From 42f10f1bc7780ddc8199e3207a51c32684e36832 Mon Sep 17 00:00:00 2001
From: schnetter <>
Date: Wed, 3 Apr 2002 14:33:00 +0000
Subject: Forgot to add this file.

darcs-hash:20020403143351-07bb3-b4bc8e30582548b27e7879592dcbedbeb182e356.gz
---
 CarpetAttic/CartGrid3D/src/Symmetry.h | 57 +++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 CarpetAttic/CartGrid3D/src/Symmetry.h

(limited to 'CarpetAttic')

diff --git a/CarpetAttic/CartGrid3D/src/Symmetry.h b/CarpetAttic/CartGrid3D/src/Symmetry.h
new file mode 100644
index 000000000..ba1bfeb73
--- /dev/null
+++ b/CarpetAttic/CartGrid3D/src/Symmetry.h
@@ -0,0 +1,57 @@
+/*@@
+   @header    Symmetry.h
+   @date      Sun 7th Mar 1999
+   @author    Gerd Lanfermann
+   @desc 
+   The extensions to the GH structure for 3D grid symmetry Treatment
+   We'll have six int array for every GF, which holds a flag for which symmetry or 
+   (physical) bnd-condition to apply at the grid faces.
+
+   * These tables are set by SetSymmetry(GF,int,int,int) 
+     during initialization. 
+   * Default values ?
+   * The information is used during evolution by Einstein_DoBound(GF), 
+     Einstein_DoSym(GF)
+   @enddesc
+   @history
+   @endhistory
+   @version $Header: /home/eschnett/C/carpet/Carpet/CarpetAttic/CartGrid3D/src/Attic/Symmetry.h,v 1.1 2002/04/03 16:33:51 schnetter Exp $
+ @@*/
+
+#ifndef _SYMMETRY_H_
+#define _SYMMETRY_H_
+
+#define GFSYM_UNSET -42
+#define GFSYM_NOSYM -41
+
+typedef struct Symmetry 
+{
+
+  /* Symmetry[0..GF-1][0..dim-1] */
+  /* in each direction [0,..dim-1], this will hold the symmetry 
+     operation across that plane, iff the grid layout requires this.
+     this compares to the {sx,sy,sz} of Cactus3.2  */
+  int **GFSym;
+
+} SymmetryGHex;
+
+#ifdef __cplusplus
+extern "C" 
+{
+#endif
+
+int SetCartSymVI(cGH *GH, int *sym, int vi);
+int SetCartSymGI(cGH *GH, int *sym, int vi);
+int SetCartSymVN(cGH *GH, int *sym, const char *vn); 
+int SetCartSymGN(cGH *GH, int *sym, const char *vn); 
+
+int CartSymVI(cGH *GH, int vi);
+int CartSymGI(cGH *GH, int gi);
+int CartSymVN(cGH *GH, const char *vn);
+int CartSymGN(cGH *GH, const char *gn);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYMMETRY_H_ */
-- 
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