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Polyspiral: Difference between revisions
→{{header|C#}}: added C#
m (→{{header|SPL}}) |
(→{{header|C#}}: added C#) |
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}
</lang>
=={{header|C#}}==
{{trans|Java}}
<lang csharp>using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
using System.Windows.Threading;
namespace Polyspiral
{
public partial class Form1 : Form
{
private double inc;
public Form1()
{
Width = Height = 640;
StartPosition = FormStartPosition.CenterScreen;
SetStyle(
ControlStyles.AllPaintingInWmPaint |
ControlStyles.UserPaint |
ControlStyles.DoubleBuffer,
true);
var timer = new DispatcherTimer();
timer.Tick += (s, e) => { inc = (inc + 0.05) % 360; Refresh(); };
timer.Interval = new TimeSpan(0, 0, 0, 0, 40);
timer.Start();
}
private void DrawSpiral(Graphics g, int len, double angleIncrement)
{
double x1 = Width / 2;
double y1 = Height / 2;
double angle = angleIncrement;
for (int i = 0; i < 150; i++)
{
double x2 = x1 + Math.Cos(angle) * len;
double y2 = y1 - Math.Sin(angle) * len;
g.DrawLine(Pens.Blue, (int)x1, (int)y1, (int)x2, (int)y2);
x1 = x2;
y1 = y2;
len += 3;
angle = (angle + angleIncrement) % (Math.PI * 2);
}
}
protected override void OnPaint(PaintEventArgs args)
{
var g = args.Graphics;
g.SmoothingMode = SmoothingMode.AntiAlias;
g.Clear(Color.White);
DrawSpiral(g, 5, ToRadians(inc));
}
private double ToRadians(double angle)
{
return Math.PI * angle / 180.0;
}
}
}</lang>
=={{header|Gnuplot}}==
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