在.NET环境下绘制模糊数学中隶属函数分布图2012-01-02 常青藤 在.NET环境下绘制模糊数学中隶属函数分布图的整个源代码如下:其中:unit代表图形放大倍数,数值越大图形放大倍数越大。interval代表步进刻度,值越小越精确(必须大小0),但速度也越慢。
using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Collections;using System.Windows.Forms;using System.Drawing.Imaging;using System.Drawing.Drawing2D;namespace ImageFuzzy...{public partial class Form1 : Form...{private int type1;private int type2;private string item1;private string item2;private float a;private float b;private float c;private float d1;private float k;private float l;private float tempx;private float tempy;public void InitArray()...{type1 = 0;type2 = 0;k = 2;item1 = this.comboBox1.Text.ToString();item2 = this.comboBox2.Text.ToString();this.groupBox1.Text = item1 + item2 + "图形";a = float.Parse(this.tbA.Text.Trim().ToString());b = float.Parse(this.tbB.Text.Trim().ToString());c = float.Parse(this.tbC.Text.Trim().ToString());d1 = float.Parse(this.tbD.Text.Trim().ToString());k = float.Parse(this.tbK.Text.Trim().ToString());l = float.Parse(this.tbL.Text.Trim().ToString());type1 = this.comboBox1.SelectedIndex+1;type2 = this.comboBox2.SelectedIndex+1;}private void delete()...{a = 0;b = 0;c = 0;d1 = 0;k = 0;l = 0;}private void set1()...{this.tbA.Text = "1";this.tbB.Text = "2";this.tbC.Text = "3";this.tbD.Text = "4";this.tbK.Text = "1";this.tbL.Text = "2";}private void set2()...{this.tbA.Text = "1";this.tbB.Text = "1.5";this.tbC.Text = "2";this.tbD.Text = "2.5";this.tbK.Text = "1";this.tbL.Text = "2";}private void set3()...{this.tbA.Text = "0.5";this.tbB.Text = "1.5";this.tbC.Text = "2";this.tbD.Text = "3";this.tbK.Text = "3";this.tbL.Text = "2";}private void set4()...{this.tbA.Text = "1.5";this.tbB.Text = "1.5";this.tbC.Text = "2";this.tbD.Text = "2.5";this.tbK.Text = "0.5";this.tbL.Text = "2";}private void set5()...{this.tbA.Text = "2";this.tbB.Text = "2.5";this.tbC.Text = "3";this.tbD.Text = "3.5";this.tbK.Text = "4";this.tbL.Text = "6";}private void set6()...{this.tbA.Text = "0.5";this.tbB.Text = "1.5";this.tbC.Text = "2";this.tbD.Text = "2.5";this.tbK.Text = "2";this.tbL.Text = "4";}public Form1()...{InitializeComponent();}private void Form1_Load(object sender, EventArgs e)...{//set1();}private void Form1_Paint(object sender, PaintEventArgs e)...{}private void pictureBox1_Paint(object sender, PaintEventArgs e)...{float d;float x1;float x2;float y1;float y2;PointF p1;PointF p2;int unit = 40;//放大倍数Font font = new Font("MS UI Gothic", 12);SolidBrush brush = new SolidBrush(Color.Black);float interval = 0.001F; //步进刻度,值越小越精确(必须大小0),但速度也越慢 PointF o = new PointF(this.pictureBox1.Width / 2,this.pictureBox1.Height / 2);e.Graphics.DrawLine(Pens.Red, 0, this.pictureBox1.Height / 2,this.pictureBox1.Width, this.pictureBox1.Height / 2);e.Graphics.DrawLine(Pens.Red, this.pictureBox1.Width / 2, 0,this.pictureBox1.Width / 2, this.pictureBox1.Height);e.Graphics.DrawString("O", font, brush, o);if (type1 == 0)...{for (d = -6.28F; d < 6.28F; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(unit * System.Math.Sin(d));y2 = o.Y - (float)(unit * System.Math.Sin(d + interval));p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Black, p1, p2); }}else if (type1 == 1)...{//set1();PointF o1 = new PointF(this.pictureBox1.Width/2,this.pictureBox1.Height / 4);e.Graphics.DrawString("1", font, brush, o1);if (type2 == 1)...{for (d = 0; d < a; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(this.pictureBox1.Height / 4);y2 = o.Y - (float)(this.pictureBox1.Height / 4);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Black, p1, p2);tempx = x2;tempy = this.pictureBox1.Height/2;}PointF o2 = new PointF(tempx, tempy);e.Graphics.DrawString(a.ToString(), font, brush, o2);}else if (type2 == 2)...{for (d = a; d < 2*a; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(this.pictureBox1.Height / 4);y2 = o.Y - (float)(this.pictureBox1.Height / 4);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}PointF o2 = new PointF(tempx, tempy);e.Graphics.DrawString(a.ToString(), font, brush, o2);}else if (type2 == 3)...