Аналоговые часы

const float PI = 3.141592654F;

DateTime dateTime;

float fRadius, fCenterX, fCenterY, fCenterCircleRadius, fHourLength;
float fMinLength, fSecLength, fHourThickness, fMinThickness, fSecThickness;
bool bDraw5MinuteTicks = true;
bool bDraw1MinuteTicks = true;
float fTicksThickness = 2;

Color hrColor = Color.GreenYellow;
Color minColor = Color.Aqua;
Color secColor = Color.Gold;
Color circleColor = Color.Black;
Color ticksColor = Color.Green;

private void Form1_Load(object sender, System.EventArgs e)
{
    dateTime = DateTime.Now;
    this.Form1_Resize(sender, e);
}

private void timer2_Tick(object sender, System.EventArgs e)
{
    this.dateTime = DateTime.Now;
    this.Refresh();
}

private void DrawLine(float fThickness, float fLength, Color color, float fRadians, System.Windows.Forms.PaintEventArgs e)
{
    e.Graphics.DrawLine(new Pen(color, fThickness),
        fCenterX - (float)(fLength / 9 * System.Math.Sin(fRadians)),
        fCenterY + (float)(fLength / 9 * System.Math.Cos(fRadians)),
        fCenterX + (float)(fLength * System.Math.Sin(fRadians)),
        fCenterY - (float)(fLength * System.Math.Cos(fRadians)));

}

private void DrawPolygon(float fThickness, float fLength, Color color, float fRadians, System.Windows.Forms.PaintEventArgs e)
{

    PointF A = new PointF((float)(fCenterX + fThickness * 2 * System.Math.Sin(fRadians + PI / 2)),
        (float)(fCenterY - fThickness * 2 * System.Math.Cos(fRadians + PI / 2)));
    PointF B = new PointF((float)(fCenterX + fThickness * 2 * System.Math.Sin(fRadians - PI / 2)),
        (float)(fCenterY - fThickness * 2 * System.Math.Cos(fRadians - PI / 2)));
    PointF C = new PointF((float)(fCenterX + fLength * System.Math.Sin(fRadians)),
        (float)(fCenterY - fLength * System.Math.Cos(fRadians)));
    PointF D = new PointF((float)(fCenterX - fThickness * 4 * System.Math.Sin(fRadians)),
        (float)(fCenterY + fThickness * 4 * System.Math.Cos(fRadians)));
    PointF[] points = { A, D, B, C };
    e.Graphics.FillPolygon(new SolidBrush(color), points);
}

private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
    Image newImage = Image.FromFile(Application.StartupPath + @"\1.png");
    Point ulCorner = new Point(69, 50);
    e.Graphics.FillEllipse(Brushes.Black, 38, 26, 210, 210);
    e.Graphics.FillEllipse(Brushes.White, 44, 30, 200, 200);
    e.Graphics.DrawImageUnscaled(newImage, ulCorner);
    float fRadHr = (dateTime.Hour % 12 + dateTime.Minute / 60F) * 30 * PI / 180;
    float fRadMin = (dateTime.Minute) * 6 * PI / 180;
    float fRadSec = (dateTime.Second) * 6 * PI / 180;

    DrawPolygon(this.fHourThickness, this.fHourLength, hrColor, fRadHr, e);
    DrawPolygon(this.fMinThickness, this.fMinLength, minColor, fRadMin, e);
    DrawLine(this.fSecThickness, this.fSecLength, secColor, fRadSec, e);


    for (int i = 0; i < 60; i++)
    {
        if (this.bDraw5MinuteTicks == true && i % 5 == 0) // Draw 5 minute ticks
        {
            e.Graphics.DrawLine(new Pen(ticksColor, fTicksThickness),
                fCenterX + (float)(this.fRadius / 1.50F * System.Math.Sin(i * 6 * PI / 180)),
                fCenterY - (float)(this.fRadius / 1.50F * System.Math.Cos(i * 6 * PI / 180)),
                fCenterX + (float)(this.fRadius / 1.65F * System.Math.Sin(i * 6 * PI / 180)),
                fCenterY - (float)(this.fRadius / 1.65F * System.Math.Cos(i * 6 * PI / 180)));
        }
        else if (this.bDraw1MinuteTicks == true) // draw 1 minute ticks
        {

            e.Graphics.DrawLine(new Pen(ticksColor, fTicksThickness),
                fCenterX + (float)(this.fRadius / 1.50F * System.Math.Sin(i * 6 * PI / 180)),
                fCenterY - (float)(this.fRadius / 1.50F * System.Math.Cos(i * 6 * PI / 180)),
                fCenterX + (float)(this.fRadius / 1.55F * System.Math.Sin(i * 6 * PI / 180)),
                fCenterY - (float)(this.fRadius / 1.55F * System.Math.Cos(i * 6 * PI / 180)));
        }
    }

    //draw circle at center
    e.Graphics.FillEllipse(new SolidBrush(circleColor), fCenterX - fCenterCircleRadius / 2, fCenterY - fCenterCircleRadius / 2, fCenterCircleRadius, fCenterCircleRadius);
    
}

private void Form1_Resize(object sender, System.EventArgs e)
{
    this.Width = this.Height;
    this.fRadius = this.Height / 2;
    this.fCenterX = this.ClientSize.Width / 2;
    this.fCenterY = this.ClientSize.Height / 2;
    this.fHourLength = (float)this.Height / 3 / 1.85F;
    this.fMinLength = (float)this.Height / 3 / 1.20F;
    this.fSecLength = (float)this.Height / 3 / 1.15F;
    this.fHourThickness = (float)this.Height / 100;
    this.fMinThickness = (float)this.Height / 150;
    this.fSecThickness = (float)this.Height / 200;
    this.fCenterCircleRadius = this.Height / 50;
    timer2.Start();
}
public Color HourHandColor
{
    get { return this.hrColor; }
    set { this.hrColor = value; }
}

public Color MinuteHandColor
{
    get { return this.minColor; }
    set { this.minColor = value; }
}

public Color SecondHandColor
{
    get { return this.secColor; }
    set
    {
        this.secColor = value;
        this.circleColor = value;
    }
}

public Color TicksColor
{
    get { return this.ticksColor; }
    set { this.ticksColor = value; }
}

public bool Draw1MinuteTicks
{
    get { return this.bDraw1MinuteTicks; }
    set { this.bDraw1MinuteTicks = value; }
}

public bool Draw5MinuteTicks
{

    get { return this.bDraw5MinuteTicks; }
    set { this.bDraw5MinuteTicks = value; }
}