javascript - 打开Seadragon选择

Question

将选择插件添加到我的 OpenSeadragon 项目中，它已经与基本功能配合得很好，我确实启动了它，但是更改所选区域的大小出现了问题。是这样显示的：-

这是我为启动它所做的。

var openSeadragon, selection;
document.addEventListener('DOMContentLoaded', function() {
      openSeadragon = OpenSeadragon({
        id: "openSeadragon1", 
        prefixUrl: "images/",
        tileSources: [],
        sequenceMode: true, 
        showReferenceStrip: true, 
        visibilityRatio: 0.2, 
        constrainDuringPan: true, 
        defaultZoomLevel: 0.8,
        minZoomLevel: 0.3, 
        maxZoomLevel: 10, 
        showNavigator: true, 
        nextButton: "next", 
        previousButton: "previous",
        minZoomImageRatio: 0.1, //of viewer size
        crossOriginPolicy: 'Anonymous',
      });
      selection = openSeadragon.selection({
        onSelection: function(rect) {
          alert(rect + ' Center point: ' + rect.getCenter() + ' Degree rotation: ' + rect.getDegreeRotation());
        }
      });

如何解决？