Matrix.Scale(Double, Double) Matrix.Scale(Double, Double) Matrix.Scale(Double, Double) Matrix.Scale(Double, Double) Method

定義

在這個 Matrix 結構之前加上指定的縮放向量。Appends the specified scale vector to this Matrix structure.

public:
 void Scale(double scaleX, double scaleY);
public void Scale (double scaleX, double scaleY);
member this.Scale : double * double -> unit
Public Sub Scale (scaleX As Double, scaleY As Double)

參數

scaleX
Double Double Double Double

要沿著 X 軸縮放這個 Matrix 的值。The value by which to scale this Matrix along the x-axis.

scaleY
Double Double Double Double

要沿著 Y 軸縮放這個 Matrix 的值。The value by which to scale this Matrix along the y-axis.

範例

下列範例顯示如何調整Matrix結構。The following example shows how to scale a Matrix structure.


private Matrix scaleExample()
{
    Matrix myMatrix = new Matrix(5, 10, 15, 20, 25, 30);
    
    // Scale myMatrix by a horizontal factor of 2
    // and a vertical factor of 4 about the origin.
    // After this operation,
    // myMatrix is equal to (10, 40, 30, 80, 50, 120)
    myMatrix.Scale(2, 4);
    
    return myMatrix;

}

private Matrix scaleAboutPointExample()
{
    Matrix myMatrix = new Matrix(5, 10, 15, 20, 25, 30);
    
    // Scale myMatrix by a horizontal factor of 2
    // and a vertical factor of 4 about the 
    // point (100,100).
    // After this operation,
    // myMatrix is equal to (10, 40, 30, 80, -50, -180)
    myMatrix.ScaleAt(2, 4, 100, 100);
    
    return myMatrix;

}        

適用於

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