X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=simgear%2Fconstants.h;h=b77a7965f00b442ffb27ed19f2a154c4a5b23772;hb=68eb7031e2dce999d112d0164fa28d4b8d66922e;hp=da6986e057bc0102cb01f4735c091f282e54b3e6;hpb=98a65b5d1dc5b74b23be27e9de614d8cb4130c95;p=simgear.git

diff --git a/simgear/constants.h b/simgear/constants.h
index da6986e0..b77a7965 100644
--- a/simgear/constants.h
+++ b/simgear/constants.h
@@ -2,7 +2,7 @@
 //
 // Written by Curtis Olson, started February 2000.
 //
-// Copyright (C) 2000  Curtis L. Olson  - curt@flightgear.org
+// Copyright (C) 2000  Curtis L. Olson - http://www.flightgear.org/~curt/
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Library General Public
@@ -30,10 +30,6 @@
 #define _SG_CONSTANTS_H
 
 
-#ifdef HAVE_CONFIG_H
-#  include <config.h>
-#endif
-
 #include <simgear/compiler.h>
 
 #ifdef SG_HAVE_STD_INCLUDES
@@ -110,24 +106,54 @@
 #define SG_METER_TO_FEET    3.28083989501312335958  
 
 /** Meters to Nautical Miles.  1 nm = 6076.11549 feet */
-#define SG_METER_TO_NM      0.00053995680
+#define SG_METER_TO_NM      0.0005399568034557235
 
 /** Nautical Miles to Meters */
 #define SG_NM_TO_METER      1852.0000
 
+/** Meters to Statute Miles. */
+#define SG_METER_TO_SM      0.0006213699494949496
+
+/** Statute Miles to Meters. */
+#define SG_SM_TO_METER      1609.3412196
+
 /** Radians to Nautical Miles.  1 nm = 1/60 of a degree */
 #define SG_NM_TO_RAD        0.00029088820866572159
 
 /** Nautical Miles to Radians */
 #define SG_RAD_TO_NM        3437.7467707849392526
 
+/** Miles per second to Knots */
+#define SG_MPS_TO_KT        1.9438444924406046432
+
+/** Knots to Miles per second */
+#define SG_KT_TO_MPS        0.5144444444444444444
+
+/** Miles per second to Miles per hour */
+#define SG_MPS_TO_MPH       2.2369362920544020312
+
+/** Miles per hour to Miles per second */
+#define SG_MPH_TO_MPS       0.44704
+
+/** Meters per second to Kilometers per hour */
+#define SG_MPS_TO_KMH       3.6
+
+/** Kilometers per hour to Miles per second */
+#define SG_KMH_TO_MPS       0.2777777777777777778
+
+/** Pascal to Inch Mercury */
+#define SG_PA_TO_INHG       0.0002952998330101010
+
+/** Inch Mercury to Pascal */
+#define SG_INHG_TO_PA       3386.388640341
+
+
 /** For divide by zero avoidance, this will be close enough to zero */
 #define SG_EPSILON 0.0000001
 
-
 /** Highest binobj format version we know how to read/write.  This starts at
  *  0 and can go up to 65535 */
-#define SG_BINOBJ_VERSION 5
+#define SG_BINOBJ_VERSION 6
 
 /** for backwards compatibility */
 #define SG_SCENERY_FILE_FORMAT "0.4"