private void AlignedCenterManager_BT1Click(object sender, EventArgs e)
{
if (posFlag == 2)//两点计算圆心
{
float arc = arc2 - arc1;
PointF p = RotateMath.RotateCenterPoint(p1, p2, arc);
posFlag = 0;
Common.ReportCmdKeyProgress(CmdKey.P0304);
repairSucessful = true;
}
else if (posFlag == 3)//三点计算圆心
{
float r = 0;
centerPos = RotateMath.RotateCenterPoint(p1, p2, p3, out r);
posFlag = 0;
repairSucessful = true;
Common.ReportCmdKeyProgress(CmdKey.P0309);
}
else
{
Common.ReportCmdKeyProgress(CmdKey.P0307);
}
cPosX.Value = centerPos.X;
cPosY.Value = centerPos.Y;
}
private void button2_Click(object sender, EventArgs e)
{
Random a = new Random();
for (int i = 0; i < 3; i++)
{
p[i].X = a.Next(pictureBox1.Width);
p[i].Y = a.Next(pictureBox1.Height);
}
double angle = a.Next(360);
angle = 180 - angle;
using (Graphics g = Graphics.FromImage(bmp))
{
g.Clear(pictureBox1.BackColor);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
drawPen.Color = Color.Blue;
drawPen.DashStyle = DashStyle.Dash;
drawPen1.DashStyle = DashStyle.Dash;
float r = 0;
g.DrawPolygon(drawPen, p);
drawPen.Color = Color.Green;
g.DrawLine(drawPen, new Point(0, (int)p[0].Y), new Point(pictureBox1.Width, (int)p[0].Y));
g.DrawLine(drawPen, new Point((int)p[0].X, 0), new Point((int)p[0].X, pictureBox1.Height));
drawPen.Color = Color.DarkViolet;
PointF center = RotateMath.RotateCenterPoint(p[0], p[1], p[2], out r);
g.DrawPie(drawPen, new RectangleF((float)(center.X - r), (float)(center.Y - r), (float)(2 * r), (float)(2 * r)), 0, 360);
g.DrawString("A", this.Font, drawBrush, p[0]);
g.DrawString("B", this.Font, drawBrush, p[1]);
g.DrawString("C", this.Font, drawBrush, p[2]);
g.DrawString("O", this.Font, drawBrush, center);
}
pictureBox1.Image = bmp;
}