Blend 构造函数

定义

命名空间:

System.Drawing.Drawing2D

程序集:

System.Drawing.Common.dll

包:

System.Drawing.Common v8.0.0

初始化 Blend 类的新实例。

重载

Blend()	初始化 Blend 类的新实例。
Blend(Int32)	用指定的因子和位置的数目初始化 Blend 类的新实例。

Blend()

Source:

Blend.cs

初始化 Blend 类的新实例。

public:
 Blend();

public Blend ();

Public Sub New ()

示例

以下示例旨在用于Windows 窗体环境。 它演示了 Blend 如何将 类与 LinearGradientBrush 类结合使用，将椭圆绘制到混合了颜色的屏幕上。 椭圆在左侧为蓝色，在中心混合为红色，在右侧混合回蓝色。 这可以通过 和 属性中使用的 和 myPositions 数组中的PositionsFactors设置myFactors来实现。 请注意，Blend名为 lgBrush2 的 LinearGradientBrush 对象的 属性必须与 对象 myBlend相等Blend。

public:
   void BlendConstExample( PaintEventArgs^ e )
   {
      //Draw ellipse using Blend.
      Point startPoint2 = Point(20,110);
      Point endPoint2 = Point(140,110);
      array<Single>^myFactors = {.2f,.4f,.8f,.8f,.4f,.2f};
      array<Single>^myPositions = {0.0f,.2f,.4f,.6f,.8f,1.0f};
      Blend^ myBlend = gcnew Blend;
      myBlend->Factors = myFactors;
      myBlend->Positions = myPositions;
      LinearGradientBrush^ lgBrush2 =
            gcnew LinearGradientBrush( startPoint2,endPoint2,Color::Blue,Color::Red );
      lgBrush2->Blend = myBlend;
      Rectangle ellipseRect2 = Rectangle(20,110,120,80);
      e->Graphics->FillEllipse( lgBrush2, ellipseRect2 );

      // End example.
   }

public void BlendConstExample(PaintEventArgs e)
{
             
    //Draw ellipse using Blend.
    Point startPoint2 = new Point(20, 110);
    Point endPoint2 = new Point(140, 110);
    float[] myFactors = {.2f,.4f,.8f,.8f,.4f,.2f};
    float[] myPositions = {0.0f,.2f,.4f,.6f,.8f,1.0f};
    Blend myBlend = new Blend();
    myBlend.Factors = myFactors;
    myBlend.Positions = myPositions;
    LinearGradientBrush lgBrush2 = new LinearGradientBrush(
        startPoint2,
        endPoint2,
        Color.Blue,
        Color.Red);
    lgBrush2.Blend = myBlend;
    Rectangle ellipseRect2 = new Rectangle(20, 110, 120, 80);
    e.Graphics.FillEllipse(lgBrush2, ellipseRect2);
             
    // End example.
}

Public Sub BlendConstExample(ByVal e As PaintEventArgs)

    ' Draw ellipse using Blend.
    Dim startPoint2 As New Point(20, 110)
    Dim endPoint2 As New Point(140, 110)
    Dim myFactors As Single() = {0.2F, 0.4F, 0.8F, 0.8F, 0.4F, 0.2F}
    Dim myPositions As Single() = {0.0F, 0.2F, 0.4F, 0.6F, 0.8F, 1.0F}
    Dim myBlend As New Blend
    myBlend.Factors = myFactors
    myBlend.Positions = myPositions
    Dim lgBrush2 As New LinearGradientBrush(startPoint2, endPoint2, _
    Color.Blue, Color.Red)
    lgBrush2.Blend = myBlend
    Dim ellipseRect2 As New Rectangle(20, 110, 120, 80)
    e.Graphics.FillEllipse(lgBrush2, ellipseRect2)
End Sub

Blend(Int32)

Source:

Blend.cs

用指定的因子和位置的数目初始化 Blend 类的新实例。

public:
 Blend(int count);

public Blend (int count);

new System.Drawing.Drawing2D.Blend : int -> System.Drawing.Drawing2D.Blend

Public Sub New (count As Integer)

参数

count

Int32

Factors 数组和 Positions 数组中的元素数。

示例

有关示例，请参见 Blend。