public partial class Form2 : Form
{
public Form2()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
Task.Factory.StartNew(() => {
Form form = new Form();
form.StartPosition = FormStartPosition.CenterScreen;
form.Width = 500;
form.Height = 500;
Button button = new Button();
form.Controls.Add(button);
button.Location = new Point(0, 0);
button.Width = 50;
button.Height = 20;
button.Click += new EventHandler(button_Test_Click);
form.ShowDialog();
//或
//Application.Run(form)
// Application.DoEvents();喚醒窗體
//form.Show();
});
}
private void button_Test_Click(object sender, EventArgs e)
{
Thread.Sleep(10000);
}
Bitmap bit=new Bitmap(800,500);
private void button2_Click(object sender, EventArgs e)
{
SetParameter(this.pictureBox1, bit, 20, 400, 250);
DrawPosition(-1, -1);
}
public void DrawPosition(int x,int y)
{
BufferedGraphicsContext current=BufferedGraphicsManager.Current;
BufferedGraphics bg;
bg=current.Allocate(_PictureBOx.CreateGraphics(),_PictureBOx.DisplayRectangle);
Graphics g=bg.Graphics;
g.FillRectangle(Brushes.Black, new Rectangle(0, 0, _PictureBOx.Width, _PictureBOx.Height));
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
//標準座標圖
Pen pen=new Pen(Color.OrangeRed,1);
g.DrawLine(pen, new Point(GetX(0), GetY(_CenterY)), new Point(GetX(_bitMap.Width), GetY(_CenterY)));
int countHorizon = 10;
for (int i = 0; i < countHorizon; i++)//橫線
{
g.DrawLine(pen, new Point(GetX(i * _CenterX / countHorizon + _CenterX), GetY(_CenterY)), new Point(GetX(i * _CenterX / countHorizon + _CenterX), GetY(_CenterY) - 5));
g.DrawLine(pen, new Point(GetX(_CenterX - i * _CenterX / countHorizon), GetY(_CenterY)), new Point(GetX(_CenterX - i * _CenterX / countHorizon), GetY(_CenterY) - 5));
}
g.DrawLine(pen, new Point(GetX(_CenterX), GetY(0)), new Point(GetX(_CenterX), GetY(_bitMap.Height)));
int countVertical = 6;
for (int i = 0; i < countVertical; i++)//縱線
{
g.DrawLine(pen, new Point(GetX(_CenterX), GetY(_CenterY + i * _CenterY / countVertical)), new Point(GetX(_CenterX) + 5, GetY(_CenterY + i * _CenterY / countVertical)));
g.DrawLine(pen, new Point(GetX(_CenterX), GetY(_CenterY - i * _CenterY / countVertical)), new Point(GetX(_CenterX) + 5, GetY(_CenterY - i * _CenterY / countVertical)));
}
Pen pen3 = new Pen(Color.Yellow, 1);
pen3.DashStyle = System.Drawing.Drawing2D.DashStyle.Dash; //虛線
pen3.DashPattern = new float[] {5, 10 };
//斜線
g.DrawLine(pen3, new Point(GetX(_CenterX), GetY(_CenterY)), new Point(GetX(_CenterX) - GetY(_CenterY), GetY(0)));
g.DrawLine(pen3, new Point(GetX(_CenterX), GetY(_CenterY)), new Point(GetX(_CenterX) - GetY(_CenterY), GetY(_CenterY * 2)));
g.DrawLine(pen3, new Point(GetX(_CenterX), GetY(_CenterY)), new Point(GetX(_CenterX) + GetY(_CenterY), GetY(0)));
g.DrawLine(pen3, new Point(GetX(_CenterX), GetY(_CenterY)), new Point(GetX(_CenterX) + GetY(_CenterY), GetY(_CenterY * 2)));
int elliValue = _CenterX / 4;
int pad = 60;
