From bd3518637cb9477313427745eff4038e0dafedfe Mon Sep 17 00:00:00 2001
From: frohlich <frohlich>
Date: Sat, 2 Dec 2006 15:57:55 +0000
Subject: [PATCH] Modified Files: 	SGVec2.hxx SGVec3.hxx SGVec4.hxx: Add
 inf norm function

---
 simgear/math/SGVec2.hxx | 7 +++++++
 simgear/math/SGVec3.hxx | 7 +++++++
 simgear/math/SGVec4.hxx | 7 +++++++
 3 files changed, 21 insertions(+)

diff --git a/simgear/math/SGVec2.hxx b/simgear/math/SGVec2.hxx
index 6205e126..31538758 100644
--- a/simgear/math/SGVec2.hxx
+++ b/simgear/math/SGVec2.hxx
@@ -267,6 +267,13 @@ T
 norm1(const SGVec2<T>& v)
 { return fabs(v(0)) + fabs(v(1)); }
 
+/// The inf-norm of the vector
+template<typename T>
+inline
+T
+normI(const SGVec2<T>& v)
+{ return SGMisc<T>::max(fabs(v(0)), fabs(v(1))); }
+
 /// The euclidean norm of the vector, that is what most people call length
 template<typename T>
 inline
diff --git a/simgear/math/SGVec3.hxx b/simgear/math/SGVec3.hxx
index df742744..4d3100b5 100644
--- a/simgear/math/SGVec3.hxx
+++ b/simgear/math/SGVec3.hxx
@@ -346,6 +346,13 @@ T
 norm1(const SGVec3<T>& v)
 { return fabs(v(0)) + fabs(v(1)) + fabs(v(2)); }
 
+/// The inf-norm of the vector
+template<typename T>
+inline
+T
+normI(const SGVec3<T>& v)
+{ return SGMisc<T>::max(fabs(v(0)), fabs(v(1)), fabs(v(2))); }
+
 /// Vector cross product
 template<typename T>
 inline
diff --git a/simgear/math/SGVec4.hxx b/simgear/math/SGVec4.hxx
index b8223a7a..d610a6ca 100644
--- a/simgear/math/SGVec4.hxx
+++ b/simgear/math/SGVec4.hxx
@@ -314,6 +314,13 @@ T
 norm1(const SGVec4<T>& v)
 { return fabs(v(0)) + fabs(v(1)) + fabs(v(2)) + fabs(v(3)); }
 
+/// The inf-norm of the vector
+template<typename T>
+inline
+T
+normI(const SGVec4<T>& v)
+{ return SGMisc<T>::max(fabs(v(0)), fabs(v(1)), fabs(v(2)), fabs(v(2))); }
+
 /// The euclidean norm of the vector, that is what most people call length
 template<typename T>
 inline
-- 
2.39.5