3 // Creates image for Hering illusion.
4 // Converted to C# from Xr demo application.
7 // Alexandre Pigolkine(pigolkine@gmx.de)
10 // Copyright (C) Ximian, Inc. http://www.ximian.com
12 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
14 // Permission is hereby granted, free of charge, to any person obtaining
15 // a copy of this software and associated documentation files (the
16 // "Software"), to deal in the Software without restriction, including
17 // without limitation the rights to use, copy, modify, merge, publish,
18 // distribute, sublicense, and/or sell copies of the Software, and to
19 // permit persons to whom the Software is furnished to do so, subject to
20 // the following conditions:
22 // The above copyright notice and this permission notice shall be
23 // included in all copies or substantial portions of the Software.
25 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
29 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
30 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
31 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
36 using System.Drawing.Imaging;
37 using System.Drawing.Drawing2D;
39 namespace MonoSamples.System.Drawing
43 public static void Main (String[] args) {
46 float height = 800.0F;
47 Bitmap bmp = new Bitmap ((int) width, (int) height);
48 Graphics gr = Graphics.FromImage (bmp);
49 gr.Clear (Color.White);
52 float MAX_THETA = (.80F * 90.0F);
53 float THETA = (2 * MAX_THETA / (LINES-1));
55 GraphicsState oldState = gr.Save ();
57 Pen blackPen = new Pen (Color.Black, 2.0F);
58 gr.TranslateTransform (width / 2.0F, height / 2.0F);
59 gr.RotateTransform (MAX_THETA);
60 for ( int i = 0; i < LINES; i++) {
61 gr.DrawLine (blackPen, -2.0F * width, 0.0F, 2.0F * width, 0.0F);
62 gr.RotateTransform (-THETA);
65 gr.Restore (oldState);
67 Pen redPen = new Pen (Color.Red, 6F);
68 gr.DrawLine (redPen, width / 4F, 0F, width / 4F, height);
69 gr.DrawLine (redPen, 3F * width / 4F, 0F, 3F * width / 4F, height);
71 /* save image in all the formats */
72 bmp.Save ("hering.png", ImageFormat.Png);
73 Console.WriteLine ("output file hering.png");
74 bmp.Save ("hering.jpg", ImageFormat.Jpeg);
75 Console.WriteLine ("output file hering.jpg");
76 bmp.Save ("hering.bmp", ImageFormat.Bmp);
77 Console.WriteLine ("output file hering.bmp");