I am working on a project in which i have marker on map with a circle around it. I want to move the circle along with marker. When ever i move the marker the circle remains to its last position. I want to move both that when ever i move the marker the circle should also move along with it.
Kindly tell me where i am doing mistake?
code is here:
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<title>Draw Circle on Marker Click on Google Map</title>
<style>
html, body {
height: 100%;
margin: 0;
padding: 0;
}
#map {
height: 99%;
width: 99%
}
</style>
<script async defer
src="https://maps.googleapis.com/maps/api/js?signed_in=true&callback=initMap"></script>
<script>
var markers = [];
var map;
// First, create an object containing LatLng and population for each city.
var citymap = {lat:21.002471054356725, lng:79.12353515625};
function initMap() {
var lat_lng = {lat: 22.08672, lng: 79.42444};
map = new google.maps.Map(document.getElementById('map'), {
zoom: 6,
center: lat_lng,
mapTypeId: google.maps.MapTypeId.TERRAIN
});
var marker = new google.maps.Marker({
position: lat_lng,
draggable:true ,
map: map
});
var cityCircle = new google.maps.Circle({
strokeColor: '#FF0000',
strokeOpacity: 0.8,
strokeWeight: 2,
fillColor: '#FF0000',
fillOpacity: 0.35,
map: map,
center: lat_lng,
radius: 199999.45454,
draggable:true
});
}
</script>
</head>
<body>
<div id="map"></div>
</body>
</html>
You just need to bind drag event with circle with .addListener() function
do it like this
function initMap() {
var lat_lng = {lat: 22.08672, lng: 79.42444};
map = new google.maps.Map(document.getElementById('map'), {
zoom: 6,
center: lat_lng,
mapTypeId: google.maps.MapTypeId.TERRAIN
});
var marker = new google.maps.Marker({
position: lat_lng,
draggable:true ,
map: map
});
var cityCircle = new google.maps.Circle({
strokeColor: '#FF0000',
strokeOpacity: 0.8,
strokeWeight: 2,
fillColor: '#FF0000',
fillOpacity: 0.35,
map: map,
center: lat_lng,
radius: 199999.45454,
draggable:true
});
//add event listner on drag event of marker
marker.addListener('drag', function(event) {
cityCircle.setOptions({center:{lat:event.latLng.lat(),lng:event.latLng.lng()}});
});
}
Related
My problem is: I need to draw with mode POLYGON with a initial point, like a marker or another element. For example - JSFiddle Example
With marker:
var initialPosition = new google.maps.Marker({
position: {
lat: -22.397542,
lng: -46.884630
}
});
This position is given without any user interaction. How can I do that?
In my example, how can I draw a polygon starting from marker without click it, making marker position my first polygon point?
You could do the following: use addListenerOnce to detect a click on the map (only once). This will allow to create a Polygon that goes from your marker position, to where the user clicked, and back to the marker position.
By setting the editable property to true, you can then move each Polygon point separately, and add segments by dragging the existing segment(s) middle point(s).
Here is a working example:
function initialize() {
var myLatLng = new google.maps.LatLng(46.2, 6.17);
var mapOptions = {
zoom: 4,
center: myLatLng,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("map-canvas"), mapOptions);
var marker = new google.maps.Marker({
position: myLatLng,
map: map
});
google.maps.event.addListenerOnce(map, 'click', function(e) {
var origin = marker.getPosition();
var coords = [
origin,
e.latLng,
origin,
];
var poly = new google.maps.Polygon({
map: map,
paths: coords,
editable: true,
strokeColor: '#FF0000',
strokeOpacity: 0.8,
strokeWeight: 2,
fillColor: '#FF0000',
fillOpacity: 0.35
});
});
}
initialize();
#map-canvas {
height: 150px;
}
<div id="map-canvas"></div>
<script src="https://maps.googleapis.com/maps/api/js"></script>
I want to create multiple rectangle on gmaps but I don't know where must I put the code.
