diff --git a/lib/zin/wg/think3c/js/v1.js b/lib/zin/wg/think3c/js/v1.js
index 110e12e75c..c2e89011ad 100644
--- a/lib/zin/wg/think3c/js/v1.js
+++ b/lib/zin/wg/think3c/js/v1.js
@@ -215,6 +215,25 @@ function isSameLine(currentItem, nextItem, offset)
     return currentItem[1] == nextItem[1] || Math.abs(currentItem[1] - nextItem[1]) < offset;
 }
 
+function groupPositions(data, offset)
+{
+    const groupedData = new Map();
+
+    /* 分组数据 */
+    /* Group data. */
+    data.forEach(item => {
+        const key = item[2];
+        if (!groupedData.has(key)) groupedData.set(key, []);
+        groupedData.get(key).push(item);
+    });
+
+    /* 合并临近的行 */
+    /* Merge adjacent rows. */
+    const mergedGroups = [];
+
+    return mergedGroups;
+}
+
 /**
  * 使用偏移量计算位置。
  * Calculate positions with offset.