Matrix.Scale(Double, Double) 方法
定義
重要
部分資訊涉及發行前產品,在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊,不做任何明確或隱含的瑕疵擔保。
在這個 Matrix 結構之前加上指定的縮放向量。
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
範例
下列範例示範如何調整 Matrix 結構。
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;
}