using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace pieDemp
{
public partial class Form1 : Form
{
private int count = 0;
// Brushes used to fill pie slices.
private Brush[] SliceBrushes =
{
Brushes.Red,
Brushes.LightGreen,
Brushes.Blue,
Brushes.LightBlue,
Brushes.Green,
Brushes.Lime,
Brushes.Orange,
Brushes.Fuchsia,
Brushes.Yellow,
Brushes.Cyan,
};
// Pens used to outline pie slices.
private Pen[] SlicePens = { Pens.Black };
// The data values to chart.
private float[] Values = new float[10];
// Make some random data.
private void Form1_Load(object sender, EventArgs e)
{
Random rand = new Random();
for (int i = 0; i < Values.Length; i++)
{
Values[i] = rand.Next(10, 40);
}
}
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
Console.WriteLine(e.Location.X.ToString() + "," + e.Location.Y.ToString());
}
public Form1()
{
InitializeComponent();
timer1.Start();
}
// Draw the pie chart.
private void Form1_Paint(object sender, PaintEventArgs e)
{
e.Graphics.Clear(BackColor);
if ((ClientSize.Width < 20) || (ClientSize.Height < 20)) return;
e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
//Rectangle rect = new Rectangle(
//10, 10, ClientSize.Width - 20, ClientSize.Height - 20);
//DrawPieChart(e.Graphics, rect, SliceBrushes, SlicePens, Values);
//以下绘图操作
e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
const int margin = 10;
const int width = 100;
Graphics gr = e.Graphics;
Pen outline_pen = Pens.Red;
Brush fill_brush = Brushes.LightGreen;
Brush fill_brush1 = Brushes.Red;
using (Pen ellipse_pen = new Pen(Color.Blue))
{
//圆形外虚线的长度，以及间隔
ellipse_pen.DashPattern = new float[] { 2, 2 };
////以矩形左上角为参考点，绘制内切圆
Rectangle rect1 = new Rectangle(margin + 130, 100, width + 100, width + 100);
gr.DrawRectangle(ellipse_pen, rect1);
gr.DrawEllipse(ellipse_pen, rect1);
//gr.FillEllipse(fill_brush,rect1);
gr.FillPie(fill_brush, rect1, -90, 50);
gr.DrawPie(outline_pen, rect1, -90, 50);
//Rectangle rect2 = new Rectangle(230, 190, 20, 20);
int left = 230, top = 190, w = 20;
left = left - count*10;
top = top - count * 10;
w = w + count * 20;
Rectangle rect = new Rectangle(left, top, w, w);
gr.DrawEllipse(ellipse_pen, rect);
gr.FillPie(fill_brush1, rect, -90, 50);
gr.DrawPie(outline_pen, rect, -90, 50);
count++;
if (count == 10)
count = 0;
//Console.WriteLine("hello world");
//Rectangle rect2 = new Rectangle(230, 190, 20, 20);
//Rectangle rect3 = new Rectangle(220, 180, 40, 40);
//Rectangle rect4 = new Rectangle(210, 170, 60, 60);
//Rectangle rect5 = new Rectangle(200, 160, 80, 80);
//Rectangle rect6 = new Rectangle(190, 150, 100, 100);
//Rectangle rect7 = new Rectangle(180, 140, 120, 120);
//Rectangle rect8 = new Rectangle(170, 130, 140, 140);
//Rectangle rect9 = new Rectangle(160, 120, 160, 160);
//Rectangle rect10 = new Rectangle(150, 110, 180, 180);
//Rectangle rect11 = new Rectangle(140, 100, 200, 200);
// Everything else.6
//140,100
//gr.FillPie(fill_brush, rect1, -30, 60);
//gr.DrawPie(outline_pen, rect1, -30, 60);
//gr.FillPie(fill_brush, rect1, -10, 10);
//gr.DrawPie(outline_pen, rect1, -10, 10);
// Northeast wedge.
