Javascript, Change google map marker color

Question

May I know a way to change the Google Map marker color via Javascript.. I am new at this and any help would be much appreciated, Thank you.

I used the following code

Answer 1

I have 4 ships to set on one single map, so I use the Google Developers example and then twisted it

https://developers.google.com/maps/documentation/javascript/examples/icon-complex

In the function bellow I set 3 more color options:

function setMarkers(map, locations) {
...
var image = {
    url: 'img/bullet_amarelo.png',
    // This marker is 20 pixels wide by 32 pixels tall.
    size: new google.maps.Size(40, 40),
    // The origin for this image is 0,0.
    origin: new google.maps.Point(0,0),
    // The anchor for this image is the base of the flagpole at 0,32.
    anchor: new google.maps.Point(0, 40)
  };
  var image1 = {
            url: 'img/bullet_azul.png',
            // This marker is 20 pixels wide by 32 pixels tall.
            size: new google.maps.Size(40, 40),
            // The origin for this image is 0,0.
            origin: new google.maps.Point(0,0),
            // The anchor for this image is the base of the flagpole at 0,32.
            anchor: new google.maps.Point(0, 40)
          };
  var image2 = {
          url: 'img/bullet_vermelho.png',
          // This marker is 20 pixels wide by 32 pixels tall.
          size: new google.maps.Size(40, 40),
          // The origin for this image is 0,0.
          origin: new google.maps.Point(0,0),
          // The anchor for this image is the base of the flagpole at 0,32.
          anchor: new google.maps.Point(0, 40)
        };
  var image3 = {
          url: 'img/bullet_verde.png',
          // This marker is 20 pixels wide by 32 pixels tall.
          size: new google.maps.Size(40, 40),
          // The origin for this image is 0,0.
          origin: new google.maps.Point(0,0),
          // The anchor for this image is the base of the flagpole at 0,32.
          anchor: new google.maps.Point(0, 40)
        };
...
}

And in the FOR bellow I set one color for each ship:

for (var i = 0; i < locations.length; i++) {
...
    if (i==0) var imageV=image;
    if (i==1) var imageV=image1;
    if (i==2) var imageV=image2;
    if (i==3) var imageV=image3;
...
# remember to change icon: image to icon: imageV
}

The final result:

http://www.mercosul-line.com.br/site/teste.html

Answer 2

you can use the google chart api and generate any color with rgb code on the fly:

example: marker with #ffffd color:

http://chart.apis.google.com/chart?chst=d_map_pin_letter&chld=%E2%80%A2|ffffd

include as stated above with

 var marker = new google.maps.Marker({
    position: marker,
    title: 'Hello World',
    icon: 'http://chart.apis.google.com/chart?chst=d_map_pin_letter&chld=%E2%80%A2|ffffd'
});

Answer 3

I suggest using the Google Charts API because you can specify the text, text color, fill color and outline color, all using hex color codes, e.g. #FF0000 for red. You can call it as follows:

function getIcon(text, fillColor, textColor, outlineColor) {
  if (!text) text = '•'; //generic map dot
  var iconUrl = "http://chart.googleapis.com/chart?cht=d&chdp=mapsapi&chl=pin%27i\\%27[" + text + "%27-2%27f\\hv%27a\\]h\\]o\\" + fillColor + "%27fC\\" + textColor + "%27tC\\" + outlineColor + "%27eC\\Lauto%27f\\&ext=.png";
  return iconUrl;
}

Then, when you create your marker you just set the icon property as such, where the myColor variables are hex values (minus the hash sign):

var marker = new google.maps.Marker({
  position: new google.maps.LatLng(locations[i][1], locations[i][2]),
  animation: google.maps.Animation.DROP,
  map: map,
  icon: getIcon(null, myColor, myColor2, myColor3)
});

You can use http://chart.googleapis.com/chart?chst=d_map_pin_letter&chld=•|FF0000, which is a bit easier to decipher, as an alternate URL if you only need to set text and fill color.

khurram's answer refers to a 3rd party site that redirects to the Google Charts API. This means if that person takes down their server you're hosed. I prefer having the flexibility the Google API offers as well as the reliability of going directly to Google. Just make sure you specify a value for each of the colors or it won't work.

Answer 4

You can use this code it works fine.

 var pinImage = new google.maps.MarkerImage("http://www.googlemapsmarkers.com/v1/009900/");

 var marker = new google.maps.Marker({
            position: yourlatlong,
            icon: pinImage,
            map: map
        });

see Example here

Answer 5

I really liked the answer given by Bahadır Yağan except I didn't like depending on a limited set of icons given by Google or an external API to generate my marker icons. Here is the initial solution:

var marker = new google.maps.Marker({
    id: "some-id",
    icon: {
        path: google.maps.SymbolPath.FORWARD_CLOSED_ARROW,
        strokeColor: "red",
        scale: 3
    },
    map: map,
    title: "some-title",
    position: myLatlng
});

And here is my improved solution:

var marker = new google.maps.Marker({
            position: myLatlng,
            icon:{
                path: 'm 12,2.4000002 c -2.7802903,0 -5.9650002,1.5099999 -5.9650002,5.8299998 0,1.74375 1.1549213,3.264465 2.3551945,4.025812 1.2002732,0.761348 2.4458987,0.763328 2.6273057,2.474813 L 12,24 12.9825,14.68 c 0.179732,-1.704939 1.425357,-1.665423 2.626049,-2.424188 C 16.809241,11.497047 17.965,9.94 17.965,8.23 17.965,3.9100001 14.78029,2.4000002 12,2.4000002 Z',
                fillColor: '#00FF00',
                fillOpacity: 1.0,
                strokeColor: '#000000',
                strokeWeight: 1,
                scale: 2,
                anchor: new google.maps.Point(12, 24),
            },
        });

I wanted a specific pin icon so I went and made one with inkscape, then opened the SVG file and copied the svg path into the path into the code, but this works with any SVG path that you put in the "path" attribute of the icon object.

Here is the result:

Answer 6

In Google Maps API v3 you can try changing marker icon. For example for green icon use:

marker.setIcon('http://maps.google.com/mapfiles/ms/icons/green-dot.png')

Or as part of marker init:

marker = new google.maps.Marker({
    icon: 'http://...'
});

Other colors:

• http://maps.google.com/mapfiles/ms/icons/blue-dot.png
• http://maps.google.com/mapfiles/ms/icons/red-dot.png

Etc.