diff --git a/src/app/ui/collection-tools/collection-tools.component.scss b/src/app/ui/collection-tools/collection-tools.component.scss
index 04144b9..7c8c861 100644
--- a/src/app/ui/collection-tools/collection-tools.component.scss
+++ b/src/app/ui/collection-tools/collection-tools.component.scss
@@ -98,7 +98,7 @@
   }
   .functionalDomainRight {
     border: 1px solid #464646;
-    width: 12%;
+    width: 230px;
     right: 0;
   }
   //左侧导航栏显示隐藏
diff --git a/src/app/ui/collection-tools/collection-tools.component.ts b/src/app/ui/collection-tools/collection-tools.component.ts
index 5b8bdf6..2adc441 100644
--- a/src/app/ui/collection-tools/collection-tools.component.ts
+++ b/src/app/ui/collection-tools/collection-tools.component.ts
@@ -894,13 +894,26 @@ export class CollectionToolsComponent implements OnInit {
     this.canvas.setIconVisible(iconVisibleArr,!node.isLook)
   }
 
+  //计算 可视区域内宽度, 是否缩放背景图
+  backGroundScale () {
+    let that = this
+    let dad = document.querySelector('.functionalDomainContent').clientWidth
+    let imgWidth = dad - 460 //可是区域内 宽度
+    let img = new Image()
+    img.src = this.selectingSitePlan.imageUrl;  
+    img.onload = function(){
+      img.width > imgWidth? that.canvas.setBackgroundScale(imgWidth/img.width) : null
+    };
+  }
+
   //封装 刷新 tree 数据
   renovateTreeData (isRefresh:boolean = true) {
+    this.allFireElements[this.allFireElements.length-1].children = []
     isRefresh? this.canvas.refresh() : null
     isRefresh? this.canvasData.isChange = false : null //服务中 数据是否改动 改为false
     isRefresh? this.isShowProperty = true : null
     isRefresh? this.isShowAttribute = true : null
-    this.allFireElements[this.allFireElements.length-1].children = []
+    this.selectingSitePlan.imageUrl? this.backGroundScale() : null
 
     let beforeOneId = this.selectingSitePlan.id || '' //当前 选中 平面图 楼层/区域 id
     let companyBuildingData = JSON.parse(JSON.stringify( this.canvasData.originalcompanyBuildingData || {} )) // 当前 单位/建筑 数据 
@@ -1320,6 +1333,7 @@ export class CollectionToolsComponent implements OnInit {
         let isSuccess = this.renovateSitePlan()
         isSuccess.then(res=>{
           this.canvas.refreshBackgroundImage()
+          this.backGroundScale()
         })
         const config = new MatSnackBarConfig();
         config.verticalPosition = 'top';
@@ -1331,6 +1345,7 @@ export class CollectionToolsComponent implements OnInit {
         let isSuccess = this.renovateBuilding()
         isSuccess.then(res=>{
           this.canvas.refreshBackgroundImage()
+          this.backGroundScale()
         })
         const config = new MatSnackBarConfig();
         config.verticalPosition = 'top';