使用jquery-panzoom来实现图片或元素的放大缩小

<div class="wrapper">
    					<a class="btn btn-md" ui-turn-off="AllIssueImgView" style="position: absolute;top: 10px;left: 0px;font-size: x-large;color: white;z-index: 1100"><i class="fa fa-angle-left"></i></a>
     					<div class="modal-body">
      <div class="panzoomContainer">
      <div class="parent" style="position: fixed;left: 0px;top:0px;bottom:0px" ui-swipe-right="swipePreview('prev')" ui-swipe-left="swipePreview('next')">
        <div class="panzoom">
          <img class="issueImg" ng-src="{{activeImg.base64Str == null ? '/issues/bigImage/'+activeImg : activeImg.base64Str}}"  style="width: 500px;height: 600px;">
        </div>
      </div>
       
    </div>
   
      
      					</div>
    				</div>
<div class="wrapper">
    					<a