fix: transformChanged emit

src/sdk/cover/index.js

@@ -121,7 +121,7 @@ export const enter = (dom, isLocal) => {
             var camera = viewport.camera
             var dom = viewer.renderArea
             if(tagLimitDis != void 0){
-                if(camera.position.distanceTo(worldPos) > tagLimitDis)return false
+                if(camera.position.distanceToSquared(worldPos) > Math.pow(tagLimitDis,2))return false
             } 
             
             
@@ -451,13 +451,26 @@ export const enter = (dom, isLocal) => {
                 model.addEventListener('changeSelect',(e)=>{
                     bus.emit('changeSelect',e.selected)
                 }) 
+                
+                let lastState={ } 
                 model.addEventListener('transformChanged',(e)=>{
-                    bus.emit('transformChanged', {
-                        position : model.position.clone(),
-                        scale: model.scale.x * 100,
-                        rotation: model.rotation.clone(),
-                        bottom: model.btmHeight
-                    })
+                    //console.log('transformChanged',model.position,model.scale.x, model.rotation,model.btmHeight)
+                    let msg = {}
+                    if(!lastState.position || !model.position.equals(lastState.position)){
+                        lastState.position = msg.position = model.position.clone() 
+                    }
+                    if(!lastState.rotation || !model.rotation.equals(lastState.rotation)){
+                        lastState.rotation = msg.rotation = model.rotation.clone()
+                    }
+                    if(lastState.scale == void 0 || model.scale.x * 100 != lastState.scale){
+                        lastState.scale = msg.scale = model.scale.x * 100
+                    }
+                    if(lastState.bottom == void 0 || model.btmHeight != lastState.bottom){
+                        lastState.bottom = msg.bottom = model.btmHeight
+                    }
+                    msg = Potree.Common.CloneObject(msg)
+                    console.log(msg)
+                    bus.emit('transformChanged', msg )
                 }) 
                 spliceFromArr(model,true)
                 bus.emit('loadDone')
@@ -523,6 +536,7 @@ export const enter = (dom, isLocal) => {
                      
                 },
                 changeBottom(z){
+                    console.log('changeBottom',z)
                     model && MergeEditor.setModelBtmHeight(model,z)
                     model.dispatchEvent('transformChanged') //改了position */
                 },
@@ -531,6 +545,7 @@ export const enter = (dom, isLocal) => {
                     //if(MergeEditor.selected == model){
                         //console.log('pos',pos.x, pos.y, pos.z)
                     //} 
+                    console.log('changePosition',pos.x, pos.y, pos.z)
                     model && model.position.copy(pos)
                     model.dispatchEvent({type:'position_changed'}) 
                 }, 
@@ -538,7 +553,7 @@ export const enter = (dom, isLocal) => {
                     //if(MergeEditor.selected == model){
                         //console.log('rot', rot.x, rot.y, rot.z)
                     //}
-                 
+                    console.log('changeRotation',rot.x, rot.y, rot.z)
                     model && model.rotation.setFromVector3(rot) 
                     model.dispatchEvent({type:'rotation_changed'})  
                 },