使用 panzoom 时如何最初将图像居中放置在行内块容器中？

Question

我想将图像的初始位置设置为居中，我该怎么做？我不想做 CSS 居中，因为它只会在第一次应用时始终应用我希望将位置设置为容器的居中。

我需要保持样式 #scene {display: inline-block;} 否则边界内的平移会中断。

我如何才能在最初加载时将此图像居中

    const element = document.querySelector('#scene');
    let panZoomController = panzoom(element, {
      bounds: true,
      boundsPadding: 0.1
    });

.image-outer-wrapper {
  border: 3px solid red;
  overflow: hidden;
  height: 500px;
}

img {
  cursor: move;
  display: flex;
  justify-content: center;
}

#scene {
  display: inline-block;
}

<script src="https://unpkg.com/panzoom@8.1.0/dist/panzoom.js"></script>
<div class="image-outer-wrapper">
  <div id="scene">
    <img src="https://www.probytes.net/wp-content/uploads/2018/01/5-1.png">
  </div>
</div>

Answer 1

这将使 img 在其容器内居中：

#scene {
    display: flex;
    justify-content: center;
}

Answer 2

这里：

<style>
.image-outer-wrapper {
  border: 3px solid red;
  overflow: hidden;
  height: 500px;
}

img {
  cursor: move;
}

#scene {
  display: flex;
    justify-content: center;
}

</style>
<div class="image-outer-wrapper">

    <div id="scene">
      <img src="https://www.probytes.net/wp-content/uploads/2018/01/5-1.png">

    </div>

  </div>

Answer 3

试试这个

<style>
.image-outer-wrapper {
  border: 3px solid red;
  overflow: hidden;
  height: 500px;
}

img {
  cursor: move;
  width: 100%;
}

#scene {
  position: absolute;
  width:400px;
  left: 50%;
  margin-left:-200px;
  display:block;
}
</style>
  <div class="image-outer-wrapper">

    <div id="scene">
      <img src="https://www.probytes.net/wp-content/uploads/2018/01/5-1.png">

    </div>

  </div>

Answer 4

您可以使用zoomAbs设置初始位置。比例需要不同于 1（不知道为什么）所以我做了 0.9

let element = document.querySelector('#scene');
var s = (document.querySelector('.image-outer-wrapper').offsetWidth - element.offsetWidth) ;


let panZoomController = panzoom(element, {
  bounds: true,
  boundsPadding: 0.1
}).zoomAbs(
  6*s, // initial x position
  0, // initial y position
  0.9 // initial zoom 
);

.image-outer-wrapper {
  border: 3px solid red;
  overflow: hidden;
  height: 300px;
}

img {
  cursor: move;
}

#scene {
  display: inline-block;
}

<script src="https://unpkg.com/panzoom@8.1.0/dist/panzoom.js"></script>
<div class="image-outer-wrapper">
  <div id="scene">
    <img src="https://www.probytes.net/wp-content/uploads/2018/01/5-1.png">
  </div>
</div>

Answer 5

找到函数的移动感谢@Temani Afif 的帮助

let element = document.querySelector('#scene');
var s = (document.querySelector('.image-outer-wrapper').offsetWidth /2) - (element.offsetWidth / 2);


let panZoomController = panzoom(element, {
  bounds: true,
  boundsPadding: 0.1
});

panZoomController.moveTo(s, 0);

.image-outer-wrapper {
  border: 3px solid red;
  overflow: hidden;
  height: 300px;
}

img {
  cursor: move;
}

#scene {
  display: inline-block;
}

<script src="https://unpkg.com/panzoom@8.1.0/dist/panzoom.js"></script>
<div class="image-outer-wrapper">
  <div id="scene">
    <img src="https://www.probytes.net/wp-content/uploads/2018/01/5-1.png">
  </div>
</div>

使用 panzoom 时如何最初将图像居中放置在行内块容器中？

How to initially center an image inside inline-block container when using panzoom?

panzoom