diff --git a/src/visual.ts b/src/visual.ts
index f3481ed..dc6bdb2 100644
--- a/src/visual.ts
+++ b/src/visual.ts
@@ -51,6 +51,8 @@ export class Visual implements IVisual {
     private selectionManager: powerbi.extensibility.ISelectionManager;
     private innerContainer!: HTMLDivElement;
     private animationPlaying: boolean = true;//控制动画暂停
+    private data:IPicsScrollerData;
+    private containerSize:number[];
     constructor(options: VisualConstructorOptions) {
         this.container = options.element;
         this.host=options.host;
@@ -73,28 +75,30 @@ export class Visual implements IVisual {
         this.container.appendChild(this.innerContainer);
     }
     public update(options: VisualUpdateOptions) {
-        let settings = Visual.parseSettings(options && options.dataViews && options.dataViews[0]);
-        this.settings=settings;
-        this.initial();
-        //处理输入
 
+        let settings = Visual.parseSettings(options && options.dataViews && options.dataViews[0]);
         let data: IPicsScrollerData = { urls: <string[]>options.dataViews[0].categorical.categories[0].values };
+        let containerSize=[options.viewport.width,options.viewport.height];
+
+        //处理输入
         //feet
         settings.animation.stepLength=(settings.animation.stepLength>=0&&settings.animation.stepLength<=100)?settings.animation.stepLength:1;
         let feet = options.viewport.width / 100 * settings.animation.stepLength;
         //interval
         settings.animation.interval=settings.animation.interval>0?settings.animation.interval:100;
-        let interval = this.settings.animation.interval;
+        let interval = settings.animation.interval;
+
+
         //rowGap
         settings.layout.rowGap=(settings.layout.rowGap>=0&&settings.layout.rowGap<=100)?settings.layout.rowGap:0;
         let rowGap = options.viewport.height / 100 * settings.layout.rowGap;
         //columnGap
         settings.layout.columnGap=(settings.layout.columnGap>=0&&settings.layout.columnGap<=100)?settings.layout.columnGap:0;
-        let columnGap = options.viewport.width / 100 * this.settings.layout.columnGap;
-
+        let columnGap = options.viewport.width / 100 * settings.layout.columnGap;
         //rowsCount
         settings.layout.rowsCount=settings.layout.rowsCount>=1?Math.floor(settings.layout.rowsCount):1;
-        let rowsCount=this.settings.layout.rowsCount;
+        let rowsCount=settings.layout.rowsCount;
+
 
         if (!(data.urls.length > 0) || !(rowsCount! > 0)) {
             console.info("picsScroller error: (source_url.length,rowsCount) ", data.urls.length + "_" + rowsCount);
@@ -103,6 +107,28 @@ export class Visual implements IVisual {
         if (rowsCount > data.urls.length) {
             rowsCount = data.urls.length;
         };
+
+        console.debug("data",JSON.stringify(data));
+        console.debug("this.data",JSON.stringify(this.data));
+        console.debug("settings",JSON.stringify(settings));
+        console.debug("this.settings",JSON.stringify(this.settings));
+        console.debug("containerSize",JSON.stringify(containerSize));
+        console.debug("this.containerSize",JSON.stringify(this.containerSize));
+        let justifyEqual=function(a:any,b:any){
+            return JSON.stringify(a)==JSON.stringify(b);
+        };
+        //判断是否完全无需刷新
+        if(justifyEqual(this.data,data)&&justifyEqual(this.settings,settings)&&justifyEqual(this.containerSize,containerSize)){
+            return;
+        }
+
+        //必要的类
+        this.initial();
+        this.data=data;
+        this.settings=settings;
+        this.containerSize=containerSize;
+
+        //数据转换
         let brandsCount = data.urls.length;
         let unitsCountPerRow = Math.floor(brandsCount / rowsCount);
         let logoUrlsArr: string[][] = [];