Index: trunk/src/box_dir.h
===================================================================
--- trunk/src/box_dir.h	(nonexistent)
+++ trunk/src/box_dir.h	(revision 32638)
@@ -0,0 +1,84 @@
+/*
+ *                            COPYRIGHT
+ *
+ *  pcb-rnd, interactive printed circuit board design
+ *  (this file is based on PCB, interactive printed circuit board design)
+ *  Copyright (C) 1994,1995,1996 Thomas Nau
+ *  Copyright (C) 1998,1999,2000,2001 harry eaton
+ *
+ *  this file, box.h, was written and is
+ *  Copyright (c) 2001 C. Scott Ananian.
+ *
+ *  Copyright (C) 2017,2020 Tibor 'Igor2' Palinkas
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ *  Contact:
+ *    Project page: http://repo.hu/projects/pcb-rnd
+ *    lead developer: http://repo.hu/projects/pcb-rnd/contact.html
+ *    mailing list: pcb-rnd (at) list.repo.hu (send "subscribe")
+ *
+ *
+ *  Old contact info:
+ *  harry eaton, 6697 Buttonhole Ct, Columbia, MD 21044 USA
+ *  haceaton@aplcomm.jhuapl.edu
+ *
+ */
+
+
+#ifndef RND_BOX_DIR_H
+#define RND_BOX_DIR_H
+
+
+typedef enum {
+	RND_NORTH = 0, RND_EAST = 1, RND_SOUTH = 2, RND_WEST = 3,
+	RND_NE = 4, RND_SE = 5, RND_SW = 6, RND_NW = 7, RND_ANY_DIR = 8
+} rnd_direction_t;
+
+#define RND_BOX_ROTATE_TO_NORTH(box, dir) \
+do { rnd_coord_t t;\
+	switch(dir) {\
+	case RND_EAST: \
+		t = (box).X1; (box).X1 = (box).Y1; (box).Y1 = -(box).X2;\
+		(box).X2 = (box).Y2; (box).Y2 = -t; break;\
+	case RND_SOUTH: \
+		t = (box).X1; (box).X1 = -(box).X2; (box).X2 = -t;\
+		t = (box).Y1; (box).Y1 = -(box).Y2; (box).Y2 = -t; break;\
+	case RND_WEST: \
+		t = (box).X1; (box).X1 = -(box).Y2; (box).Y2 = (box).X2;\
+		(box).X2 = -(box).Y1; (box).Y1 = t; break;\
+	case RND_NORTH: break;\
+	default: assert(0);\
+	}\
+} while (0)
+
+#define RND_BOX_ROTATE_FROM_NORTH(box, dir) \
+do { rnd_coord_t t;\
+	switch(dir) {\
+	case RND_WEST: \
+		t = (box).X1; (box).X1 = (box).Y1; (box).Y1 = -(box).X2;\
+		(box).X2 = (box).Y2; (box).Y2 = -t; break;\
+	case RND_SOUTH: \
+		t = (box).X1; (box).X1 = -(box).X2; (box).X2 = -t;\
+		t = (box).Y1; (box).Y1 = -(box).Y2; (box).Y2 = -t; break;\
+	case RND_EAST: \
+		t = (box).X1; (box).X1 = -(box).Y2; (box).Y2 = (box).X2;\
+		(box).X2 = -(box).Y1; (box).Y1 = t; break;\
+	case RND_NORTH: break;\
+	default: assert(0);\
+	}\
+} while (0)
+
+#endif
Index: trunk/src_plugins/autoplace/autoplace.c
===================================================================
--- trunk/src_plugins/autoplace/autoplace.c	(revision 32637)
+++ trunk/src_plugins/autoplace/autoplace.c	(revision 32638)
@@ -52,6 +52,7 @@
 #include "autoplace.h"
 #include <librnd/core/box.h>
 #include <librnd/core/compat_misc.h>
+#include "box_dir.h"
 #include "data.h"
 #include "draw.h"
 #include <librnd/core/error.h>
Index: trunk/src_plugins/autoroute/autoroute.c
===================================================================
--- trunk/src_plugins/autoroute/autoroute.c	(revision 32637)
+++ trunk/src_plugins/autoroute/autoroute.c	(revision 32638)
@@ -69,6 +69,7 @@
 #include "autoroute.h"
 #include <librnd/core/box.h>
 #include "draw.h"
+#include "box_dir.h"
 #include <librnd/core/error.h>
 #include "find.h"
 #include <librnd/core/heap.h>
Index: trunk/src_plugins/autoroute/mtspace.c
===================================================================
--- trunk/src_plugins/autoroute/mtspace.c	(revision 32637)
+++ trunk/src_plugins/autoroute/mtspace.c	(revision 32638)
@@ -50,6 +50,7 @@
 #include <librnd/core/box.h>
 #include <librnd/core/heap.h>
 #include <librnd/poly/rtree.h>
+#include "box_dir.h"
 #include "mtspace.h"
 #include "vector.h"
 #include <librnd/poly/rtree2_compat.h>