如何通过移动触摸使Bootstrap carousel可伸缩/缩放，并保留默认的幻灯片行为？

<div id="myCarousel" class="carousel slide" data-ride="carousel">
  <!-- carousel内容 -->
</div>

<div class="carousel-inner">
  <div class="carousel-item active">
    <!-- 第一个幻灯片内容 -->
  </div>
  <div class="carousel-item">
    <!-- 第二个幻灯片内容 -->
  </div>
  <!-- 其他幻灯片项目 -->
</div>

<ol class="carousel-indicators">
  <li data-target="#myCarousel" data-slide-to="0" class="active"></li>
  <li data-target="#myCarousel" data-slide-to="1"></li>
  <!-- 其他指示器 -->
</ol>

<a class="carousel-control-prev" href="#myCarousel" role="button" data-slide="prev">
  <span class="carousel-control-prev-icon" aria-hidden="true"></span>
  <span class="sr-only">Previous</span>
</a>
<a class="carousel-control-next" href="#myCarousel" role="button" data-slide="next">
  <span class="carousel-control-next-icon" aria-hidden="true"></span>
  <span class="sr-only">Next</span>
</a>

$(document).ready(function() {
  var initialScale = 1; // 初始缩放比例
  var currentScale = 1; // 当前缩放比例
  var lastTouchDistance = 0; // 上一次触摸距离

  $("#myCarousel").on("touchstart", function(e) {
    var touches = e.originalEvent.touches;
    if (touches.length === 2) {
      lastTouchDistance = Math.hypot(touches[0].pageX - touches[1].pageX, touches[0].pageY - touches[1].pageY);
    }
  });

  $("#myCarousel").on("touchmove", function(e) {
    var touches = e.originalEvent.touches;
    if (touches.length === 2) {
      var touchDistance = Math.hypot(touches[0].pageX - touches[1].pageX, touches[0].pageY - touches[1].pageY);
      var scale = touchDistance / lastTouchDistance;
      currentScale = initialScale * scale;
      $(this).css("transform", "scale(" + currentScale + ")");
    }
  });

  $("#myCarousel").on("touchend", function() {
    initialScale = currentScale;
  });
});