Matrix.ScaleAt(Double, Double, Double, Double) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Scales this Matrix by the specified amount about the specified point.
public:
void ScaleAt(double scaleX, double scaleY, double centerX, double centerY);
public void ScaleAt (double scaleX, double scaleY, double centerX, double centerY);
member this.ScaleAt : double * double * double * double -> unit
Public Sub ScaleAt (scaleX As Double, scaleY As Double, centerX As Double, centerY As Double)
Parameters
- centerX
- Double
The x-coordinate of the scale operation's center point.
- centerY
- Double
The y-coordinate of the scale operation's center point.
Examples
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;
}
Applies to
GitHub에서 Microsoft와 공동 작업
이 콘텐츠의 원본은 GitHub에서 찾을 수 있으며, 여기서 문제와 끌어오기 요청을 만들고 검토할 수도 있습니다. 자세한 내용은 참여자 가이드를 참조하세요.
.NET