I'm currently using the Google Maps API for the first time.
Essentially I wish to have the map zoomed out so that the whole world is displayed with no overlap (e.g. bits of a certain country are not repeated on either side of the map).
The closest I have found to my requirements is this SO question:
Google Maps API V3: Show the whole world
However, the top answer on this question does not provide the full code required.
I have used the starter example from Google as the base for my HTML:
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style type="text/css">
html { height: 100% }
body { height: 100%; margin: 0; padding: 0 }
#map-canvas { height: 100% }
</style>
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCuP_BOi6lD7L6ZY7JTXRdhY1YEj_gcEP0&sensor=false">
</script>
<script type="text/javascript">
function initialize() {
var mapOptions = {
center: new google.maps.LatLng(-34.397, 150.644),
zoom: 1
};
var map = new google.maps.Map(document.getElementById("map-canvas"), mapOptions);
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"/>
</body>
</html>
However, in the example provided in the question above a number of additional variables have been specified. My question is, where do I plug in the code from the question above to ensure that my world map is displayed correctly?
If you don't want any repeats, you need to control the minimum zoom allowed and the width of your map to be less than or equal to one width of of the base tiles at the minimum zoom level allowed on your map.
At zoom zero, one width of the world is a single 256 x 256 pixel tile, each zoom level increases that by a factor of 2.
This will show one width of the map at zoom level 1 (512x512 map-canvas), you can change the height, but the width will need to be 256 at zoom 0, 512 at zoom 1, 1024 at zoom 2, etc:
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style type="text/css">
html { height: 100% }
body { height: 100%; margin: 0; padding: 0 }
#map-canvas { height: 512px; width:512px;}
</style>
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?v=3&sensor=false">
</script>
<script type="text/javascript">
function initialize() {
var mapOptions = {
center: new google.maps.LatLng(-34.397, 150.644),
zoom: 1,
minZoom: 1
};
var map = new google.maps.Map(document.getElementById("map-canvas"), mapOptions);
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"/>
</body>
</html>
code snippet:
function initialize() {
var mapOptions = {
center: new google.maps.LatLng(-34.397, 150.644),
zoom: 1,
minZoom: 1
};
var map = new google.maps.Map(document.getElementById("map-canvas"), mapOptions);
}
google.maps.event.addDomListener(window, 'load', initialize);
html {
height: 100%
}
body {
height: 100%;
margin: 0;
padding: 0
}
#map-canvas {
height: 512px;
width: 512px;
}
<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk"></script>
<div id="map-canvas"></div>
Here's a function worldViewFit I like to use:
function initMap() {
var mapOptions = {
center: new google.maps.LatLng(0, 0),
zoom: 1,
minZoom: 1
};
map = new google.maps.Map(document.getElementById('officeMap'), mapOptions);
google.maps.event.addListenerOnce(map, 'idle', function() {
//Map is ready
worldViewFit(map);
});
}
function worldViewFit(mapObj) {
var worldBounds = new google.maps.LatLngBounds(
new google.maps.LatLng(70.4043,-143.5291), //Top-left
new google.maps.LatLng(-46.11251, 163.4288) //Bottom-right
);
mapObj.fitBounds(worldBounds, 0);
var actualBounds = mapObj.getBounds();
if(actualBounds.getSouthWest().lng() == -180 && actualBounds.getNorthEast().lng() == 180) {
mapObj.setZoom(mapObj.getZoom()+1);
}
}
google.maps.event.addDomListener(window, 'load', initMap);
html,
body {
height: 100%;
margin: 0;
padding: 0;
}
#officeMap {
height: 512px;
width: 512px;
}
<script src="https://maps.googleapis.com/maps/api/js"></script>
<div id="officeMap"></div>
This is the JavaScript I found:
/**
* All locations map scripts
*/
jQuery(function($){
$(document).ready(function(){
loadmap();
});
function loadmap()
{
var locations = wpsl_locator_all.locations;
var mapstyles = wpsl_locator.mapstyles;
var mappin = ( wpsl_locator.mappin ) ? wpsl_locator.mappin : '';
var bounds = new google.maps.LatLngBounds();
var mapOptions = {
