diff --git a/sourceCode/workpieceHolePositioning.cpp b/sourceCode/workpieceHolePositioning.cpp
index 7a95067..65f5674 100644
--- a/sourceCode/workpieceHolePositioning.cpp
+++ b/sourceCode/workpieceHolePositioning.cpp
@@ -8,7 +8,7 @@
 //version 1.0.0 : base version release to customer
 //version 1.0.2 : 添加了工件姿态（欧拉角输出)
 //version 1.1.0 : c对工件姿态规范化为中心点（操作点）加三个方向矢量
-std::string	m_strVersion = "1.1.0";
+std::string	m_strVersion = "1.1.1";
 const char* wd_workpieceHolePositioningVersion(void)
 {
 	return m_strVersion.c_str();
@@ -509,13 +509,13 @@ void wd_workpieceHolePositioning(
 
 		SVzNL3DPoint y_dir;
 		if (p0.center.y < p2.center.y)
-			y_dir = { p0.center.x - p2.center.x, p0.center.y - p2.center.y, 0 };
-		else
 			y_dir = { p2.center.x - p0.center.x, p2.center.y - p0.center.y, 0 };
+		else
+			y_dir = { p0.center.x - p2.center.x, p0.center.y - p2.center.y, 0 };
 		double modLen = sqrt(pow(y_dir.x, 2) + pow(y_dir.y, 2));
 		y_dir = { y_dir.x / modLen, y_dir.y / modLen, 0 };
 		a_workpiece.y_dir = { y_dir.x * 20 + a_workpiece.center.x, y_dir.y * 20 + a_workpiece.center.y, a_workpiece.center.z };
-		a_workpiece.z_dir = { a_workpiece.center.x, a_workpiece.center.y, a_workpiece.center.z - 20 };
+		a_workpiece.z_dir = { a_workpiece.center.x, a_workpiece.center.y, a_workpiece.center.z + 20 };
 
 		workpiecePositioning.push_back(a_workpiece);
 	}