From add20389f64cea06a22278e36a70917f6fd324d8 Mon Sep 17 00:00:00 2001
From: Andreas Antener <antener_a@gmx.ch>
Date: Fri, 5 Jan 2018 11:30:35 +0100
Subject: [PATCH] conversion: added rotation +45 degree in pitch

---
 src/lib/conversion/rotation.cpp | 7 +++++++
 src/lib/conversion/rotation.h   | 2 ++
 2 files changed, 9 insertions(+)

diff --git a/src/lib/conversion/rotation.cpp b/src/lib/conversion/rotation.cpp
index 9ebf0586e8..145b3b54c7 100644
--- a/src/lib/conversion/rotation.cpp
+++ b/src/lib/conversion/rotation.cpp
@@ -265,5 +265,12 @@ rotate_3f(enum Rotation rot, float &x, float &y, float &z)
 			z = -0.156434f * tmpx +  0.000000f * tmpy +  0.987688f * tmpz;
 			return;
 		}
+
+	case ROTATION_PITCH_45: {
+			tmp = HALF_SQRT_2 * x + HALF_SQRT_2 * z;
+			z = HALF_SQRT_2 * z - HALF_SQRT_2 * x;
+			x = tmp;
+			return;
+		}
 	}
 }
diff --git a/src/lib/conversion/rotation.h b/src/lib/conversion/rotation.h
index 0a327e4b62..e37a1dfdce 100644
--- a/src/lib/conversion/rotation.h
+++ b/src/lib/conversion/rotation.h
@@ -81,6 +81,7 @@ enum Rotation {
 	ROTATION_YAW_293_PITCH_68_ROLL_90 = 30,
 	ROTATION_PITCH_90_ROLL_270	 = 31,
 	ROTATION_PITCH_9_YAW_180 = 32,
+	ROTATION_PITCH_45 = 33,
 	ROTATION_MAX
 };
 
@@ -124,6 +125,7 @@ const rot_lookup_t rot_lookup[] = {
 	{ 90,  68, 293 },
 	{270,  90,   0 },
 	{  0,   9, 180 },
+	{ 0,   45,   0 },
 };
 
 /**