本文整理匯總了C#中System.Drawing.Region.Union方法的典型用法代碼示例。如果您正苦於以下問題：C# Region.Union方法的具體用法？C# Region.Union怎麽用？C# Region.Union使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.Drawing.Region的用法示例。
在下文中一共展示了Region.Union方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C#代碼示例。
示例1: Union_RectF_Example
public void Union_RectF_Example(PaintEventArgs e)
{
// Create the first rectangle and draw it to the screen in black.
Rectangle regionRect = new Rectangle(20, 20, 100, 100);
e.Graphics.DrawRectangle(Pens.Black, regionRect);
// create the second rectangle and draw it to the screen in red.
RectangleF unionRect = new RectangleF(90, 30, 100, 100);
e.Graphics.DrawRectangle(Pens.Red,
Rectangle.Round(unionRect));
// Create a region using the first rectangle.
Region myRegion = new Region(regionRect);
// Get the area of union for myRegion when combined with
// complementRect.
myRegion.Union(unionRect);
// Fill the union area of myRegion with blue.
SolidBrush myBrush = new SolidBrush(Color.Blue);
e.Graphics.FillRegion(myBrush, myRegion);
}示例2: Form1
//引入命名空間
using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Drawing.Imaging;
public class Form1 : System.Windows.Forms.Form
{
public Form1()
{
InitializeComponent();
}
private void InitializeComponent()
{
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(292, 273);
this.Text = "";
this.Resize += new System.EventHandler(this.Form1_Resize);
this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);
}
static void Main()
{
Application.Run(new Form1());
}
private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
Graphics g = e.Graphics;
g.FillRectangle(Brushes.White, this.ClientRectangle);
Region reg = new Region();
reg.MakeEmpty();
GraphicsPath gp = new GraphicsPath();
gp.AddEllipse(10, 10, 50, 50);
reg.Union(gp);
gp.Reset();
gp.AddLine(40, 40, 70, 10);
gp.AddLine(70, 10, 140, 140);
gp.CloseFigure();
reg.Union(gp);
reg.Union(new Rectangle(40, 50, 60, 60));
// Set the clipping region
g.SetClip(reg, CombineMode.Replace);
g.FillRectangle(Brushes.Green, this.ClientRectangle);
gp.Dispose();
reg.Dispose();
}
private void Form1_Resize(object sender, System.EventArgs e)
{
Invalidate();
}
}