Stroke.Rotate 方法

项目
11/04/2008

使 Stroke 对象围绕中心点旋转。

命名空间： Microsoft.Ink
程序集： Microsoft.Ink（在 Microsoft.Ink.dll 中）

语法

声明
Public Sub Rotate ( _
    degrees As Single, _
    point As Point _
)
用法
Dim instance As Stroke
Dim degrees As Single
Dim point As Point

instance.Rotate(degrees, point)

public void Rotate(
    float degrees,
    Point point
)

public:
void Rotate(
    float degrees, 
    Point point
)

public void Rotate(
    float degrees,
    Point point
)

public function Rotate(
    degrees : float, 
    point : Point
)

参数

degrees
类型：System.Single
顺时针旋转的度数。

point
类型：System.Drawing.Point
围绕其旋转的点，采用墨迹空间 坐标。

示例

在此示例中，使 InkOverlay 对象的所有选定 Stroke 顺时针旋转 60 度。旋转是围绕墨迹控件的中心进行的。

Dim inkControl As Control = mInkOverlay.AttachedControl
' get the center of the ink control
Dim centerPt As Point = New Point(inkControl.Width / 2, inkControl.Height / 2)
Using g As Graphics = inkControl.CreateGraphics()
    ' convert center point to ink space coordinates
    mInkOverlay.Renderer.PixelToInkSpace(g, centerPt)
End Using
For Each S As Stroke In mInkOverlay.Selection
    S.Rotate(60.0F, centerPt)
Next

Control inkControl = mInkOverlay.AttachedControl;
// get the center of the ink control
Point centerPt = new Point(inkControl.Width / 2, inkControl.Height / 2);
using (Graphics g = inkControl.CreateGraphics())
{
    // convert center point to ink space coordinates
    mInkOverlay.Renderer.PixelToInkSpace(g, ref centerPt);
}
foreach (Stroke S in mInkOverlay.Selection)
{
    S.Rotate(60.0f, centerPt);
}