X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=libctsupport%2Fxform.cpp;h=219eb9b7c1bca2d515adec5653a77900d5ad865b;hb=dc034c9d0b7d9c3874a324a4c2c189a02945adc8;hp=abf47500ad675a5b15ac96e8ac253c69d4fb5182;hpb=12e2c29153a0f55ac23bdeec06b404638672985b;p=ctsim.git

diff --git a/libctsupport/xform.cpp b/libctsupport/xform.cpp
index abf4750..219eb9b 100644
--- a/libctsupport/xform.cpp
+++ b/libctsupport/xform.cpp
@@ -2,7 +2,7 @@
 **  This is part of the CTSim program
 **  Copyright (C) 1983-2000 Kevin Rosenberg
 **
-**  $Id: xform.cpp,v 1.2 2000/06/19 19:04:05 kevin Exp $
+**  $Id: xform.cpp,v 1.4 2000/12/04 04:44:03 kevin Exp $
 **
 **  This program is free software; you can redistribute it and/or modify
 **  it under the terms of the GNU General Public License (version 2) as
@@ -122,24 +122,25 @@ rot_mtx2 (GRFMTX_2D m, const double theta)
 }
 
 void 
-mult_mtx2 (GRFMTX_2D m1, GRFMTX_2D m2, GRFMTX_2D result)
+mult_mtx2 (const GRFMTX_2D m1, const GRFMTX_2D m2, GRFMTX_2D result)
 {
   GRFMTX_2D temp;
 
-  for (int row = 0; row < 3; row++)
+  for (int row = 0; row < 3; row++) {
     for (int col = 0; col < 3; col++) {
       temp[row][col] = 0;
       for (int calc = 0; calc < 3; calc++)
-	temp[row][col] += m1[row][calc] * m2[calc][col];
-    }
-
-  for (int row = 0; row < 3; row++)
+	    temp[row][col] += m1[row][calc] * m2[calc][col];
+    }
+  }
+
+  for (int r = 0; r < 3; r++)
     for (int col = 0; col < 3; col++)
-      result[row][col] = temp[row][col];
+      result[r][col] = temp[r][col];
 }
 
 void 
-xform_mtx2 (GRFMTX_2D m, double& x, double& y)
+xform_mtx2 (const GRFMTX_2D m, double& x, double& y)
 {
   double xt = x * m[0][0] + y * m[1][0] + m[2][0];
   double yt = x * m[0][1] + y * m[1][1] + m[2][1];