C # drawing - diamond
// -------------------------------------
// DrawDiamond.cs by Flycrane
// -------------------------------------
Using system;
Using system.drawing;
Using system.windows.forms;
Class DrawDiamond: Form
{
Public static void main ()
{
Application.run (new drawdiamond ());
}
Public drawdiamond ()
{
Text = "Diamond Pattern - Flycrane";
Backcolor = color.black;
Forecolor = color.white;
Resizeredraw = true;
Width = 400;
HEIGHT = 400;
}
Protected Override Void Onpaint (Painteventargs E)
{
Graphics mygraphics = E.Graphics;
Pen Mypen = New Pen (Forecolor, 2);
Float radius = (float) (Width / 2.2);
Constint Partitionnum = 25;
Float angleunit = (float) (2 * math.pi / partitionnum);
Float [] circlex = newfloat [partitionnum];
Float [] Circley = newfloat [partitionnum];
// center of the circle.
Float Originx = ClientSize.width / 2;
Float Originy = ClientSize.height / 2;
// Store Coordinates of the Nodes on The Circle Verge.
For (int i = 0; i { Circlex [i] = (float) (Radius * Math.cos (i * angleunit)) Originx; Circley [i] = (float) (i * angleunit) Originy; } // link nodes on the circle verge. For (INT i = 0; i <= partitionnum-2; i ) { For (int J = i 1; j <= partitionnum-1; j ) MyGraphics.drawline (Mypen, Circlex [I], Circley [i], Circlex [J], Circley [J]); } } } 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.
