Renderer.InkSpaceToPixel 方法 (Graphics, array<Point[]%)

项目
11/04/2008

通过使用用于转换的 Graphics 对象，将墨迹空间 坐标中的位置数组转换到像素空间中。

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

语法

声明
Public Sub InkSpaceToPixel ( _
    g As Graphics, _
    ByRef pts As Point() _
)
用法
Dim instance As Renderer
Dim g As Graphics
Dim pts As Point()

instance.InkSpaceToPixel(g, pts)

public void InkSpaceToPixel(
    Graphics g,
    ref Point[] pts
)

public:
void InkSpaceToPixel(
    Graphics^ g, 
    array<Point>^% pts
)

public void InkSpaceToPixel(
    Graphics g,
    /** @ref */Point[] pts
)

public function InkSpaceToPixel(
    g : Graphics, 
    pts : Point[]
)

参数

g
类型：System.Drawing.Graphics
要用于转换的 Graphics 对象。该对象通常来自于事件参数或 System.Windows.Forms.Control.CreateGraphics 方法。

pts
类型：array<System.Drawing.Point[]%
要转换为像素位置的点的数组。

备注

InkSpaceToPixel 方法应用 Renderer 对象的对象变换，再应用视图变换，然后从 HIMETRIC 转换到像素单位。

示例

此示例将 InkOverlay 对象传递给一个方法。该方法返回像素空间中关联的 Ink 对象的边界框。

Public Function GetInkBoundsInPixels(ByVal theInkOverlay As InkOverlay) As Rectangle
    ' Copy the bounding rectangle in ink space dimensions
    Dim theBoundingRectangle As Rectangle = theInkOverlay.Ink.GetBoundingBox()
    ' Get the top left and bottom right points
    Dim corners() As Point = _
            { _
              theBoundingRectangle.Location, _
              theBoundingRectangle.Location + theBoundingRectangle.Size _
            }
    Using g As Graphics = mInkOverlay.AttachedControl.CreateGraphics()
        ' Convert from ink space to pixel space
        theInkOverlay.Renderer.InkSpaceToPixel(g, corners)
    End Using
    Return New Rectangle(corners(0), _
        New Size(corners(1).X - corners(0).X, corners(1).Y - corners(0).Y))
End Function

public Rectangle GetInkBoundsInPixels(InkOverlay theInkOverlay)
{
    // Copy the bounding rectangle in ink space dimensions
    Rectangle theBoundingRectangle = theInkOverlay.Ink.GetBoundingBox();
    // Get the top left and bottom right points
    Point[] corners = new Point[2] 
        {
            theBoundingRectangle.Location,
            theBoundingRectangle.Location + theBoundingRectangle.Size
        };
    using (Graphics g = mInkOverlay.AttachedControl.CreateGraphics())
    {
        // Convert from ink space to pixel space
        theInkOverlay.Renderer.InkSpaceToPixel(g, ref corners);
    }
    return new Rectangle(corners[0],
        new Size(corners[1].X - corners[0].X, corners[1].Y - corners[0].Y));
}