Javascript Reference - HTML DOM Area coords Property

The coords attribute specifies the x and y coordinates of an area.

The coords property sets or gets the value of the coords attribute of an area.

Browser Support


`coords`	Yes	Yes	Yes	Yes	Yes

Syntax

Return the coords property:

var v = areaObject.coords;

Set the coords property:

areaObject.coords = value;

Property Values

Value	Description
x1,y1,x2,y2	for rect, it sets the top-left corner and the bottom-right corner of the rectangle
x,y,radius	for circle, it sets the circle center and the radius
x1,y1,x2,y2,..,xn,yn	for poly, it sets the edges of the polygon.

Return Value

A String representing the coordinates.

Example

The following code shows how to get the coordinates for a specific area in an image-map.


<!DOCTYPE html>
<html>
<body>
<!--from   w ww. ja  va2  s.c o m-->
<img src="http://java2s.com/style/demo/border.png" width="145" 
    height="126" usemap="#myImageMap">

<map name="myImageMap">
  <area id="myArea" shape="circle" coords="124,58,8" alt="an image" href="http://example.com">
</map>
<p id="demo"></p>

<button onclick="myFunction()">test</button>

<script>
function myFunction() {
    var x = document.getElementById("myArea").coords;
    document.getElementById("demo").innerHTML = x;
}
</script>

</body>
</html>

The code above is rendered as follows:

Example 2

The following code shows how to change the coordinates for a specific area in an image-map.


<!DOCTYPE html>
<html>
<body>
<!--  w  w w.  j  a  va2 s .co  m-->
<img src="http://java2s.com/style/demo/border.png" width="145" 
     height="126" usemap="#myImageMap">

<map name="myImageMap">
  <area id="myArea" shape="circle" coords="130,60,8" alt="myImage" href="http://example.com">
</map>
<button onclick="myFunction()">test</button>

<script>
function myFunction() {
    document.getElementById("myArea").coords = "100,60,3";
    document.getElementById("demo").innerHTML = "change";
}
</script>

</body>
</html>

The code above is rendered as follows: