I found a map');
startMap($('.google-map'));
}
});
I know it's finding the map because I console.log it, but the console throws this error
NS_ERROR_FAILURE: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIDOMWindow.getComputedStyle]
which is on the following src http://maps.gstatic.com/intl/es_ALL/mapfiles/api-3/14/7/main.js
So it's the Google Maps JS that's throwing this error but I can't understand why.
I know it's difficult, but any ideas?
You pass a jQuery-element, but google maps needs a HTMLElement. Use
var map = document.querySelector('.google-map');
startMap(map);
instead of
startMap($('.google-map'));
Instead of querySelector you can use getElementsByClassName
var map = document.getElementsByClassName('google-map')[0];
But the always recommended approach is to refer to the map by an id :
<div id="the-google-map" class="google-map" data-glat="123456" data-glong="123456" style="width: 100%; height: 440px;"></div>
var map = document.getElementById('the-google-map');

Error when adding google map to page

I'm trying to add the google map with a marker into my form in order to help users choose the location, but it went wrong somewhere.
As you see, the map didn't display correctly in its area. I've put a marker into the map and also set center there, but the location of that marker is not correct, it hides outside the initial map (in the top right of the map above, instead of the center).
When I hit the F12 button to enable Firebug (in firefox), the map display correctly
Here's the code for creating the form and adding google map:
The form in index.html file:
<div id="map_company" style="float: left; width: 500px;height: 350px;">
<label style="margin-bottom: 5px;">Chọn vị trí hãng xe trên bản đồ:</label>
<div id="map_canvas" style="width: 100%; height: 100%; position: relative;"></div>
</div>
And the javascript in the script file:
//add map to company tab
//Set Center
var myOptions =
{
center: new google.maps.LatLng(21.044813, 105.79864),
zoom: 13,
mapTypeId: google.maps.MapTypeId.ROADMAP,
zoomControlOptions: {
style: google.maps.ZoomControlStyle.SMALL
}
};
map = new google.maps.Map(document.getElementById("map_canvas"),
myOptions);
var comMarker = new google.maps.Marker({
position: new google.maps.LatLng(21.044813, 105.79864),
map: map,
draggable: true
});
google.maps.event.addListener(comMarker, 'dragend', function {
document.getElementById("cLat").value = this.getPosition().lat();
document.getElementById("cLon").value = this.getPosition().lng();
});
Can anyone help me to figure out the problem here, I even don't know how to explain it to google.
It appears that you use tabs.
When yes, you must trigger the resize-event of the map when the tab with the map has been selected.
Give your map_canvas a fixed size (in pixels, not percentage) and remove the position = relative. If you use percentages the parent node must also have a size, otherwise it make no sense, (100% of what?).
<div id="map_canvas" style="width: 400px; height: 300px;"></div>

How can I show label/title for marker permanently in Google Maps V3?

