r7061: initial property settings

[ctsim.git] / libctsupport / xform.cpp

diff --git a/libctsupport/xform.cpp b/libctsupport/xform.cpp
index abf47500ad675a5b15ac96e8ac253c69d4fb5182..1134f0a1d3c8c8f51bdaabecfce4d95e9253a420 100644 (file)
--- a/libctsupport/xform.cpp
+++ b/libctsupport/xform.cpp
@@ -1,8 +1,8 @@
 /*****************************************************************************
 **  This is part of the CTSim program
-**  Copyright (C) 1983-2000 Kevin Rosenberg
+**  Copyright (c) 1983-2001 Kevin Rosenberg
 **
-**  $Id: xform.cpp,v 1.2 2000/06/19 19:04:05 kevin Exp $
+**  $Id$
 **
 **  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];
+           temp[row][col] += m1[row][calc] * m2[calc][col];
     }
+  }
 
-  for (int row = 0; row < 3; row++)
+  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];