From 1244807f7e57c68601c77d2e4c9cb31ba9d9de78 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Thu, 26 Sep 2013 22:19:59 +0200
Subject: [PATCH] 0001256: Order of operations for Matrix is nonintuitive,
 needs documentation

---
 src/Base/Matrix.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/Base/Matrix.cpp b/src/Base/Matrix.cpp
index af6adcfbb..fa3a1f468 100644
--- a/src/Base/Matrix.cpp
+++ b/src/Base/Matrix.cpp
@@ -205,7 +205,7 @@ void Matrix4D::rotX (double fAngle)
   clMat.dMtrx4D[1][1] =  fcos;  clMat.dMtrx4D[2][2] = fcos;
   clMat.dMtrx4D[1][2] = -fsin;  clMat.dMtrx4D[2][1] = fsin;
   
-  (*this) *= clMat;
+  (*this) = clMat * (*this);
 }
 
 void Matrix4D::rotY (double fAngle)
@@ -218,7 +218,7 @@ void Matrix4D::rotY (double fAngle)
   clMat.dMtrx4D[0][0] =  fcos;  clMat.dMtrx4D[2][2] = fcos;
   clMat.dMtrx4D[2][0] = -fsin;  clMat.dMtrx4D[0][2] = fsin;
   
-  (*this) *= clMat;
+  (*this) = clMat * (*this);
 }
 
 void Matrix4D::rotZ (double fAngle)
@@ -231,7 +231,7 @@ void Matrix4D::rotZ (double fAngle)
   clMat.dMtrx4D[0][0] =  fcos;  clMat.dMtrx4D[1][1] = fcos;
   clMat.dMtrx4D[0][1] = -fsin;  clMat.dMtrx4D[1][0] = fsin;
   
-  (*this) *= clMat;
+  (*this) = clMat * (*this);
 }
 
 void Matrix4D::rotLine (const Vector3d& rclVct, double fAngle)