X-Git-Url: http://git.osdn.jp/view?a=blobdiff_plain;ds=sidebyside;f=include%2Fla.h;h=0ef6ee8210432e27fd937acc843e620ac555fcde;hb=6f30c5ef957e1775ff7e39a41e1e1aa99864dbd1;hp=bc6b32269d39ae2faee48e278ef43c3066bd8a1a;hpb=2e272c8234ed76c70119a71a8371c4c48b8d7a33;p=meshio%2Fmeshio.git

diff --git a/include/la.h b/include/la.h
index bc6b322..0ef6ee8 100644
--- a/include/la.h
+++ b/include/la.h
@@ -47,6 +47,16 @@ struct Vector3
 	{
 		return x==rhs.x && y==rhs.y && z==rhs.z;
 	}
+
+	Vector3 operator+(const Vector3 &rhs)
+	{
+		return Vector3(x+rhs.x, y+rhs.y, z+rhs.z);
+	}
+
+	Vector3 operator-(const Vector3 &rhs)
+	{
+		return Vector3(x-rhs.x, y-rhs.y, z-rhs.z);
+	}
 };
 #ifndef SWIG
 inline std::ostream &operator<<(std::ostream &os, const Vector3 &rhs)
@@ -93,6 +103,11 @@ struct Quaternion
 	Quaternion(float _x, float _y, float _z, float _w)
 		: x(_x), y(_y), z(_z), w(_w)
 		{}
+
+	float dot(const Quaternion &rhs)
+	{
+		return x*rhs.x + y*rhs.y + z*rhs.z + w*rhs.w;
+	}
 };
 #ifndef SWIG
 inline std::ostream &operator<<(std::ostream &os, const Quaternion &rhs)