{for (d = a; d <b; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(this.pictureBox1.Height / 4);y2 = o.Y - (float)(this.pictureBox1.Height / 4);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}PointF o2 = new PointF(tempx, tempy);e.Graphics.DrawString(a.ToString(), font, brush, o2);}}else if (type1 == 2)...{//set2();PointF o1 = new PointF(this.pictureBox1.Width/2,this.pictureBox1.Height / 4);e.Graphics.DrawString("1", font, brush, o1);if (type2 == 1)...{for (d = 0; d <=a; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(1*unit);y2 = o.Y - (float)(1*unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}for (d = a; d < b; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1=o.Y-(float)(unit*((b-d)/(b-a)));y2=o.Y-(float)(unit*((b-d-interval)/(b-a)));p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}}else if(type2==2)...{for (d = a; d < b; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1=o.Y-(float)(unit*((d-a)/(b-a)));y2=o.Y-(float)(unit*((d-a-interval)/(b-a)));p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}for (d = b; d <= (b+a); d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(1 * unit);y2 = o.Y - (float)(1 * unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}}else if (type2 == 3)...{for (d = a; d < b; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(unit * ((d - a) / (b - a)));y2 = o.Y - (float)(unit * ((d - a - interval) / (b - a)));p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}for (d = b; d <= c; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(1 * unit);y2 = o.Y - (float)(1 * unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}for (d = c; d < d1; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(unit * ((d1 - d) / (d1 - c)));y2 = o.Y - (float)(unit * ((d1 - d - interval) / (d1 - c)));p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}}}else if (type1 == 3)...{//set3();PointF o1 = new PointF(this.pictureBox1.Width / 2,this.pictureBox1.Height / 4);e.Graphics.DrawString("1", font, brush, o1);if (type2 == 1)...{for (d = 0; d <= a; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(1 * unit);y2 = o.Y - (float)(1 * unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}for (d = a; d < b; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(unit * (System.Math.Pow((b-d)/(b-a),k)));y2 = o.Y - (float)(unit *(System.Math.Pow((b - d - interval) / (b - a),k)));p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}}else if (type2 == 2)...{for (d = a; d < b; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(unit *(System.Math.Pow((d - a) / (b - a), k)));y2 = o.Y - (float)(unit *(System.Math.Pow((d - a - interval) / (b - a), k)));p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}for (d = b; d <= (a+b); d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(1 * unit);y2 = o.Y - (float)(1 * unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}}else if (type2 == 3)...{for (d = a; d < b; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(unit *(System.Math.Pow((d - a) / (b - a), k)));y2 = o.Y - (float)(unit *(System.Math.Pow((d - a - interval) / (b - a), k)));p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}for (d = b; d <= c; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(1 * unit);y2 = o.Y - (float)(1 * unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}for (d = c; d < d1; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(unit *(System.Math.Pow((d1 - d) / (d1- c), k)));y2 = o.Y - (float)(unit *(System.Math.Pow((d1 - d - interval) / (d1 - c), k)));p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}}}else if (type1 == 4)...{//set4();PointF o1 = new PointF(this.pictureBox1.Width / 2,this.pictureBox1.Height / 4);e.Graphics.DrawString("1", font, brush, o1);if (type2 == 3)...{for (d = 0; d <= 2*a; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(System.Math.Exp(-((d-a)/k)*((d-a)/k)) * unit);y2 = o.Y - (float)(System.Math.Exp(-((d-interval - a) / k)* ((d-interval - a) / k)) * unit );p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}}else if (type2 == 1)...{for (d = 0; d <= a; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(1 * unit);y2 = o.Y - (float)(1 * unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}for (d = a; d <= 2 * a; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(System.Math.Exp(-((d - a) / k)* ((d - a) / k)) * unit);y2 = o.Y - (float)(System.Math.Exp(-((d - interval - a) / k)* ((d - interval - a) / k)) * unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}}else if (type2 == 2)...