mapTypeId: 'roadmap',
mapTypeControl: false,
zoom: 8,
styles: mapstyles,
panControl : false
}
if ( wpsl_locator.custom_map_options === '1' ) mapOptions = wpsl_locator.map_options;
var infoWindow = new google.maps.InfoWindow(), marker, i;
var map = new google.maps.Map( document.getElementById('alllocationsmap'), mapOptions );
// Loop through array of markers & place each one on the map
for( i = 0; i < locations.length; i++ ) {
var position = new google.maps.LatLng(locations[i].latitude, locations[i].longitude);
bounds.extend(position);
var marker = new google.maps.Marker({
position: position,
map: map,
title: locations[i].title,
icon: mappin
});
// Info window for each marker
google.maps.event.addListener(marker, 'click', (function(marker, i){
return function() {
infoWindow.setContent(locations[i].infowindow);
infoWindow.open(map, marker);
wpsl_all_locations_marker_clicked(marker, infoWindow)
}
})(marker, i));
// Center the Map
map.fitBounds(bounds);
var listener = google.maps.event.addListener(map, "idle", function() {
if ( locations.length < 2 ) {
map.setZoom(13);
}
google.maps.event.removeListener(listener);
});
}
// Fit the map bounds to all the pins
var boundsListener = google.maps.event.addListener((map), 'bounds_changed', function(event) {
google.maps.event.removeListener(boundsListener);
});
wpsl_all_locations_rendered(map);
} // loadmap()
});
Related
I want the marker/pin to scroll around and be in the center of the map while the user is dragging around the map. I have a simple jsfiddle (http://jsfiddle.net/upsidown/5xd1Lbpc/6/) where the pin will drop to the center of the map when the user stops dragging, but I want the pin to move with the dragging.
Google Maps JS
var center = new google.maps.LatLng(-33.013803, -71.551498);
var map = new google.maps.Map(document.getElementById('mapBox'), {
zoom: 18,
center: center,
mapTypeId: google.maps.MapTypeId.HYBRID
});
var myMarker = new google.maps.Marker({
position: center,
draggable: true,
map: map
});
google.maps.event.addListener(myMarker, 'dragend', function () {
map.setCenter(this.getPosition()); // Set map center to marker position
updatePosition(this.getPosition().lat(), this.getPosition().lng()); // update position display
});
google.maps.event.addListener(map, 'dragend', function () {
myMarker.setPosition(this.getCenter()); // set marker position to map center
updatePosition(this.getCenter().lat(), this.getCenter().lng()); // update position display
});
function updatePosition(lat, lng) {
document.getElementById('dragStatus').innerHTML = '<p> Current Lat: ' + lat.toFixed(4) + ' Current Lng: ' + lng.toFixed(4) + '</p>';
}
HTML
<div id='mapBox'></div>
Any ideas or thoughts on how to do this?
JSFiddle
To reduce flicker, you can put an absolutely positioned marker over top of the map directly in the center. Then you can use getCenter() to retrieve the actual position on the map.
#wrapper {
position: relative;
display: inline-block;
}
#mapBox {
width: 400px;
height: 300px;
}
#marker {
position: absolute;
top: calc(50% - 40px);
left: calc(50% - 40px);
height: 80px;
width: 80px;
border: 3px solid blue;
border-radius: 50%;
background-color: rgba(30,144,255,0.5);
box-sizing: border-box;
pointer-events: none;
}
HTML:
<div id="wrapper">
<div id="mapBox"></div>
<div id="marker"></div>
</div>
<div id="dragStatus"></div>
JS:
var center = new google.maps.LatLng(-33.013803, -71.551498);
var map = new google.maps.Map(document.getElementById('mapBox'), {
zoom: 18,
center: center,
mapTypeId: google.maps.MapTypeId.HYBRID
});
google.maps.event.addListener(map, 'drag', function() {
loc(map);
});
google.maps.event.addListener(myMarker, 'dragend', function () {
loc(map);
});
function loc(map) {
var x = map.getCenter();
document.getElementById('dragStatus').innerHTML = x.lat() + ', ' + x.lng();
}
Other Useful Answers:
Is there a way to Fix a Google Maps Marker to the Center of its Map always?
add this
google.maps.event.addListener(map, 'drag', function () {
myMarker.setPosition(this.getCenter()); // set marker position to map center
updatePosition(this.getCenter().lat(), this.getCenter().lng()); // update position display
});
see http://jsfiddle.net/gbqqzonr/
//Dragable Marker In Google Map....
