Matrix.CreateRotationZYX Method (EulerAngles)

Matrix CreateRotationZYX Method (EulerAngles)

Delta Engine Documentation

Namespace: DeltaEngine.Datatypes
Assembly: DeltaEngine (in DeltaEngine.dll) Version: 1.1.1.0 (1.1.1)

Syntax

public static Matrix CreateRotationZYX(
	EulerAngles eulerAngles
)

public static Matrix CreateRotationZYX(
	EulerAngles eulerAngles
)

Public Shared Function CreateRotationZYX ( 
	eulerAngles As EulerAngles
) As Matrix

Public Shared Function CreateRotationZYX ( 
	eulerAngles As EulerAngles
) As Matrix

public:
static Matrix CreateRotationZYX(
	EulerAngles eulerAngles
)

public:
static Matrix CreateRotationZYX(
	EulerAngles eulerAngles
)

static member CreateRotationZYX : 
        eulerAngles : EulerAngles -> Matrix

static member CreateRotationZYX : 
        eulerAngles : EulerAngles -> Matrix

Parameters

eulerAngles: Type: DeltaEngine.Datatypes EulerAngles

Return Value

Type: Matrix

Remarks

Tests: DeltaEngine.Tests.Datatypes.MatrixTests

Examples

2 unit tests call DeltaEngine.Datatypes.Matrix.CreateRotationZYX(DeltaEngine.Datatypes.EulerAngles)

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[Test]
public void RotateMatrix()
{
    var matrix1 = new Matrix(1, 0, 0, 0, 0, 0, 1, 0, 0, -1, 0, 0, 0, 0, 0, 1);
    var matrix2 = new Matrix(0, 0, -1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1);
    var matrix3 = new Matrix(0, 1, 0, 0, -1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
    var matrix4 = matrix1 * (matrix2 * matrix3);
    Assert.IsTrue(matrix1.IsNearlyEqual(Matrix.CreateRotationZYX(90, 0, 0)));
    Assert.IsTrue(matrix2.IsNearlyEqual(Matrix.CreateRotationZYX(0, 90, 0)));
    Assert.IsTrue(matrix3.IsNearlyEqual(Matrix.CreateRotationZYX(0, 0, 90)));
    Assert.IsTrue(matrix4.IsNearlyEqual(Matrix.CreateRotationZYX(90, 90, 90)));
}

[Test]
public void RotateMatrix()
{
    var matrix1 = new Matrix(1, 0, 0, 0, 0, 0, 1, 0, 0, -1, 0, 0, 0, 0, 0, 1);
    var matrix2 = new Matrix(0, 0, -1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1);
    var matrix3 = new Matrix(0, 1, 0, 0, -1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
    var matrix4 = matrix1 * (matrix2 * matrix3);
    Assert.IsTrue(matrix1.IsNearlyEqual(Matrix.CreateRotationZYX(90, 0, 0)));
    Assert.IsTrue(matrix2.IsNearlyEqual(Matrix.CreateRotationZYX(0, 90, 0)));
    Assert.IsTrue(matrix3.IsNearlyEqual(Matrix.CreateRotationZYX(0, 0, 90)));
    Assert.IsTrue(matrix4.IsNearlyEqual(Matrix.CreateRotationZYX(90, 90, 90)));
}

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[Test]
public void TransformPosition()
{
    var position = new Vector3D(3, 5, 2);
    var translation = Matrix.CreateTranslation(2, 0, 5);
    var rotation = Matrix.CreateRotationZYX(0, 90, 0);
    var scale = Matrix.CreateScale(3, 3, 3);
    var transformation = scale * rotation * translation;
    var result = translation * (rotation * (scale * position));
    Assert.IsTrue((transformation * position).IsNearlyEqual(result));
}

[Test]
public void TransformPosition()
{
    var position = new Vector3D(3, 5, 2);
    var translation = Matrix.CreateTranslation(2, 0, 5);
    var rotation = Matrix.CreateRotationZYX(0, 90, 0);
    var scale = Matrix.CreateScale(3, 3, 3);
    var transformation = scale * rotation * translation;
    var result = translation * (rotation * (scale * position));
    Assert.IsTrue((transformation * position).IsNearlyEqual(result));
}