edit

src/Group.js

@@ -88,6 +88,19 @@ export default class Group {
     this.app.emitChange()
   }
 
+  // 给指定元素编组
+  screenDogroup(elements = []){
+    if(elements.length < 1) return
+    let groupId = uuidv4()
+    let groupElement = elements
+    this.groupIdToElementList[groupId] = groupElement
+    groupElement.forEach(element => {
+      element.setGroupId(groupId)
+    })
+    this.app.render.render()
+    this.app.emitChange()
+  }
+
   // 取消编组
   ungroup() {
     if (

src/index.js

@@ -187,7 +187,7 @@ class TinyWhiteboard extends EventEmitter {
       this[method] = this.selection[method].bind(this.selection)
     })
     // 编组类
-    ;['dogroup', 'ungroup'].forEach(method => {
+    ;['dogroup', 'ungroup', 'screenDogroup'].forEach(method => {
       this[method] = this.group[method].bind(this.group)
     })
     // 网格类