This is my sample code
function initMap() {
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 5,
center: {lat: 37.0924, lng: -119.4179324},
mapTypeId: 'terrain'
});
var contentString = '<div id="content">'+
'<p><b>Uluru</b>, also referred to as <b>Ayers Rock</b>, is a large
'</div>';
var infowindow = new google.maps.InfoWindow({
content: contentString
});
var rectangle = new google.maps.Rectangle({
strokeColor: '#FF0000',
strokeOpacity: 0.8,
strokeWeight: 2,
fillColor: '#FF0000',
fillOpacity: 0.35,
map: map,
bounds:
new google.maps.LatLngBounds
<?php
$con = mysqli_connect("localhost","root","","test");
$query=mysqli_query($con,"SELECT * FROM map");
$cc=mysqli_fetch_array($query);
?>
(
new google.maps.LatLng (<?php echo $cc['nelat']; ?>, <?php echo $cc['nelng']; ?>),
new google.maps.LatLng (<?php echo $cc['swlat']; ?>, <?php echo $cc['swlng']; ?>),
),
});
rectangle.addListener('click', function() {
infowindow.open(map, rectangle);
});
}
#map {
height: 100%;
}
html, body {
height: 100%;
margin: 0;
padding: 0;
}
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<title>Rectangles</title>
</head>
<body>
<div id="map"></div>
<script async defer
src="https://maps.googleapis.com/maps/api/js?key=AIzaSyAogXD-AHrsmnWinZIyhRORJ84bgLwDPpg&callback=initMap">
</script>
</body>
</html>
In that snippet only show 1 rectangle. If I want to add other rectangle where must I put the code? Example I want to show 5 rectangle and at different position. and also give info window for each rectangle
Add a separate rectangle variable:
function initMap() {
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 5,
center: {lat: 37.0924, lng: -119.4179324},
mapTypeId: 'terrain'
});
var rectangle = new google.maps.Rectangle({
strokeColor: '#FF0000',
strokeOpacity: 0.8,
strokeWeight: 2,
fillColor: '#FF0000',
fillOpacity: 0.35,
map: map,
bounds:
new google.maps.LatLngBounds
(
new google.maps.LatLng (37.778261, -119.4179324),new google.maps.LatLng (36.255123, -115.2383485),
),
});
var rectangle2 = new google.maps.Rectangle({
strokeColor: '#FF0000',
strokeOpacity: 0.8,
strokeWeight: 2,
fillColor: '#FF0000',
fillOpacity: 0.35,
map: map,
bounds:
new google.maps.LatLngBounds
(
new google.maps.LatLng (30.778261, -119.4179324),new google.maps.LatLng (29.255123, -115.2383485),
),
});
}
#map {
height: 100%;
}
html, body {
height: 100%;
margin: 0;
padding: 0;
}
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<title>Rectangles</title>
</head>
<body>
<div id="map"></div>
<script async defer
src="https://maps.googleapis.com/maps/api/js?key=AIzaSyAogXD-AHrsmnWinZIyhRORJ84bgLwDPpg&callback=initMap">
</script>
</body>
</html>
I am trying to display a highlighted circle when the user double clicks on a certain part of an image. For example, if the image is a map of a city, and they double click on coord: (X, Y), I want the highlighted circle's center to be at (X, Y) and the radius would vary on the item that they clicked on.
Here is what I have so far:
<script type="text/javascript"
src="https://maps.googleapis.com/maps/api/js?sensor=false">
</script>
<script type="text/javascript">
function showMap(){
var mapOptions = {
zoom: 19,
center: new google.maps.LatLng(x, y),//let z, y be some coord
mapTypeId: google.maps.MapTypeId.ROADMAP,
disableDoubleClickZoom: true,
disableDefaultUI: true,
zoomControl: false,
draggable: false,
scrollwheel: false
}
map = new google.maps.Map(document.getElementById("myMap"),
mapOptions);
google.maps.event.addListener(map, 'dblclick', doubleClicked);
}
function doubleClicked(e){//highlight the area with a circle
//alert("lat: " + e.latLng.lat() + "\nlong: " + e.latLng.lng());
}
</script>
HTML
<div id="myMap" ></div>
CSS
#myMap {
margin-left: auto;
margin-right: auto;
width: 1200px;
height: 800px
}
Solution with help from #Aamir Sarwar:
var circle = new google.maps.Circle({
strokeColor: '#FFFFFF',
strokeOpacity: 0.8,
strokeWeight: 2,
fillColor: '#FF0000',
fillOpacity: 0.35,
map: map,
center: {lat: X, lng: Y}
radius: 10
});
check below example copy from this link...hope it may help you https://developers.google.com/maps/documentation/javascript/examples/rectangle-simple?hl=en
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<title>Rectangles</title>
<style>
html, body {
height: 100%;
margin: 0;
padding: 0;
}
#map {
height: 100%;
}
</style>
<script>
// This example adds a red rectangle to a map.
function initMap() {
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 11,
center: {lat: 33.678, lng: -116.243},
mapTypeId: google.maps.MapTypeId.TERRAIN
});
var rectangle = new google.maps.Rectangle({
strokeColor: '#FF0000',
strokeOpacity: 0.8,
strokeWeight: 2,
fillColor: '#FF0000',
fillOpacity: 0.35,
map: map,
bounds: {
north: 33.685,
south: 33.671,
east: -116.234,
west: -116.251
}
});
}
</script>
</head>
<body>
<div id="map"></div>
<script async defer
src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&signed_in=true&callback=initMap"></script>
</body>
</html>
Here's the general outline:
myMap should be position:relative
Add mouse events on myMap to track X,Y of the mouse position
in doubleClicked method, create div that would be displayed as circle. Also it should be position:absolute
add that element to the myMap and change its CSS: left to mouse X position and top to mouse Y position
I want to create a circle using one click on the map, also i want to collect the Lat/Lon information of the circle and it's radius. Please suggest me how to do it using JavaScript.
