Rotating the Drawing

To draw an ellipse, use the DrawEllipse method and to transform the drawing, call the TranslateTransform and RotateTransform methods:

To draw an ellipse and transform it, add the following code to the Form_Load event:

To write code in Visual Basic

Visual Basic	Copy Code
Imports C1.C1Flash Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Me.C1FlashCanvas1.Clear(Color.White) ' Resets the coordinate transform Me.C1FlashCanvas1.ResetTransform() Dim ptCenter As New Point(Me.C1FlashCanvas1.Width / 2, Me.C1FlashCanvas1.Height / 20) ' Moves the coordination origin point to the center of the canvas Me.C1FlashCanvas1.TranslateTransform(ptCenter.X, ptCenter.Y) Dim rect As New Rectangle(80, 140, 140, 180) Dim i As Integer i = 0 For i = 1 To 11 ' Draws the ellipse with the same ellipse parameter Me.C1FlashCanvas1.DrawEllipse(Pens.Red, rect) Me.C1FlashCanvas1.FillEllipse(Brushes.LightYellow, rect) ' Rotates the coordination by 15 degrees Me.C1FlashCanvas1.RotateTransform(15) Next i End Sub

To write code in C#

C#	Copy Code
using C1.C1Flash; private void Form1_Load(object sender, System.EventArgs e) { this.c1FlashCanvas1.Clear(Color.White); // Resets the coordinate transform this.c1FlashCanvas1.ResetTransform(); Point ptCenter = new Point(this.c1FlashCanvas1.Width / 2, this.c1FlashCanvas1.Height / 20); // Moves the coordination origin point to the center of the canvas this.c1FlashCanvas1.TranslateTransform(ptCenter.X, ptCenter.Y); Rectangle rect = new Rectangle(80, 140, 140, 180); for(int i = 0; i < 12; i++) { // Draws the ellipse with the same ellipse parameter this.c1FlashCanvas1.DrawEllipse(Pens.Red, rect); this.c1FlashCanvas1.FillEllipse(Brushes.LightYellow, rect); // Rotates the coordination by 15 degrees this.c1FlashCanvas1.RotateTransform(15); }

Enter the following code to the Form_Load event to save the canvas to a SWF file and launch it to FlashPlayer or Internet Explorer:

To write code in Visual Basic

Visual Basic	Copy Code
Me.C1FlashCanvas1.RenderToFile("c:\WindowsApplication1.swf") LaunchViewer("c:\WindowsApplication1.swf")

To write code in C#

C#	Copy Code
this.c1FlashCanvas1.RenderToFile(@"c:\WindowsApplication1.swf"); LaunchViewer(@"c:\WindowsApplication1.swf");

This topic illustrates the following:

Here is what your drawing will look like in Internet Explorer: