Question: getting coords from an image.

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muhilan
getting coords from an image.
2 Answer(s)      5 years and 5 months ago
Posted in : JavaScript Questions

how to get coordinates dynamically(in run time) from an image?? pls help me....

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December 13, 2011 at 3:41 PM




December 13, 2011 at 3:48 PM


<html>
<head>
<script language="JavaScript">
function show(event){
    pos_x = event.offsetX?(event.offsetX):event.pageX-document.getElementById("pointer_div").offsetLeft;
    pos_y = event.offsetY?(event.offsetY):event.pageY-document.getElementById("pointer_div").offsetTop;
    document.getElementById("cross").style.left = (pos_x-1) ;
    document.getElementById("cross").style.top = (pos_y-15) ;
    document.getElementById("cross").style.visibility = "visible" ;
    document.pointform.form_x.value = pos_x;
    document.pointform.form_y.value = pos_y;
}
</script>
</head>
<body>
<form name="pointform" method="post">
<div id="pointer_div" onclick="show(event)" style = "background-image:url('temple.jpg');width:500px;height:333px;">
<img src="point.gif" id="cross" style="position:relative;visibility:hidden;z-index:2;"></div>
You pointed on x = <input type="text" name="form_x" size="4" /> - y = <input type="text" name="form_y" size="4" />
</form> 
</body>
</html>

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