Google Maps Api 3 Remove Selected Marker Only - google-maps-api-3

Question

I've 2 function as below:
function addMarker() {
marker = new google.maps.Marker({
position: Gpoint,
map: map,
draggable: true,
animation: google.maps.Animation.DROP
});
map.panTo(Gpoint);
google.maps.event.addListener(marker, "rightclick",
function (point) {
showContextMarker(point.latLng); } );
$('.contextmenu').remove();
};
function delMarker() { marker.setMap(null); $('.contextmenu').remove(); };
So, as may understand I have a Context Menu having "Delete Marker" option on it.
I am binding a "rightclick" listener during adding a marker, to show this menu.
Everything is working without any problem till this moment.
But when I try to click on a marker to delete; it is effecting only the last added marker.
When I try again; nothing happens.
So my idea is to get the clicked marker's id (or something that may well be useful) and run this deleting function according to this.
Briefly; I want to delete the marker that I clicked on, from a map having multiple markers.
Do you have any approach to solve this problem ?
Thanks in advance!
SOLVED!
Here is the solution. Thank you Fatih. it was impossible without your guidance:
var id;
var markers = {};
var addMarker = function () {
marker = new google.maps.Marker({
position: Gpoint,
map: map,
draggable: true,
animation: google.maps.Animation.DROP
});
map.panTo(Gpoint);
id = marker.__gm_id
markers[id] = marker;
google.maps.event.addListener(marker, "rightclick", function (point) { id = this.__gm_id; delMarker(id) });
}
var delMarker = function (id) {
marker = markers[id];
marker.setMap(null);
}
Calling delete function by: delMarker(id)
Ps: "Right clicking is enough on this case"
Thank you!

Answer 1

Working Sample on jsFiddle
Google Maps doesn't manage your markers. So all your markers should be managed by yourself.
Make a global marker object and push all markers to this object. And give unique id to each marker when getting a marker instance. Then when you want to delete a marker take its id and find this marker in global marker object and finally call this marker instance's setMap method with passing null argument.
Also I've added a demo that works on jsFiddle. Code is heavily documented.
Your psuedo code should be like this. For more detailed code please look the demo.
var currentId = 0;
var uniqueId = function() {
return ++currentId;
}
var markers = {};
var createMarker = function() {
var id = uniqueId(); // get new id
var marker = new google.maps.Marker({ // create a marker and set id
id: id,
position: Gpoint,
map: map,
draggable: true,
animation: google.maps.Animation.DROP
});
markers[id] = marker; // cache created marker to markers object with id as its key
return marker;
}
var deleteMarker = function(id) {
var marker = markers[id]; // find the marker by given id
marker.setMap(null);
}

Answer 2

Complementing the #Fatih answer you should manage the markers. For example you could add each marker in a array and then to remove, you could find this marker into the array and set the val in the map null.

Answer 3

Just pass your marker in the rightclick function. For example:
var marker = new google.maps.Marker({
position: event.latLng,
map: map,
draggable: true,
title: 'Hello World!'
});
google.maps.event.addListener(marker, "rightclick", function (point) {delMarker(marker)});
And make the function look this:
var delMarker = function (markerPar) {
markerPar.setMap(null);
}
Your markers will be removeable on the rightclicks.

Answer 4

this worked for me:
a second currentId, if you have a better idea, let me know
var actualMarkerId = 0;
var currentId = 0;
if (actualMarkerId>0) {
deleteMarker(actualMarkerId);
console.log(actualMarkerId);
}
var id = uniqueId(); // get new id
actualMarkerId = id;

Answer 5

For minimal changes
var newid=0;
for (var index in results){
var marker = new google.maps.Marker({
map: map,
icon: image,
__gm_id: = newid+1,
});
}
Now marker['__gm_id'] still has a value

Answer 6

Simple,Use Global array for marker Objects.
Push marker object in that array on plotting marker.
Yes,We can use Id in Marker Object for Unique Reference.
Code As Below
MarkerArray = []
marker = new google.maps.Marker({
Id: 1,
position: new google.maps.LatLng(Lat,Long),
type: 'info'
});
MarkerArray.push(marker);
To remove particular Marker,Find that Element Index using Unique Id for Each Marker.
var MarkerIndex = MarkerArray.findIndex(function GetIndex(element) {
return element.Id == 1;
});
MarkerArray[MarkerIndex].setMap(null);
MarkerArray.splice(MarkerIndex, 1); // to remove element from global array