fix #11385 #8534

src/chart/tree/TreeSeries.js

@@ -47,7 +47,18 @@ export default SeriesModel.extend({
 
         treeOption.leaves = leaves;
 
-        var tree = Tree.createTree(root, this, treeOption);
+        var tree = Tree.createTree(root, this, treeOption, beforeLink);
+
+        function beforeLink(nodeData) {
+            nodeData.wrapMethod('getItemModel', function (model, idx) {
+                var node = tree.getNodeByDataIndex(idx);
+                var leavesModel = node.getLeavesModel();
+                if (node.children.length === 0 || (node.children.length !== 0 && node.isExpand === false)) {
+                    model.parentModel = leavesModel;
+                }
+                return model;
+            });
+        }
 
         var treeDepth = 0;
 

src/data/Tree.js

@@ -472,7 +472,7 @@ Tree.prototype = {
  * @param {Array.<Object>} treeOptions.leaves
  * @return module:echarts/data/Tree
  */
-Tree.createTree = function (dataRoot, hostModel, treeOptions) {
+Tree.createTree = function (dataRoot, hostModel, treeOptions, beforeLink) {
 
     var tree = new Tree(hostModel, treeOptions.levels, treeOptions.leaves);
     var listData = [];
@@ -519,6 +519,8 @@ Tree.createTree = function (dataRoot, hostModel, treeOptions) {
 
     tree.update();
 
+    beforeLink && beforeLink(list);
+
     return tree;
 };