/// <summary> /// Multiplies two matrices. /// </summary> /// <param name="a">A <see cref="Matrix2D"/> instance.</param> /// <param name="b">A <see cref="Matrix2D"/> instance.</param> /// <returns>A new <see cref="Matrix2D"/> instance containing the result.</returns> public static Matrix2D operator*(Matrix2D a, Matrix2D b) { return(Matrix2D.Multiply(a, b)); }
/// <summary> /// Transforms a given vector by a matrix. /// </summary> /// <param name="matrix">A <see cref="Matrix2D"/> instance.</param> /// <param name="vector">A <see cref="Vector2"/> instance.</param> /// <returns>A new <see cref="Vector2"/> instance containing the result.</returns> public static Vector2 operator*(Matrix2D matrix, Vector2 vector) { return(Matrix2D.Transform(matrix, vector)); }
/// <summary> /// Subtracts a matrix from a matrix. /// </summary> /// <param name="a">A <see cref="Matrix2D"/> instance.</param> /// <param name="b">A <see cref="Matrix2D"/> instance.</param> /// <returns>A new <see cref="Matrix2D"/> instance containing the difference.</returns> public static Matrix2D operator-(Matrix2D a, Matrix2D b) { return(Matrix2D.Subtract(a, b)); }
/// <summary> /// Subtracts a scalar from a matrix. /// </summary> /// <param name="a">A <see cref="Matrix2D"/> instance.</param> /// <param name="s">A scalar.</param> /// <returns>A new <see cref="Matrix2D"/> instance containing the difference.</returns> public static Matrix2D operator-(Matrix2D a, double s) { return(Matrix2D.Subtract(a, s)); }
/// <summary> /// Adds a matrix and a scalar. /// </summary> /// <param name="a">A <see cref="Matrix2D"/> instance.</param> /// <param name="s">A scalar.</param> /// <returns>A new <see cref="Matrix2D"/> instance containing the sum.</returns> public static Matrix2D operator+(double s, Matrix2D a) { return(Matrix2D.Add(a, s)); }
/// <summary> /// Adds two matrices. /// </summary> /// <param name="a">A <see cref="Matrix2D"/> instance.</param> /// <param name="b">A <see cref="Matrix2D"/> instance.</param> /// <returns>A new <see cref="Matrix2D"/> instance containing the sum.</returns> public static Matrix2D operator+(Matrix2D a, Matrix2D b) { return(Matrix2D.Add(a, b)); }
/// <summary> /// Transforms a given vector by a matrix and put the result in a vector. /// </summary> /// <param name="matrix">A <see cref="Matrix2D"/> instance.</param> /// <param name="vector">A <see cref="Vector2"/> instance.</param> /// <param name="result">A <see cref="Vector2"/> instance to hold the result.</param> public static void Transform(Matrix2D matrix, Vector2 vector, ref Vector2 result) { result.X = (matrix.M11 * vector.X) + (matrix.M12 * vector.Y); result.Y = (matrix.M21 * vector.X) + (matrix.M22 * vector.Y); }
/// <summary> /// Transforms a given vector by a matrix. /// </summary> /// <param name="matrix">A <see cref="Matrix2D"/> instance.</param> /// <param name="vector">A <see cref="Vector2"/> instance.</param> /// <returns>A new <see cref="Vector2"/> instance containing the result.</returns> public static Vector2 Transform(Matrix2D matrix, Vector2 vector) { return(new Vector2( (matrix.M11 * vector.X) + (matrix.M12 * vector.Y), (matrix.M21 * vector.X) + (matrix.M22 * vector.Y))); }
/// <summary> /// Initializes a new instance of the <see cref="Matrix2D"/> class using a given matrix. /// </summary> public Matrix2D(Matrix2D m) { _m11 = m.M11; _m12 = m.M12; _m21 = m.M21; _m22 = m.M22; }