public static void Run()
{
// ExStart:ConcatenateQuaternions
// The path to the documents directory.
string MyDir = RunExamples.GetDataDir();
Scene scene = new Scene();
Quaternion q1 = Quaternion.FromEulerAngle(Math.PI * 0.5, 0, 0);
Quaternion q2 = Quaternion.FromAngleAxis(-Math.PI * 0.5, Vector3.XAxis);
// Concatenate q1 and q2. q1 and q2 rotate alone x-axis with same angle but different direction,
// So the concatenated result will be identity quaternion.
Quaternion q3 = q1.Concat(q2);
// Create 3 cylinders to represent each quaternion
Node cylinder = scene.RootNode.CreateChildNode("cylinder-q1", new Cylinder(0.1, 1, 2));
cylinder.Transform.Rotation = q1;
cylinder.Transform.Translation = new Vector3(-5, 2, 0);
cylinder = scene.RootNode.CreateChildNode("cylinder-q2", new Cylinder(0.1, 1, 2));
cylinder.Transform.Rotation = q2;
cylinder.Transform.Translation = new Vector3(0, 2, 0);
cylinder = scene.RootNode.CreateChildNode("cylinder-q3", new Cylinder(0.1, 1, 2));
cylinder.Transform.Rotation = q3;
cylinder.Transform.Translation = new Vector3(5, 2, 0);
MyDir = MyDir + "test_out.fbx";
// Save to file
scene.Save(MyDir, FileFormat.FBX7400ASCII);
// ExEnd:ConcatenateQuaternions
Console.WriteLine("\nQuaternions concatenated successfully.\nFile saved at " + MyDir);
}