Regards,
Madhu
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<title>Circles</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&sensor=false"></script>
<script>
// This example creates circles on the map with fixed radius of 5km
var cityCircle;
function initialize() {
// Create the map.
var mapOptions = {
zoom: 14,
center: new google.maps.LatLng(37.09024, -95.712891),//can use your center
mapTypeId: google.maps.MapTypeId.TERRAIN
};
var map = new google.maps.Map(document.getElementById('map-canvas'),
mapOptions);
google.maps.event.addListener(map, "click", function (e) {
//lat and lng is available in e object
var latLng = e.latLng;
// Construct the circleOptions
var circleOptions = {
//optional to modify
/* strokeColor: '#FF0000',
strokeOpacity: 0.8,
strokeWeight: 2,
fillColor: '#FF0000',
fillOpacity: 0.35,*/
map: map,
center: latLng,
radius: 5000 //in meters apporx.
};
// Add the circle for this city to the map.
cityCircle = new google.maps.Circle(circleOptions);
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"></div>
</body>
</html>
I wanted to create the arrow directed polyline using google map. I'm able to connect through line. But i wanted to draw line in arrow ended.
My code is
function initialize() {
geocoder = new google.maps.Geocoder();
var latlng = new google.maps.LatLng(-34.397, 150.644);
var mapOptions = {
zoom: 5
//center: latlng
}
map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
map.clearOverlays();
// Define a symbol using a predefined path (an arrow)
// supplied by the Google Maps JavaScript API.
var lineSymbol = {
path: google.maps.SymbolPath.FORWARD_OPEN_ARROW
};
var polyOptions = {
strokeColor: '#000000',
strokeOpacity: 1.0,
icons: [{
icon: lineSymbol,
strokeColor: '#FF0000',
strokeOpacity: 1.0,
offset: '100%'
}],
strokeWeight: 3
};
lineCoordinates= new google.maps.Polyline(polyOptions);
lineCoordinates.setMap(map);
}
function placeMarker(mapLoc,address,infoDlgString){
map.setCenter(mapLoc);
var marker = new google.maps.Marker({
map: map,
animation: google.maps.Animation.DROP,
title: address,
position: mapLoc
});
var infowindow = new google.maps.InfoWindow({
content:infoDlgString
});
infowindow.open(map,marker);
}
function getAddressDetail(address2,infoDlgString){
geocoder.geocode( { 'address': address2}, function(results2, status2) {
if (status2 == google.maps.GeocoderStatus.OK) {
map.setCenter(results2[0].geometry.location);
placeMarker(results2[0].geometry.location,address2,infoDlgString);
var path = lineCoordinates.getPath();
path.push(results2[0].geometry.location);
} else {
alert('Geocode was not successful for the following reason: ' + status2);
}
});
}
google.maps.event.addDomListener(window, 'load', initialize);
You haven't specified a path for your polyline to follow. So Google doesn't know what to plot. Once you add a path of multiple latlngs in your polyOptions variable, the line should appear with the correct arrow head end. This works for me:
<!DOCTYPE html>
<html>
<head>
<title>Polyline with arrows</title>
<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 { width:100%; height:100% }
</style>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
function initialize() {
var latlng = new google.maps.LatLng(54.57723, -2.79748);
var myOptions = {
zoom: 9,
center: latlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
var lineSymbol = {
path: google.maps.SymbolPath.FORWARD_OPEN_ARROW,
strokeColor: '#FF0000',
strokeOpacity: 1.0
};
var polyline = new google.maps.Polyline({
path: [latlng, new google.maps.LatLng(54.60039,-3.13632), new google.maps.LatLng(54.36897,-3.07561)],
strokeColor: "#000000",
strokeOpacity: 0.5,
strokeWeight: 4,
map: map,
icons: [{
icon: lineSymbol,
offset: '100%'
}]
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map_canvas"></div>
</body>
</html>
Also note that there is no strokeColor or strokeOpacity properties in the IconSequence object. These are on the Symbol object instead.