var center = new google.maps.LatLng(-33.013803, -71.551498);
var map = new google.maps.Map(document.getElementById('mapBox'), {
zoom: 18,
center: center,
mapTypeId: google.maps.MapTypeId.HYBRID
});
var myMarker = new google.maps.Marker({
position: center,
draggable: true,
map: map
});
google.maps.event.addListener(myMarker, 'dragend', function () {
map.setCenter(this.getPosition()); // Set map center to marker position
updatePosition(this.getPosition().lat(), this.getPosition().lng()); // update position display
});
google.maps.event.addListener(map, 'drag', function () {
myMarker.setPosition(this.getCenter()); // set marker position to map center
updatePosition(this.getCenter().lat(), this.getCenter().lng()); // update position display
});
google.maps.event.addListener(map, 'dragend', function () {
myMarker.setPosition(this.getCenter()); // set marker position to map center
updatePosition(this.getCenter().lat(), this.getCenter().lng()); // update position display
});
function updatePosition(lat, lng) {
document.getElementById('dragStatus').innerHTML = '<p> Current Lat: ' + lat.toFixed(4) + ' Current Lng: ' + lng.toFixed(4) + '</p>';
}
I answered my question with help from a friend - labels and building polygons with pop ups now display.
The code uses an external GeoJSON with two building coordinates, values for colors and building names. The GeoJSON is used to draw the buidling polygons, and populate infoBox window.
The labels are blank window boxes with coordinates and text hard coded. There are other examples of this on Stack Overflow, however, I was having trouble getting both functions to work. Thanks to everyone who helped.
<!DOCTYPE html>
<html>
<head>
<title>UT Campus Map</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<style>
html, body, #map-canvas {
height: 90%;
padding: 10px;
}
</style>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script type="text/javascript" src="http://google-maps-utility-library-v3.googlecode.com/svn/trunk/infobox/src/infobox.js"></script>
<script>
// global variable
var map;
var mapData;
var dataURL = 'https://googledrive.com/host/0B9SE53Gvj0AsR3hyUDJ4Nk9ybG8/Bld.json';
var infoWindow = new google.maps.InfoWindow();
var colors = ["#9295ca", "#076bb6", "#e66665", "#666", "#333", "#456789"];
// create the map when the page loads
function initialize() {
var mapOptions = {
zoom: 16,
center: new google.maps.LatLng(30.284, -97.7325)
};
// build the map
map = new google.maps.Map(document.getElementById('map-canvas'),
mapOptions);
// get the data and draw the polygons
$.getJSON( dataURL, function( data ) {
loadGeoJSON(data);
});
// add colors
stylePolygons();
// add click listeners with info boxes
addClickListeners();
// finally add labels
addLabels();
};
// fetch the geojson data from the server
function loadGeoJSON (data) {
console.log(data);
map.data.addGeoJson(data,{idPropertyName:"id"});
};
// assign colors based on value property of each feature
function stylePolygons () {
map.data.setStyle(function(feature) {
var value = feature.getProperty('value');
var color = colors[value];
return {
fillColor: color,
strokeWeight: 1
};
});
};
//listen for click events
function addClickListeners () {
map.data.addListener('click', function(event) {
//show an infowindow on click
infoWindow.setContent('<div style="line-height:1.35;overflow:hidden;white-space:nowrap;"> <b>'+event.feature.getProperty("bldAbbrev") +"</b>"+"</br>" + event.feature.getProperty("GoogInfoWi") +"<br/>" + event.feature.getProperty("addressStr") +"</div>");
var anchor = new google.maps.MVCObject();
anchor.set("position",event.latLng);
infoWindow.open(map,anchor);
});
};
function buildMarkers(map, markerData) {
var newMarkers = [],
marker;
var blankMarker = {
path: 'M 0,0,0 z',
fillColor: 'yellow',
fillOpacity: 0.8,
scale: 0,
strokeColor: 'white',
strokeWeight: 4
};
for(var i=0; i<markerData.length; i++) {
marker = new google.maps.Marker({
map: map,
icon: blankMarker,
draggable: true,
position: markerData[i].latLng,
visible: true
}),
boxText = document.createElement("div"),
//these are the options for all infoboxes
infoboxOptions = {
content: boxText,
disableAutoPan: false,
maxWidth: 0,
pixelOffset: new google.maps.Size(40, 0),
zIndex: null,
boxStyle: {
background: "url('http://google-maps-utility-library-v3.googlecode.com/svn/trunk/infobox/examples/tipbox.gif') no-repeat",
opacity: 1,
width: "24px"
},
closeBoxMargin: "12px 4px 2px 2px",
closeBoxURL: "",
infoBoxClearance: new google.maps.Size(0, 0),
isHidden: false,
pane: "floatPane",
enableEventPropagation: false
};
newMarkers.push(marker);
//define the text and style for all infoboxes
boxText.style.cssText = "margin-top: 8px; background:#0xFFFFFF; color:#333; font-family:Arial; font-size:24px; padding: 0px; border-radius:0px; -webkit-border-radius:0px; -moz-border-radius:0px;";
boxText.innerHTML = markerData[i].label;
//Define the infobox
newMarkers[i].infobox = new InfoBox(infoboxOptions);
//Open box when page is loaded
newMarkers[i].infobox.open(map, marker);
}
return newMarkers;
};
function addLabels () {
var markerInfoArray =
[
{
latLng: new google.maps.LatLng(30.2848878, -97.7362857),
label:"SAC"
},
{
latLng: new google.maps.LatLng(30.2819835, -97.7404576),
label:"ATT"
}
];
var markerArray = buildMarkers(map, markerInfoArray);
};
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"></div>
</body>
</html>
I replaced the original question with the working code. Sorry for poor formatting and procedure, this was my first question.
