diff --git a/public/index.html b/public/index.html
index b8b5b9f..8760ed8 100644
--- a/public/index.html
+++ b/public/index.html
@@ -15,7 +15,7 @@
 
     <script>
         window.readNetFile = async () => {
-            const inputVcdFile = 'full_adder.json';
+            const inputVcdFile = 'IF_ID.json';
             const skin = 'dide.skin';
             const r1 = await fetch(inputVcdFile);
             const r2 = await fetch(skin);
@@ -23,7 +23,7 @@
             const skinBinary = await r2.arrayBuffer();
             return [ netJson, skinBinary ];
         }
-        window.moduleName = 'full_adder';
+        window.moduleName = 'IF_ID';
         // window.avoidWasm = 'avoid.wasm';
     </script>
 </head>
diff --git a/src/components/setting/index.vue b/src/components/setting/index.vue
index 10f2cf1..726153f 100644
--- a/src/components/setting/index.vue
+++ b/src/components/setting/index.vue
@@ -75,6 +75,7 @@
                         {{ t('bold-multi-width-wire') }}
                     </span>
                     <el-switch
+                        @change="onBoldMultiWidthWireChange"
                         v-model="globalSetting.boldMultiWidthWire"
                         active-text="ON"
                         inactive-text="OFF"
@@ -166,12 +167,13 @@
 </template>
 
 <script setup>
-import { globalSetting } from '@/hook/global';
+import { globalLookup, globalSetting } from '@/hook/global';
 import { reactive, defineComponent, watch, ref, onMounted } from 'vue';
 import { useI18n } from 'vue-i18n';
 import { languageSetting } from './language';
 import { crossDotStyle, onConnectStyleChange } from './cross-dot-style';
 import { colorManager, onCellColorChange, onGeneralColorChange, predefinedColors } from './color';
+import { LINE_WIDTH } from '@/hook/render/layout';
 
 defineComponent({ name: "dide-setting" });
 const { t, locale } = useI18n();
@@ -199,7 +201,6 @@ function onlanguagechange(code) {
 }
 
 function onRenderArrowChange() {
-    const rootStyles = getComputedStyle(document.documentElement);
     if (globalSetting.renderArrow) {
         document.documentElement.style.setProperty(`--line-arrow-opacity`, '1');
     } else {
@@ -207,6 +208,26 @@ function onRenderArrowChange() {
     }
 }
 
+function onBoldMultiWidthWireChange() {
+    const netlist = globalLookup.netlistRender;
+    const renderView = netlist.renderView;
+    const stack = [renderView];
+    while (stack.length > 0) {
+        const view = stack.pop();
+        view.wireRender.lineSelections
+            .attr('stroke-width', d => {
+                console.log('enter');
+                
+                const incrementWidth = globalSetting.boldMultiWidthWire ? 2 : 0;
+                return d.width > 1 ? LINE_WIDTH + incrementWidth: LINE_WIDTH;
+            });
+        for (const id of view.id2children.keys()) {
+            const subView = view.getChild(id);
+            stack.push(subView);
+        }
+    }
+}
+
 onMounted(() => {
     colorManager.initColor();
 });
diff --git a/src/hook/render/index.js b/src/hook/render/index.js
index a36ba9f..17dafea 100644
--- a/src/hook/render/index.js
+++ b/src/hook/render/index.js
@@ -15,6 +15,7 @@ import { dotConnect } from './yosys';
 import { CrossDotRender } from './cross-dot';
 import { RangeTreeMap } from '../algorithm/range-tree';
 import { ConstantRender } from './constant';
+import { RenderViewNode } from './render-view';
 
 export class NetlistRender {
     /**
@@ -209,15 +210,16 @@ export class NetlistRender {
         // 底层模块
         const topModule = this.nameToModule.get(this.topModuleName);
 
-        // 生成连接
-        await this.renderLine(g, computedLayout, topModule);
-        
-        // 生成实体
-        await this.renderEntity(g, computedLayout, topModule);
-
         // svg 挂载为全局注册的 selection
         this.selection = svg;
-        this.g = g;
+
+        this.renderView = new RenderViewNode(g);
+
+        // 生成连接
+        await this.renderLine(this.renderView, computedLayout, topModule);
+        
+        // 生成实体
+        await this.renderEntity(this.renderView, computedLayout, topModule);
 
         // 注册平移和缩放
         this.registerRenderTransform(g);
@@ -235,10 +237,10 @@ export class NetlistRender {
 
     /**
      * @description 绘制实体
-     * @param {d3.Selection} parentSelection 
+     * @param {RenderViewNode} view 
      * @param {import('../jsdoc').ElkNode} computedLayout 
      */
-    async renderEntity(parentSelection, computedLayout) {
+    async renderEntity(view, computedLayout) {
         // node 可能是如下的几类
         // - module 的 port
         // - 器件（基础器件 & 例化模块）
@@ -246,11 +248,11 @@ export class NetlistRender {
         const skinManager = globalLookup.skinManager;
 
