Mega Code Archive
Rectangle Union and Intersect
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class RectangleUnionIntersect
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
public class Form1
Inherits System.Windows.Forms.Form
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
Dim g As Graphics = Me.CreateGraphics()
Dim pt As New PointF(30.8F, 20.7F)
Dim sz As New SizeF(60.0F, 40.0F)
Dim rect1 As New RectangleF(pt, sz)
Dim rect2 As New RectangleF(40.2F, 40.6F, 100.5F, 100.0F)
Dim rect3 As Rectangle = Rectangle.Ceiling(rect1)
Dim rect4 As Rectangle = Rectangle.Truncate(rect1)
Dim rect5 As Rectangle = Rectangle.Round(rect2)
g.DrawRectangle(Pens.Black, rect3)
g.DrawRectangle(Pens.Red, rect5)
Dim isectRect As Rectangle = Rectangle.Intersect(rect3, rect5)
g.FillRectangle(New SolidBrush(Color.Blue), isectRect)
Dim inflateSize As New Size(0, 40)
isectRect.Inflate(inflateSize)
g.DrawRectangle(Pens.Blue, isectRect)
rect4 = Rectangle.Empty
rect4.Location = New Point(50, 50)
rect4.X = 30
rect4.Y = 40
Dim unionRect As Rectangle = Rectangle.Union(rect4, rect5)
g.DrawRectangle(Pens.Green, unionRect)
g.Dispose()
End Sub
Public Sub New()
MyBase.New()
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
End Sub
End Class