diff --git a/src/designer/Viewport.ts b/src/designer/Viewport.ts
index 3bb69c2..fbecc70 100644
--- a/src/designer/Viewport.ts
+++ b/src/designer/Viewport.ts
@@ -4,7 +4,7 @@ import { AxesHelper, GridHelper, OrthographicCamera, Raycaster, Scene, Vector3,
 import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls'
 import EsDragControls from './model2DEditor/EsDragControls'
 import Stats from 'three/examples/jsm/libs/stats.module'
-import type WorldModel from '@/designer/WorldModel.ts'
+import type WorldModel from '@/model/WorldModel.ts'
 import $ from 'jquery'
 import { reactive, watch } from 'vue'
 import MouseMoveInspect from '@/designer/model2DEditor/tools/MouseMoveInspect.ts'
diff --git a/src/designer/WorldModel.ts b/src/model/WorldModel.ts
similarity index 100%
rename from src/designer/WorldModel.ts
rename to src/model/WorldModel.ts
diff --git a/src/designer/example1.js b/src/model/example1.js
similarity index 68%
rename from src/designer/example1.js
rename to src/model/example1.js
index b7ac2da..77c3e94 100644
--- a/src/designer/example1.js
+++ b/src/model/example1.js
@@ -15,8 +15,33 @@ export default {
   },
   item: [
     {
-      name: 'f1',
-      items: []
+      name: 'f1', type: 'floor', uuid: 'f1',
+      items: [
+        {
+          uuid: 'measure-group', type: 'group', items: [
+            {
+              uuid: 'p1',
+              type: 'measure',
+              category: 'line',
+              pos: [],
+              rotation: [0, 0, 0],
+              scale: [1, 1, 1],
+              link: ['p2']
+            },
+            {
+              uuid: 'p2',
+              type: 'measure',
+              category: 'line',
+              pos: [],
+              rotation: [0, 0, 0],
+              scale: [1, 1, 1],
+              link: ['p3']
+            },
+            { uuid: 'p3', type: 'measure', category: 'line', pos: [], rotation: [0, 0, 0], scale: [1, 1, 1], link: [] }
+          ]
+        }
+
+      ]
     }
   ],
   elevator: [],
diff --git a/src/modelItem/line/LineMeta.ts b/src/model/itemTypeDefine/line/LineMeta.ts
similarity index 100%
rename from src/modelItem/line/LineMeta.ts
rename to src/model/itemTypeDefine/line/LineMeta.ts
diff --git a/src/model/itemTypeDefine/measure/MeasureMeta.ts b/src/model/itemTypeDefine/measure/MeasureMeta.ts
new file mode 100644
index 0000000..195915c
--- /dev/null
+++ b/src/model/itemTypeDefine/measure/MeasureMeta.ts
@@ -0,0 +1,7 @@
+import { defineItemType } from '@/runtime/DefineItem.ts'
+
+export default defineItemType({
+  name: 'measure',
+  label: '测量工具',
+  category: 'line'
+})
\ No newline at end of file
diff --git a/src/modelItem/point/PointMeta.ts b/src/model/itemTypeDefine/point/PointMeta.ts
similarity index 100%
rename from src/modelItem/point/PointMeta.ts
rename to src/model/itemTypeDefine/point/PointMeta.ts
diff --git a/src/modelItem/store/QueueMeta.ts b/src/model/itemTypeDefine/store/QueueMeta.ts
similarity index 100%
rename from src/modelItem/store/QueueMeta.ts
rename to src/model/itemTypeDefine/store/QueueMeta.ts
diff --git a/src/runtime/DefineItem.ts b/src/runtime/DefineItem.ts
index cfc9ab6..56de6bb 100644
--- a/src/runtime/DefineItem.ts
+++ b/src/runtime/DefineItem.ts
@@ -1,7 +1,7 @@
 /**
  * 定义一个 物流单元
  */
-export class ItemDefine {
+export class ItemTypeDefine {
   option!: ItemOption
 
   constructor(option: ItemOption) {
@@ -20,9 +20,9 @@ export interface ItemOption {
 /**
  * 定义一个 物流单元
  */
-export function defineItem(option: ItemOption): Promise<ItemDefine> {
+export function defineItemType(option: ItemOption): Promise<ItemTypeDefine> {
   return new Promise((resolve, reject) => {
-    const item = new ItemDefine(option)
+    const item = new ItemTypeDefine(option)
     resolve(item)
   })
 }
\ No newline at end of file
diff --git a/src/types/global.d.ts b/src/types/global.d.ts
index 7dac369..092c219 100644
--- a/src/types/global.d.ts
+++ b/src/types/global.d.ts
@@ -1,7 +1,7 @@
 import _ from 'lodash'
 import $ from 'jquery'
 import type System from '@/runtime/System'
-import type WorldModel from '@/designer/WorldModel'
+import type WorldModel from '@/model/WorldModel'
 
 declare global {
   const $: $
diff --git a/src/views/ModelMainInit.ts b/src/views/ModelMainInit.ts
index d996274..15e00f7 100644
--- a/src/views/ModelMainInit.ts
+++ b/src/views/ModelMainInit.ts
@@ -15,7 +15,7 @@ import ToolsMenu from '@/designer/menus/Tools.ts'
 import Model3DView from '@/designer/menus/Model3DView.ts'
 import { forEachMenu } from '@/runtime/DefineMenu.ts'
 import { normalizeShortKey } from '@/utils/webutils.ts'
-import WorldModel from '@/designer/WorldModel.ts'
+import WorldModel from '@/model/WorldModel.ts'
 
 /**
  * 初始化模型编辑器的基础控件