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src/custom/viewer/ViewerNew.js

@@ -3444,7 +3444,7 @@ export class Viewer extends ViewerBase{
             let floorplanView = viewer.mainViewport.camera.type == 'OrthographicCamera'  
             if(!floorplanView){
                 let pano = this.images360.findNearestPano()
-                let dis = pano.position.distanceTo(this.mainViewport.camera.position)
+                let dis = pano?.position.distanceTo(this.mainViewport.camera.position)
                 if(dis > 3) floorplanView = true; //离远一点的平视希望也是全部加载好。勉强只能这么写
                 console.warn('floorplanView',floorplanView)
             }