I am trying to simply get a marker to display. I'm using Google's examples as a guide because this is the first time I am using Google Maps API. I can't find any syntax problems with the code below. Why is it not loading the marker?
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<style type="text/css">
html { height: 100% }
body { height: 100%; margin: 0px; padding: 0px }
#map_canvas { height: 100%; z-index: 0;}
#gmnoprint {width: auto;}
</style>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<title>Google Map of Floor Plan</title>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"></script>
<script>
function CustomMapType() {
}
CustomMapType.prototype.tileSize = new google.maps.Size(256,256);
CustomMapType.prototype.maxZoom = 4;
CustomMapType.prototype.getTile = function(coord, zoom, ownerDocument) {
var div = ownerDocument.createElement('DIV');
var baseURL = 'C:/Temp';
baseURL += zoom + '_' + coord.x + '_' + coord.y + '.png';
div.style.width = this.tileSize.width + 'px';
div.style.height = this.tileSize.height + 'px';
div.style.backgroundColor = '#1B2D33';
div.style.backgroundImage = 'url(' + baseURL + ')';
return div;
};
CustomMapType.prototype.name = "Custom";
CustomMapType.prototype.alt = "Tile Coordinate Map Type";
var map;
var CustomMapType = new CustomMapType();
function initialize() {
var myLatlng = new google.maps.LatLng(65, -56);
var mapOptions = {
minZoom: 0,
maxZoom: 4,
isPng: true,
mapTypeControl: false,
streetViewControl: false,
center: new google.maps.LatLng(65.07,-56.08),
zoom: 3,
mapTypeControlOptions: {
mapTypeIds: ['custom', google.maps.MapTypeId.ROADMAP],
style: google.maps.MapTypeControlStyle.DROPDOWN_MENU
}
};
var marker = new google.maps.Marker({
position: myLatlng,
map: map,
title: 'Hello World'
});
map = new google.maps.Map(document.getElementById("map_canvas"),mapOptions);
map.mapTypes.set('custom',CustomMapType);
map.setMapTypeId('custom');
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body onload="initialize()">
<div id="map_canvas" style="background: #1B2D33;"></div>
</body>
</html>
Your map is not initialized at time when marker is created:
var marker = new google.maps.Marker({
position: myLatlng,
map: map,
title: 'Hello World'
});
map = new google.maps.Map(document.getElementById("map_canvas"),mapOptions);
So, you have to create map first and then use it:
map = new google.maps.Map(document.getElementById("map_canvas"),mapOptions);
var marker = new google.maps.Marker({
position: myLatlng,
map: map,
title: 'Hello World'
});
or call setMap on the marker after initializing the map:
var marker = new google.maps.Marker({
position: myLatlng,
title: 'Hello World'
});
map = new google.maps.Map(document.getElementById("map_canvas"),mapOptions);
marker.setMap(map);
Is there a way to display the marker icon in fore ground as soon the street view map is loaded, user should not pan until he sees the marker icon, i have updated the code in the below link
var fenway = new google.maps.LatLng(40.729884, -73.990988);
var mapOptions = {
center: fenway,
zoom: 14
};
var map = new google.maps.Map(
document.getElementById('map-canvas'), mapOptions);
var panoramaOptions = {
position: fenway,
pov: {
heading: 500,
pitch: 0
}
};
var panorama = new google.maps.StreetViewPanorama(document.getElementById('pano'),panoramaOptions);
var panorama1 = new google.maps.StreetViewPanorama(document.getElementById('pano1'),panoramaOptions);
var marker = new google.maps.Marker({
position:fenway,
map:panorama
});
var marker1 = new google.maps.Marker({
position:fenway,
map:panorama1,
});
map.setStreetView(panorama,fenway);
map.setStreetView(panorama1);
