C # drawing - streamer
// -------------------------------------
// DrawStreamer.cs by Flycrane
// -------------------------------------
Using system;
Using system.drawing;
Using system.windows.forms;
Class Drawstreamer: Form
{
Public static void main ()
{
Application.run (New Drawstreamer ());
}
Public Drawstreamer ()
{
TEXT = "Rifting Pattern - Flycrane";
Backcolor = color.AliceBlue;
Forecolor = color.gold;
Resizeredraw = true;
Width = 600;
HEIGHT = 350;
}
Protected Override Void Onpaint (Painteventargs E)
{
Graphics mygraphics = E.Graphics;
Pen Mypen = New Pen (Forecolor, 2);
// center of the circle.
Float Originx = ClientSize.width / 2;
Float Originy = Clientsize.height;
Float x1, x2, y1;
// Draw Streamer, Which Comprise Series of Horizontal Line Segment;
For (Double A = 0; a <= math.pi; a = math.pi / 380)
{
X1 = (float) (280 * math.cos (1.6 * a) Originx);
Y1 = (FLOAT) (479- ((90 * math.sin (8 * a)) * Math.cos (A / 2.5) Originy);
X2 = (float) (280 * math.cos (1.8 * a) Originx);
MyGraphics.drawline (Mypen, X1, Y1, X2, Y1);
}
}
}
Rendering:
references:
CHARLES PETZOLD. Programming Microsoft Windows with c # .microsoft press. 2002.
2. Lu Runmin. C language drawing tutorial. Tsinghua University Press. April 1996 First Edition.
