C# 繪圖--金剛石
2024-07-21 02:19:07
供稿：網友
c# 繪圖--金剛石
楊賀宏
//-------------------------------------
// drawdiamond.cs by flycrane
//-------------------------------------
using system;
using system.drawing;
using system.windows.forms;
class drawdiamond : form
{
publicstaticvoidmain()
{
application.run( new drawdiamond() );
}
public drawdiamond()
{
text= "金剛石圖案-flycrane";
backcolor= color.black;
forecolor= color.white;
resizeredraw= true;
width= 400;
height= 400;
}
protectedoverridevoid 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<partitionnum;i++ )
{
circlex[i]= (float) ( radius*math.cos( i*angleunit ) ) + originx;
circley[i]= (float) ( radius*math.sin( 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] );
}
}
}
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