增添PTree结构

src/Model/SVModel.ts

@@ -3,7 +3,7 @@ import { ModelOption, Style } from "../options";
 import { BoundingRect } from "../Common/boundingRect";
 import { EdgeConfig, Item, NodeConfig } from "@antv/g6-core";
 import { Point } from "@antv/g-base";
-import { Graph } from "_@antv_g6-pc@0.5.0@@antv/g6-pc";
+import { Graph } from "@antv/g6-pc";
 
 
 

src/RegisteredShape/indexedNode.ts

@@ -39,7 +39,7 @@ export default registerNode('indexed-node', {
         }
 
         const indexCfg = cfg.indexCfg;
-        const offset = 20;
+        const offset = Number(cfg.style.offset) || 20;
         const indexPositionMap: { [key: string]: (width: number, height: number) => { x: number, y: number } } = {
             top: (width: number, height: number) => ({ x: width, y: height / 2 - offset }),
             right: (width: number, height: number) => ({ x: width * 1.5 + offset, y: height }),