         // 创建各个主要实体的 render
-        this.cellRender = new CellRender(parentSelection, this);
-        this.portRender = new PortRender(parentSelection, this);
-        this.instantiationRender = new InstantiationRender(parentSelection, this);
-        this.connectionRender = new ConnectionRender(parentSelection, this);
-        this.constantRender = new ConstantRender(parentSelection, this);
+        view.cellRender = new CellRender(view.g, this);
+        view.portRender = new PortRender(view.g, this);
+        view.instantiationRender = new InstantiationRender(view.g, this);
+        view.connectionRender = new ConnectionRender(view.g, this);
+        view.constantRender = new ConstantRender(view.g, this);
 
         for (const node of computedLayout.children) {
             // 只计算形体的，因为 连接点 非常小，几乎不影响布局
@@ -260,42 +262,40 @@ export class NetlistRender {
             if (skin) {
                 // 具有 skin 的器件
                 const element = skin.meta.svgDoc.documentElement.cloneNode(true);
-                this.cellRender.addAsD3DataItem(node, element);
+                view.cellRender.addAsD3DataItem(node, element);
             } else {
                 if (node.renderType === 'port') {
-                    this.portRender.addAsD3DataItem(node);
+                    view.portRender.addAsD3DataItem(node);
                 } else if (node.renderType === 'instance') {
                     // 没有 skin 的器件或者端口
-                    this.instantiationRender.addAsD3DataItem(node);
+                    view.instantiationRender.addAsD3DataItem(node);
                 } else if (node.renderType === 'constant') {
-                    this.constantRender.addAsD3DataItem(node);
+                    view.constantRender.addAsD3DataItem(node);
                 }
             }
 
             // 如果存在 port，绘制 port
             for (const cellPort of node.ports || []) {
-                this.connectionRender.addAsD3DataItem(cellPort, node); 
+                view.connectionRender.addAsD3DataItem(cellPort, node); 
             }
         }
 
-        const ports = this.portRender.render();
-        const instances = this.instantiationRender.render();
-        const cells = this.cellRender.render();
-        const connections = this.connectionRender.render();
-        const constants = this.constantRender.render();
-        
-        return { ports, instances, cells, connections };
+        view.portRender.render();
+        view.instantiationRender.render();
+        view.cellRender.render();
+        view.connectionRender.render();
+        view.constantRender.render();
     }
 
     /**
      * @description 绘制连线和交叉点
-     * @param {d3.Selection} parentSelection 
+     * @param {RenderViewNode} view 
      * @param {ElkNode} computedLayout 
      * @param {Module} module
      */
-    async renderLine(parentSelection, computedLayout, module) {
-        this.wireRender = new WireRender(parentSelection, this);
-        this.crossDotRender = new CrossDotRender(parentSelection, this);
+    async renderLine(view, computedLayout, module) {
+        view.wireRender = new WireRender(view.g, this);
+        view.crossDotRender = new CrossDotRender(view.g, this);
 
         // 建立关于 port 的索引
         const id2port = new Map();
@@ -316,7 +316,7 @@ export class NetlistRender {
                     points.push(point);
                 }
                 points.push(section.endPoint);
-                this.wireRender.addAsD3DataItems(points, edge, id2port, width);
+                view.wireRender.addAsD3DataItems(points, edge, id2port, width);
 
                 // 加入 range tree 中
                 for (let i = 0; i < points.length - 1; ++ i) {
@@ -337,14 +337,14 @@ export class NetlistRender {
                 for (const point of section.bendPoints || []) {
                     const degree = rangeTree.getDegree(point);
                     if (degree >= 3) {
-                        this.crossDotRender.addAsD3DataItem(point.x, point.y);
+                        view.crossDotRender.addAsD3DataItem(point.x, point.y);
                     }
                 }
             }
         }
 
-        this.wireRender.render();
-        this.crossDotRender.render();
+        view.wireRender.render();
+        view.crossDotRender.render();
     }
 
     /**
@@ -614,34 +614,31 @@ export class NetlistRender {
         this.zoom.translateBy(this.selection, deltaX, deltaY);
 
         const svg = this.selection;
-        const g = this.g;
+        const g = this.renderView.g;
 
         g.selectAll('*').remove();
+        this.renderView.id2children.clear();
 
         // 开始递归地进行渲染
         const renderStack = [
             {
-                parentSelection: g,
+                view: this.renderView,
                 layout: computedLayout
             }
         ];
 
         while (renderStack.length > 0) {
             const s = renderStack.pop();
-            const parentSelection = s.parentSelection;
+            const view = s.view;
             const layout = s.layout;
 
             const layoutName = layout.renderName || this.topModuleName;
             const module = this.nameToModule.get(layoutName);
             