{for (d = a; d <= 2 * a; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(System.Math.Exp(-((d - a) / k)* ((d - a) / k)) * unit);y2 = o.Y - (float)(1-System.Math.Exp(-((d - interval - a) / k)* ((d - interval - a) / k)) * unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}}}else if (type1 == 5)...{//set5();PointF o1 = new PointF(this.pictureBox1.Width / 2,this.pictureBox1.Height / 4);e.Graphics.DrawString("1", font, brush, o1);if (type2 == 3)...{for (d = 0; d <= 2 * a; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)((1.0/(1+k*System.Math.Pow(d-a,l))) * unit);y2 = o.Y - (float)((1.0 / (1 + k *System.Math.Pow(d-interval - a, l))) * unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}}else if (type2 == 1)...{for (d = 0; d <= a; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(1 * unit);y2 = o.Y - (float)(1 * unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}for (d = a; d <= 2 * a; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)((1.0 / (1 + k* System.Math.Pow(d - a, l))) * unit);y2 = o.Y - (float)((1.0 / (1 + k* System.Math.Pow(d - interval - a, l))) * unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}}else if (type2 == 2)...{for (d = a; d <= 2 * a; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)((1.0 / (1 + k* System.Math.Pow(d - a, -l))) * unit);y2 = o.Y - (float)((1.0 / (1 + k* System.Math.Pow(d - interval - a, -l))) * unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}for (d = 2*a; d <= 3*a; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(1 * unit);y2 = o.Y - (float)(1 * unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}}}else if (type1 == 6)...{//set6();PointF o1 = new PointF(this.pictureBox1.Width / 2,this.pictureBox1.Height / 4);e.Graphics.DrawString("1", font, brush, o1);if (type2 == 3)...{for (d =-b; d < -a; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)((0.5 + 0.5 *System.Math.Sin((d-(a+b)/2)*(System.Math.PI/(b-a)))) * unit);y2 = o.Y - (float)((0.5 + 0.5 *System.Math.Sin((d-interval - (a + b) / 2)* (System.Math.PI / (b - a)))) * unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}for (d = -a; d < a; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(1* unit);y2 = o.Y - (float)(1 * unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}for (d = a; d < b; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)((0.5 - 0.5 * System.Math.Sin((d - (a + b) / 2)* (System.Math.PI / (b - a)))) * unit);y2 = o.Y - (float)((0.5 - 0.5 *System.Math.Sin((d - interval - (a + b) / 2)* (System.Math.PI / (b - a)))) * unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}}else if (type2 == 1)...{for (d = 0; d < a; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(1 * unit);y2 = o.Y - (float)(1 * unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}for (d = a; d < b; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)((0.5 - 0.5* System.Math.Sin((d - (a + b) / 2) * (System.Math.PI / (b - a)))) * unit);y2 = o.Y - (float)((0.5 - 0.5* System.Math.Sin((d - interval - (a + b) / 2)* (System.Math.PI / (b - a)))) * unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}}else if (type2 == 2)...{for (d = a; d < b; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)((0.5 + 0.5* System.Math.Sin((d - (a + b) / 2) * (System.Math.PI / (b - a)))) * unit);y2 = o.Y - (float)((0.5 + 0.5* System.Math.Sin((d - interval - (a + b) / 2)* (System.Math.PI / (b - a)))) * unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}for (d = b; d < c; d += interval)...{x1 = o.X + d * unit;x2 = o.X + (d + interval) * unit;y1 = o.Y - (float)(1 * unit);y2 = o.Y - (float)(1 * unit);p1 = new PointF(x1, y1);p2 = new PointF(x2, y2);e.Graphics.DrawLine(Pens.Blue, p1, p2);}}}}private void button1_Click(object sender, EventArgs e)...{InitArray();Graphics g = Graphics.FromHwnd(this.pictureBox1.Handle);PaintEventArgs e1 = new PaintEventArgs(g,this.pictureBox1.ClientRectangle);this.pictureBox1_Paint(this.pictureBox1, e1);g.Dispose(); }}}