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Sharing how to use jQuery image zoom plug-in smartZoom

小云云
小云云Original
2017-12-29 13:43:533174browse

e-smart-zoom-jquery.js plug-in, this article briefly introduces the use of jQuery image zoom plug-in smartZoom and the solutions to problems encountered through example code. It is very good and has reference value. Friends who need it can refer to it. Well, I hope it helps everyone.

Plug-in description: By hovering the mouse over the picture and rolling the mouse wheel, the picture can be enlarged or reduced.

smartZoom use

For example, the above code: 

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>joannau</title>
  <style>
    * {
      padding: 0;
      margin: 0;
    }
    .imgCon {
      width: 800px;
      height: 500px;
      margin: 40px auto;
      border: 2px solid #000;
    }
    .imgp {
      width: 100%;
      height: 100%;
    }
    .imgCon img{
      width: 100%;
    }
  </style>
</head>
<body>
<p class="imgCon">
  <p class="imgp">
    <img src="./assets/zoomSmall.jpg" alt="">
  </p>
</p>
<script src="../src/jquery-1.11.0.min.js"></script>
<script src="../src/e-smart-zoom-jquery.js"></script>
<script>
  $(function () {
    $(".imgCon img").smartZoom()
  })
</script>
</body>
</html>

Just use the smartZoom method directly on the img object.

View the effect:

Zoom

##Perfect, this was successfully used.

But many people will encounter the problem of image position offset when using smartZoom. The effect is as follows:

The border is missing. If you look at the code again, you will find:

It turns out that top and left are causing trouble. The key to solving the problem at this time is to nest a p container outside the img image. As follows: 

<p class="imgp">
    <img src="./assets/zoomSmall.jpg" alt="">
  </p>
At this point, the position offset problem can be solved.

Other API:

// 方法中可以通过设置top，left等参数来指定图片初始参数；
$(".imgCon img").smartZoom({
      'left': '50px'
    })
// 通过传入‘destroy‘来取消缩放；
 $(".imgCon img").smartZoom('destroy')
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