int coefficient = 0;
for(int i=0;i<3;i++)//圓
{
if (i == 0) continue;
coefficient = -20;//Convert.ToInt32(pad*i);
g.DrawEllipse(pen, new Rectangle(GetX(_CenterX - elliValue * i) + coefficient, GetY(_CenterY - elliValue * i) + coefficient,GetX( elliValue * i*2) - coefficient, GetY(elliValue * i*2) - coefficient));
}
int tempWidth = 3;
int tempOffset = 25;
Pen pen4= new Pen(Color.Red, 1);
g.DrawLine(pen4, new Point(GetX(_CenterX) - tempWidth, GetY(_CenterY) - tempWidth), new Point(GetX(_CenterX) - tempWidth, GetY(_CenterY) - tempOffset));//縱上左
g.DrawLine(pen4, new Point(GetX(_CenterX) - tempWidth, GetY(_CenterY) + tempWidth), new Point(GetX(_CenterX) - tempWidth, GetY(_CenterY) + tempOffset));//縱下左
g.DrawLine(pen4, new Point(GetX(_CenterX) + tempWidth, GetY(_CenterY) - tempWidth), new Point(GetX(_CenterX) + tempWidth, GetY(_CenterY) - tempOffset));//縱上右
g.DrawLine(pen4, new Point(GetX(_CenterX) + tempWidth, GetY(_CenterY) + tempWidth), new Point(GetX(_CenterX) + tempWidth, GetY(_CenterY) + tempOffset));//縱下右
g.DrawLine(pen4, new Point(GetX(_CenterX) - tempWidth, GetY(_CenterY) - tempWidth), new Point(GetX(_CenterX) - tempOffset, GetY(_CenterY) - tempWidth));//橫上左
g.DrawLine(pen4, new Point(GetX(_CenterX) - tempWidth, GetY(_CenterY) + tempWidth), new Point(GetX(_CenterX) - tempOffset, GetY(_CenterY) + tempWidth));//橫下左
g.DrawLine(pen4, new Point(GetX(_CenterX) + tempWidth, GetY(_CenterY) - tempWidth), new Point(GetX(_CenterX) + tempOffset, GetY(_CenterY) - tempWidth));//橫上右
g.DrawLine(pen4, new Point(GetX(_CenterX) + tempWidth, GetY(_CenterY) + tempWidth), new Point(GetX(_CenterX) + tempOffset, GetY(_CenterY) + tempWidth));//橫下右
//實時中心
if (x >= 0&&y>=0)
{
Pen pen2 = new Pen(Color.Green, 1);
g.DrawEllipse(pen2, new Rectangle(GetX(x) - 5, GetY(y) - 5, 10, 10));//畫中心點
g.FillEllipse(Brushes.Green, new Rectangle(GetX(x) - 5, GetY(y) - 5, 10, 10));
g.DrawLine(pen2, new Point(GetX(x), GetY(y) - 20), new Point(GetX(x), GetY(y) + 20));
g.DrawLine(pen2, new Point(GetX(x) - 20, GetY(y)), new Point(GetX(x) + 20, GetY(y)));
}
bg.Render();
bg.Dispose();
}
int _Margin=20;
int _CenterX=400;
int _CenterY=250;
PictureBox _PictureBOx;
Bitmap _bitMap;
public void SetParameter(PictureBox pictureBOx,Bitmap bitmap,int margin, int centerX, int centerY)
{
_Margin = margin;
_CenterX = centerX;
_CenterY = centerY;
_PictureBOx = pictureBOx;
_bitMap = bitmap;
}
public int GetX(double x)
{
x = (x / _bitMap.Width) * (_PictureBOx.Width - 2 * _Margin) + _Margin;
return Convert.ToInt32(x);
}
public int GetY(double y)
{
y = (y / _bitMap.Height) * (_PictureBOx.Height - 2 * _Margin) + _Margin;
return Convert.ToInt32(y);
}
private void button3_Click(object sender, EventArgs e)
{
// DrawPosition(Convert.ToInt32(textBox1.Text), Convert.ToInt32(textBox2.Text));
Random ran = new Random();
for(int i=0;i<1000;i++)
{
Thread.Sleep(100);
DrawPosition(ran.Next(0, 800),ran.Next(0,500));
}
}
}