-            await this.renderLine(parentSelection, layout, module);
-            const { instances } = await this.renderEntity(parentSelection, layout, module);
+            await this.renderLine(view, layout, module);
+            await this.renderEntity(view, layout, module);
 
-            const id2selection = new Map();
-            instances.each(function(data) {
-                const selection = d3.select(this);
-                id2selection.set(data.id, selection);
-            });
+            const id2selection = view.instantiationRender.id2selection;
 
             // 将需要渲染子图的部分扔进渲染器
             for (const node of layout.children || []) {
@@ -649,8 +646,10 @@ export class NetlistRender {
                 
                 if (subChildren.length > 0) {
                     const selection = id2selection.get(node.id);
+                    const subView = new RenderViewNode(selection);
+                    view.setChild(node.id, subView);
                     renderStack.push({
-                        parentSelection: selection,
+                        view: subView,
                         layout: node
                     });
                 }
@@ -702,37 +701,41 @@ export class NetlistRender {
         this.zoom.translateBy(this.selection, deltaX, deltaY);
 
         const svg = this.selection;
-        const g = this.g;
+        const g = this.renderView.g;
 
         g.selectAll('*').remove();
+        this.renderView.id2children.clear();
 
         // 开始递归地进行渲染
         const renderStack = [
             {
-                parentSelection: g,
+                view: this.renderView,
                 layout: computedLayout
             }
         ];
 
         while (renderStack.length > 0) {
             const s = renderStack.pop();
-            const parentSelection = s.parentSelection;
+            const view = s.view;
             const layout = s.layout;
-            await this.renderLine(parentSelection, layout);
-            const { instances } = await this.renderEntity(parentSelection, layout);
-            const id2selection = new Map();
-            instances.each(function(data) {
-                const selection = d3.select(this);
-                id2selection.set(data.id, selection);
-            });
+
+            const layoutName = layout.renderName || this.topModuleName;
+            const module = this.nameToModule.get(layoutName);
+
+            await this.renderLine(view, layout, module);
+            await this.renderEntity(view, layout, module);
+            
+            const id2selection = view.instantiationRender.id2selection;
 
             // 将需要渲染子图的部分扔进渲染器
             for (const node of layout.children || []) {
                 const subChildren = node.children || [];
                 if (subChildren.length > 0) {
                     const selection = id2selection.get(node.id);
+                    const subView = new RenderViewNode(selection);
+                    view.id2children.set(node.id, subView);
                     renderStack.push({
-                        parentSelection: selection,
+                        view: subView,
                         layout: node
                     });
                 }
diff --git a/src/hook/render/instantiation.js b/src/hook/render/instantiation.js
index e0b4353..3d6ff51 100644
--- a/src/hook/render/instantiation.js
+++ b/src/hook/render/instantiation.js
@@ -235,6 +235,15 @@ export class InstantiationRender {
             });
             
         this.selections = instantiationSelections;
+
+        const id2selection = new Map();
+        instantiationSelections.each(function(data) {
+            const selection = d3.select(this);
+            id2selection.set(data.id, selection);
+        });
+
+        this.id2selection = id2selection;
+
         return instantiationSelections;
     }
 
diff --git a/src/hook/render/wire.js b/src/hook/render/wire.js
index 514fb5c..caba64d 100644
--- a/src/hook/render/wire.js
+++ b/src/hook/render/wire.js
@@ -118,7 +118,6 @@ export class WireRender {
             .attr("fill", "none")
             .attr('stroke', 'var(--wire-color)')
         
-        this.lineSelections = lineSelections;
         const arrows = new Map();
 
         let arrowSelections = this.selection.selectAll('svg.line-arrow')
@@ -196,21 +195,23 @@ export class WireRender {
         });
 
         
-        if (globalSetting.renderAnimation) {
-            lineSelections = lineSelections
-                .transition()
-                .duration(1000);
-        }
+        // if (globalSetting.renderAnimation) {
+        //     lineSelections = lineSelections
+        //         .transition()
+        //         .duration(1000);
+        // }
 
         lineSelections
             .attr('stroke-width', d => {
-                const incrementWidth = globalSetting.boldMultiWidthWire ? 1 : 0;
+                const incrementWidth = globalSetting.boldMultiWidthWire ? 2 : 0;
                 return d.width > 1 ? LINE_WIDTH + incrementWidth: LINE_WIDTH;
             })
             .each(function (data) {
                 const selection = d3.select(this);
                 // const manager = _this.createDataManager(selection, data);
             });
+        
+        this.lineSelections = lineSelections;
     }
 
     /**