我只是想知道如何使用jquery放大图片,
像这个网站,
当你点击大图像时它会放大,你可以移动光标并在放大时看到图片的其他部分,
如果有人能给我看一个链接或让我朝着正确的方向前进,我会很感激.
谢谢
Wal*_*jad 19
它们不会放大,实际发生的是当您单击缩放文本时,div内的图像将被该图像的较大版本替换.溢出设置为隐藏.
当您移动光标时,使用一些聪明的JavaScript和DOM处理,图像只需相对移动,创建实际放大图片的效果.
我将尝试为您创建一个简单的示例.
编辑
抱歉需要一段时间,但这里是:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<title>Example</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script type="text/javascript">
$(function() {
var fullWidth = 864; // Width in pixels of full-sized image
var fullHeight = 648; // Height in pixels of full-sized image
var thumbnailWidth = 389; // Width in pixels of thumbnail image
var thumbnailHeight = 292; // Height in pixels of thumbnail image
// Set size of div
$('#picture').css({
'width': thumbnailWidth+'px',
'height': thumbnailHeight+'px'
});
// Hide the full-sized picture
$('#full').hide();
// Toggle pictures on click
$('#picture').click(function() {
$('#thumbnail').toggle();
$('#full').toggle();
});
// Do some calculations
$('#picture').mousemove(function(e) {
var mouseX = e.pageX - $(this).attr('offsetLeft');
var mouseY = e.pageY - $(this).attr('offsetTop');
var posX = (Math.round((mouseX/thumbnailWidth)*100)/100) * (fullWidth-thumbnailWidth);
var posY = (Math.round((mouseY/thumbnailHeight)*100)/100) * (fullHeight-thumbnailHeight);
$('#full').css({
'left': '-' + posX + 'px',
'top': '-' + posY + 'px'
});
});
});
</script>
<style type="text/css">
#picture {
overflow: hidden;
position: relative;
border: 1px solid #000000;
}
#thumbnail {
cursor: pointer;
}
#full {
position: relative;
cursor: crosshair;
}
</style>
</head>
<body>
<div id="picture">
<img alt="" id="thumbnail" src="http://img202.imageshack.us/img202/8403/93629325.jpg" />
<img alt="" id="full" src="http://img111.imageshack.us/img111/4734/tbmecsekyellowflower.jpg" />
</div>
</body>
</html>
Run Code Online (Sandbox Code Playgroud)
您需要相应地调整缩略图和全尺寸图像的宽度和高度.但只需复制粘贴上面的内容即可查看imageshack上托管的图像示例.