Matrix.RotateAt(Double, Double, Double) Método

Definição

Gira esta matriz sobre o ponto especificado.Rotates this matrix about the specified point.

public:
 void RotateAt(double angle, double centerX, double centerY);
public void RotateAt (double angle, double centerX, double centerY);
member this.RotateAt : double * double * double -> unit
Public Sub RotateAt (angle As Double, centerX As Double, centerY As Double)

Parâmetros

angle
Double

O ângulo, em graus, pelo qual girar essa matriz.The angle, in degrees, by which to rotate this matrix.

centerX
Double

A coordenada X do ponto sobre qual girar essa matriz.The x-coordinate of the point about which to rotate this matrix.

centerY
Double

A coordenada Y do ponto sobre qual girar essa matriz.The y-coordinate of the point about which to rotate this matrix.

Exemplos

O exemplo a seguir mostra como girar um Matrix sobre um ponto especificado.The following example shows how to rotate a Matrix about a specified point.

private Matrix rotateAboutPointExample()
{
    
    // Creating a Matrix structure.
    Matrix myMatrix = new Matrix(5, 10, 15, 20, 25, 30);
    
    // Rotate the matrix 90 degrees about the point (100,100).
    // myMatrix becomes equal to (-10, 4, -20, 15, 170, 25).
    myMatrix.RotateAt(90, 100, 100);
    
    return myMatrix; 
}

Aplica-se a