//Rectangle rect0 = new Rectangle(180, 140, 120, 120);
//gr.DrawEllipse(ellipse_pen, rect0);
//gr.FillPie(fill_brush1, rect0, -90, 50);
//gr.DrawPie(outline_pen, rect0, -90, 50);
//开始
//Rectangle rect2 = new Rectangle(230, 190, 20, 20);
//gr.DrawEllipse(ellipse_pen, rect2);
//gr.FillPie(fill_brush1, rect2, -90, 50);
//gr.DrawPie(outline_pen, rect2, -90, 50);
//Rectangle rect3 = new Rectangle(220, 180, 40, 40);
//gr.DrawEllipse(ellipse_pen, rect3);
//gr.FillPie(fill_brush1, rect3, -90, 50);
//gr.DrawPie(outline_pen, rect3, -90, 50);
//Rectangle rect4 = new Rectangle(210, 170, 60, 60);
//gr.DrawEllipse(ellipse_pen, rect4);
//gr.FillPie(fill_brush1, rect4, -90, 50);
//gr.DrawPie(outline_pen, rect4, -90, 50);
//Rectangle rect5 = new Rectangle(200, 160, 80, 80);
//gr.DrawEllipse(ellipse_pen, rect5);
//gr.FillPie(fill_brush1, rect5, -90, 50);
//gr.DrawPie(outline_pen, rect5, -90, 50);
//Rectangle rect6 = new Rectangle(190, 150, 100, 100);
//gr.DrawEllipse(ellipse_pen, rect6);
//gr.FillPie(fill_brush1, rect6, -90, 50);
//gr.DrawPie(outline_pen, rect6, -90, 50);
//Rectangle rect7 = new Rectangle(180, 140, 120, 120);
//gr.DrawEllipse(ellipse_pen, rect7);
//gr.FillPie(fill_brush1, rect7, -90, 50);
//gr.DrawPie(outline_pen, rect7, -90, 50);
//Rectangle rect8 = new Rectangle(170, 130, 140, 140);
//gr.DrawEllipse(ellipse_pen, rect8);
//gr.FillPie(fill_brush1, rect8, -90, 50);
//gr.DrawPie(outline_pen, rect8, -90, 50);
//Rectangle rect9 = new Rectangle(160, 120, 160, 160);
//gr.DrawEllipse(ellipse_pen, rect9);
//gr.FillPie(fill_brush1, rect9, -90, 50);
//gr.DrawPie(outline_pen, rect9, -90, 50);
//Rectangle rect10 = new Rectangle(150, 110, 180, 180);
//gr.DrawEllipse(ellipse_pen, rect10);
//gr.FillPie(fill_brush1, rect10, -90, 50);
//gr.DrawPie(outline_pen, rect10, -90, 50);
////以矩形左上角为参考点，绘制内切圆
//Rectangle rect1 = new Rectangle(margin + 130, 100, width + 100, width + 100);
//gr.DrawRectangle(ellipse_pen, rect1);
//gr.DrawEllipse(ellipse_pen, rect1);
////gr.FillEllipse(fill_brush,rect1);
//gr.FillPie(fill_brush1, rect1, -90, 50);
//gr.DrawPie(outline_pen, rect1, -90, 50);
//以上
//gr.FillPie(fill_brush, rect, 30, 60);
//gr.DrawPie(outline_pen, rect, 30, 60);
//gr.FillPie(fill_brush, rect, 0, 10);
//gr.DrawPie(outline_pen, rect, 0, 10);
//// East wedge.
//rect.Y += width + margin;
//rect.X = margin + 30;
//gr.DrawEllipse(ellipse_pen, rect);
//gr.FillPie(fill_brush, rect, 315, 90);
//gr.DrawPie(outline_pen, rect, 315, 90);
//// Everything else.
//rect.X += width + margin;
//gr.DrawEllipse(ellipse_pen, rect);
//gr.FillPie(fill_brush, rect, 315, -270);
//gr.DrawPie(outline_pen, rect, 315, -270);
//// Northwest quadrant.
//rect.Y += width + margin;
//rect.X = margin + 30;
//gr.DrawEllipse(ellipse_pen, rect);
//gr.FillPie(fill_brush, rect, 180, 90);
//gr.DrawPie(outline_pen, rect, 180, 90);
//// Everything else.
//rect.X += width + margin;
//gr.DrawEllipse(ellipse_pen, rect);
//gr.FillPie(fill_brush, rect, 180, -270);
//gr.DrawPie(outline_pen, rect, 180, -270);
}
}
// Draw a pie chart.
private static void DrawPieChart(Graphics gr,
Rectangle rect, Brush[] brushes, Pen[] pens,
float[] values)
{
// Get the total of all angles.
float total = values.Sum();
// Draw the slices.
float start_angle = 0;
for (int i = 0; i < values.Length; i++)
{
float sweep_angle = values[i] * 360f / total;
gr.FillPie(brushes[i % brushes.Length],
rect, start_angle, sweep_angle);
gr.DrawPie(pens[i % pens.Length],
rect, start_angle, sweep_angle);
start_angle += sweep_angle;
}
}
private void Timer1_Tick(object sender, EventArgs e)
{
Refresh();
}
}
}