I want to display Markers on Google map with title displayed under them as shown in picture:
Now this I read was possible in v2 using ELabel but is deprecated in v3. Is there any possible way to show some text under icons of markers in Google Maps V3?
Since at least October 2016, the official API provides a way to add permanently visible labels that are longer than one letter. See this reply by a Google project member.
var m = new google.maps.Marker({
position: new google.maps.LatLng(lat, lng),
label: 'Hello world',
});
By default, the result looks like:
Pretty unreadable. Fortunately the API also allows a MarkerLabel object instead of a plain string:
var m = new google.maps.Marker({
position: new google.maps.LatLng(lat, lng),
label: {
color: 'white',
fontWeight: 'bold',
text: 'Hello world',
},
});
Snippet above yields the following result:
However, the original question asked if the label could be located below the marker. The MarkerLabel docs mention this is possible with a custom icon and labelOrigin property. If we want to use the default icon, one is available at GitHub. Let us add the icon object:
var m = new google.maps.Marker({
position: new google.maps.LatLng(lat, lng),
label: {
color: 'white',
fontWeight: 'bold',
text: 'Hello world',
},
icon: {
labelOrigin: new google.maps.Point(11, 50),
url: 'default_marker.png',
size: new google.maps.Size(22, 40),
origin: new google.maps.Point(0, 0),
anchor: new google.maps.Point(11, 40),
},
});
This results:
Pretty good! However, this whole approach has a shortcoming that the box in the original question does not have: readability with each map type. If the map type is changed from the satellite to the default the resulting label is hard to read:
An easy but not perfect way to avoid the low contrast in the both types is to set color: 'gray':
However, the gray color fails near urban areas. A better option would be to apply text-shadow CSS property to draw black linings for the white text. However, I cannot find a way to apply the property to the labels because few DOM elements created by Google Maps define a class:
The best option I came up to is to detect changes in the map type and update label color for each marker:
map.addListener('maptypeid_changed', function () {
var typeToColor, type, color, k, label;
typeToColor = {
'terrain': 'black',
'roadmap': 'black',
'hybrid': 'white',
'satellite': 'white',
};
type = map.getMapTypeId();
color = typeToColor[type];
for (k in markers) {
if (markers.hasOwnProperty(k)) {
label = markers[k].getLabel();
label.color = color;
markers[k].setLabel(label);
}
}
});
However, even this would fail on snowy or cloudy satellite imagery. I think it is still good enough in most of the cases. Nevertheless, it is nice to have the ability to display visible labels with the official API, without any plugins :)
I found the solution in an other post which worked perfectly for me.
Add numbering label to google map marker
You can't! But there's another part of maps API you can use to have permanently displayed text attached to your markers (without requiring any third party component), it's called infoWindow. Have a look at this for sample code & see it in action: https://developers.google.com/maps/documentation/javascript/examples/event-closure
If you dare using third party code, then here's something that is closer from the look & feel you want: http://google-maps-utility-library-v3.googlecode.com/svn/trunk/infobox/docs/examples.html
I use the following:
MarkerWithLabel.js
( the image is just a flag.png file)
Using javascript in my X.html document
it looks something like this....
<style type="text/css">
.labels {
color: black;
background-color: white;
font-family: "Lucida Grande", "Arial", sans-serif;
font-size: 0.8em;
font-weight: bold;
text-align: center;
width: 6em;
border: 1px solid black;
white-space: normal;
}
</style>
<script type="text/javascript" src="http://maps.google.com/maps/api/js?v=3.9&sensor=true"></script>
<!--MarkerwithLabelClass - adjust the path!! -->
<script src="YourPathHere/markerwithlabel.js"></script>
<script type="text/javascript">
//insert standaard initializing of googlemaps here
//and other windows.onload function
window.onload = function Initialize() {
var myOptions = {
zoom: 8,
center: latlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
}
function CreateMarker(lat, long, titel, label, image, anchorY, anchorX){
var latlng = new google.maps.LatLng(parseFloat(lat), parseFloat(long));//I use parseFloat cause my parameters are strings(coming from JSON-string)
var marker = new MarkerWithLabel({
zIndex: 1,
title: titel,
position: latlng,
draggable: false,
icon: image,
labelContent: label,
labelAnchor: new google.maps.Point(30, -2),
labelClass: "labels", // the CSS class for the label
labelStyle: { opacity: 0.80 }
});
return marker;
}
</script>
Read up on license info for google maps API here : https://www.google.com/intx/en_uk/work/mapsearth/products/mapsapi.html
You should be able to use the same principle as in this example. Instead of listening to the mouse events you should create a new custom control for each marker and then position it below the marker. Hope it works out.

Changing KML Placemark icons on click in Google Maps API V3

I am trying to change the KML placemark icons of a KML overlay in a sample Maps application that I am working on.
Here's the sample code -
function seekml() {
var myLatlng = new google.maps.LatLng(40.65, -73.95);
var myOptions = {
zoom: 14,
mapTypeControl: true,
center: myLatlng,
mapTypeControlOptions: {
style: google.maps.MapTypeControlStyle.DROPDOWN_MENU,
position: google.maps.ControlPosition.TOP_RIGHT
},
navigationControl: true,
navigationControlOptions: {
style: google.maps.NavigationControlStyle.SMALL
},
mapTypeId: google.maps.MapTypeId.ROADMAP
};
url_end = "?nocache=" + (new Date()).valueOf(); //For No KML Caching
myKML = "http://kmlscribe.googlepages.com/SamplesInMaps.kml" + url_end
gMap = new google.maps.Map(document.getElementById("map"), myOptions);
var ctaLayer = new google.maps.KmlLayer(myKML,{suppressInfoWindows: true});
ctaLayer.setMap(gMap);
google.maps.event.addListener(ctaLayer, 'click', function(event) {
this.setIcon(gYellowIcon);
});
}
gYellowIcon has been defined in my code before -
var gYellowIcon = new google.maps.MarkerImage(
"image url",
new google.maps.Size(31, 31),
new google.maps.Point(0, 0),
new google.maps.Point(6, 20));
I want to change the KML overlay placemarks, when the user clicks on any of the placemarks shown on the KML overlay. The above code doesn't work.
I'm currently working on the exact same thing and, in my case, I could directly edit the KML file. If you have access to it and can edit it, here's what I did:
1) Right under <document> tag, paste something like this:
<Style id="desired_id">
<IconStyle>
<Icon>
<href>http://www.yourwebsite.com/your_preferred_icon.png</href>
<scale>1.0</scale>
</Icon>
</IconStyle>
</Style>
The scale parameter is not supported in Google Maps at the moment. Here you can check all supported elements of KML in Google Maps:
http://code.google.com/intl/en-EN/apis/kml/documentation/kmlelementsinmaps.html
And here you've got some info about compatibility between KML and GMaps:
http://code.google.com/intl/en-EN/apis/kml/documentation/mapsSupport.html
2) Once you've defined you're style, you can refer to it on each Placemark item by adding the following to it:
<styleUrl>#desired_id</styleUrl>
Now, all your placemarks should display showing your custom icon.
Hope it helps.
EDIT: Sorry I didn't see the on click part. This isn't quite what you need then. I'll leave it in case it helps someone else. Sorry for that.

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