AP_Math: Add conversion between inches of water to pascals

7 years ago · d568767164
1 changed files with 2 additions and 0 deletions
--- a/libraries/AP_Math/definitions.h
+++ b/libraries/AP_Math/definitions.h
@ -83,6 +83,8 @@ static const double WGS84_E = (sqrt(2 * WGS84_F - WGS84_F * WGS84_F));
				@@ -83,6 +83,8 @@ static const double WGS84_E = (sqrt(2 * WGS84_F - WGS84_F * WGS84_F));
 #define SSL_AIR_PRESSURE 101325.01576f // Pascal
 #define SSL_AIR_TEMPERATURE    288.15f // K

+#define INCH_OF_H2O_TO_PASCAL 248.84f
+
 /*
  use AP_ prefix to prevent conflict with OS headers, such as NuttX
  clock.h