http://jsfiddle.net/vinothpsv/JKx3Z/
The trick is in "google.maps.geometry.spherical.computeHeading"
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Street View service</title>
<style>
html,
body,
#map-canvas {
height: 100%;
margin: 0px;
padding: 0px
}
</style>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&libraries=geometry"></script>
<script>
var panorama = null;
var fin;
function initialize() {
//var fenway = new google.maps.LatLng(42.345573,-71.098326);
var fenway = new google.maps.LatLng(40.729884, -73.990988);
var mapOptions = {
center: fenway,
zoom: 14
};
var map = new google.maps.Map(
document.getElementById('map-canvas'), mapOptions);
var panorama = new google.maps.StreetViewPanorama(document.getElementById('pano'));
panorama.setPosition(fenway);
google.maps.event.addListenerOnce(panorama, 'status_changed', function () {
var heading = google.maps.geometry.spherical.computeHeading(panorama.getLocation().latLng, fenway);
panorama.setPov({
heading: heading,
pitch: 0
});
setTimeout(function() {
marker = new google.maps.Marker({
position: fenway,
map: panorama,
});
if (marker && marker.setMap) marker.setMap(panorama);}, 500);
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas" style="width: 400px; height: 300px"></div>
<div id="pano" style="position:absolute; left:410px; top: 8px; width: 400px; height: 300px;"></div>
<div id="pano1" style="position:relative; left:410px; top: 8px; width: 400px; height: 300px;"></div>
</body>
</html>
Sounds like you just want to change the heading... Not sure what you want. The marker is based on where the heading is.
I have a demo here http://jsfiddle.net/coderslay/vQVTq/1/
My Js file
var fenway = new google.maps.LatLng(42.345573,-71.098326);
var panoramaOptions = {
enableCloseButton : true,
visible: false
};
var panorama = new google.maps.StreetViewPanorama(document.getElementById("pano"), panoramaOptions);
var mapOptions = {
center: fenway,
zoom: 14,
mapTypeId: google.maps.MapTypeId.ROADMAP,
streetView : panorama
};
var map = new google.maps.Map(document.getElementById("map_canvas"), mapOptions);
google.maps.event.addListener(panorama, "visible_changed", function() {
if (panorama.getVisible() && $("#pano").is(':visible')){
//moving the pegman around the map
}else if(panorama.getVisible() && $("#pano").is(':hidden')){
$("#pano").show();
$("#map_canvas").removeClass('bigmap');
$("#map_canvas").addClass('minimap');
latLngBounds = new google.maps.LatLngBounds();
latLngBounds.extend( new google.maps.LatLng(panorama.getPosition().lat(), panorama.getPosition().lng()));
map.panToBounds(latLngBounds);
map.fitBounds(latLngBounds);
}
google.maps.event.addListener(panorama, "closeclick", function() {
$("#pano").hide();
$("#map_canvas").removeClass('minimap');
$("#map_canvas").addClass('bigmap');
});
});
My css file
#container {
width:500px;
height: 500px ;
position: relative;
}
#map_canvas,
#pano {
position: absolute;
top: 0;
left: 0;
}
#map_canvas {
z-index: 10;
}
.bigmap{
width:100%;
height:100%;
}
.minimap{
width:50%;
height:100%;
}
Now what is happening is when i do map.panToBounds(latLngBounds); map.fitBounds(latLngBounds); then the pegman is coming at the center of the entire map, regardless of the Street view and normal view. I want the Pegman to be shown at the center of the normal map. How to do it?
It seems to me as if, even though you've changed the width of the map to 50%, Google still thinks it's at 100%, and doesn't know to dynamically adjust it. You could try removing then adding a new map at the new width instead.
Alternatively, try the Map panBy() function to pan left 250 pixels.
PS: why is the pano set to 100% width and not 50%?