C#动态数据绘图graphic的实现方法介绍

本文实例讲述了C#实现动态数据绘图graphic的方法。分享给大家供大家参考，具体如下：

using System;  using System.Collections.Generic;  using System.ComponentModel;  using System.Data;  using System.Drawing;  using System.Linq;  using System.Text;  using System.Windows.Forms;  using System.Drawing.Drawing2D;  namespace Drawing  {    public partial class Form1 : Form    {      public Form1()      {        InitializeComponent();      }      private int WidthAdded = 0;      private int HeightAdded = 0;      private int Added_Value = 15;      private int Incremented = 3;      private double Width_Max = 0.0f;      private double Height_Max = 0f;      private string hstrlink;      private string vstrlink;      private const int hor_kedu=17;      private const int ver_kedu = 13;      private double HelpRdm = 0;      private void Form1_Load(object sender, EventArgs e)      {        Width_Max=Convert.ToDouble(panel.ClientSize.Width);        Height_Max = Convert.ToDouble(panel.ClientSize.Height);        BtnStatusInfoForb();      }      private void button1_Click(object sender, EventArgs e)      {        Graphics myGraphics_framwork;        Pen myPen = new Pen(Color.Blue, 0.25f);        myGraphics_framwork = panel.CreateGraphics();        for (int Increment = 0; Increment < panel.Height; Increment += Incremented)        {          myGraphics_framwork.DrawLine(myPen, 0, HeightAdded, panel.ClientSize.Width, HeightAdded);          HeightAdded = HeightAdded + Added_Value;        }        for (int Increment = 0; Increment < panel.Height; Increment += Incremented)        {          myGraphics_framwork.DrawLine(myPen, WidthAdded, 0, WidthAdded, panel.ClientSize.Height);          WidthAdded = WidthAdded + Added_Value;        }        myGraphics_framwork.Dispose();        for (int hstart = 0; hstart < Width_Max; hstart += hor_kedu)        {          hstrlink = hstrlink + hstart.ToString() + "-";        }        label2.Text = hstrlink;        for (int start = (int)Height_Max; start > 0; start -= ver_kedu)        {          vstrlink = vstrlink + start.ToString() + "-" + "\n";        }        label3.Text = vstrlink + "0-";        BtnStatusInfoActi();        button1.Enabled = false;      }      private void BtnStatusInfoForb()      {        button2.Enabled = false;        button3.Enabled = false;        button4.Enabled = false;        trackBar1.Enabled = false;        Rec_NumBox.Enabled = false;      }      private void BtnStatusInfoActi()      {        button2.Enabled = true;        button3.Enabled = true;        button4.Enabled = true;        trackBar1.Enabled = true;        Rec_NumBox.Enabled = true;      }      private void myfun()      {        Graphics myGraphics = panel.CreateGraphics();        Font myFont = new Font("Times New Roman", 72, FontStyle.Italic);        Point startPoint = new Point(0, 0);        Point endPoint = new Point(30, 30);        LinearGradientBrush myBrush = new LinearGradientBrush(startPoint, endPoint, Color.Black, Color.Yellow);        myBrush.WrapMode = WrapMode.TileFlipXY;        myGraphics.DrawString("String", myFont, myBrush, 0, 0);      }      private void button2_Click(object sender, EventArgs e)      {        if (ParaBox1.Text == null)        {          MessageBox.Show("请输入矩形的高度");        }        else        {          try          {            Graphics myGraphics_Rectangle = panel.CreateGraphics();            Pen myPen_Rec = new Pen(Color.Red, 3);            Rectangle rect = new Rectangle();            rect.X = 20; rect.Y = panel.ClientSize.Height - Convert.ToInt32(ParaBox1.Text);            rect.Width = 20; rect.Height = panel.ClientSize.Height;            myGraphics_Rectangle = panel.CreateGraphics();            myGraphics_Rectangle.DrawRectangle(myPen_Rec, rect);            SolidBrush MyRectBrush = new SolidBrush(Color.Purple);            myGraphics_Rectangle.FillRectangle(MyRectBrush, rect);            myGraphics_Rectangle.Dispose();          }          catch (Exception Excp)          {            MessageBox.Show(Excp.Message);          }        }      }      /// <summary>      ///      /// </summary>      /// <param name="sender"></param>      /// <param name="e"></param>      private void button3_Click(object sender, EventArgs e)      {        Graphics myGraphics_Rectangle = panel.CreateGraphics();        if (Rec_NumBox == null)        {          MessageBox.Show("请输入你要绘制的矩形数量");        }        else        {          double count = Convert.ToInt32(Rec_NumBox.Text);          double TableSpace = (1 * Width_Max) / (4 * count);          double TableWidth = (3 * Width_Max) / (4 * count);          double RecOffset = TableWidth + TableSpace;//          Pen myPen_Rec = new Pen(Color.Red, 3);          for (long RectNum = 0; RectNum < count; RectNum++)          {            Random Radom = new Random();            System.Threading.Thread.Sleep(20);            double RandomHegiht =Radom.Next(0, Convert.ToInt32(Height_Max));            Rectangle rect = new Rectangle();            rect.X =Convert.ToInt32(RectNum*RecOffset);            rect.Y = Convert.ToInt32(panel.ClientSize.Height - RandomHegiht);            rect.Width = Convert.ToInt32(TableWidth);            rect.Height = panel.ClientSize.Height;            myGraphics_Rectangle = panel.CreateGraphics();            myGraphics_Rectangle.DrawRectangle(myPen_Rec, rect);            SolidBrush MyRectBrush = new SolidBrush(Color.Green);            myGraphics_Rectangle.FillRectangle(MyRectBrush, rect);          }        myGraphics_Rectangle.Dispose();        }        Rec_NumBox.Text = Added_Value.ToString();        Added_Value = Added_Value+50;      }      private void button4_Click(object sender, EventArgs e)      {        StringFormat sf=new StringFormat();        sf.Alignment = StringAlignment.Near;        Graphics myGraphics = panel.CreateGraphics();        RectangleF REf = new RectangleF(12, 30, 8, 38);        Font myFont = new Font("Times New Roman", 62, FontStyle.Italic);        Point startPoint = new Point(0, 0);        Point endPoint = new Point(30, 30);        LinearGradientBrush myBrush = new LinearGradientBrush(startPoint, endPoint, Color.Green, Color.Blue);        SolidBrush MyRectBrush = new SolidBrush(Color.Purple);        myBrush.WrapMode = WrapMode.TileFlipXY;        myGraphics.DrawString("b2spirit", myFont, myBrush, 0, 0);        Random r=new Random();        int temp=r.Next(10,300);        myGraphics.DrawString(temp.ToString(), myFont, MyRectBrush, REf, sf);      }      private void trackBar1_Scroll(object sender, EventArgs e)      {        TrackBar myTB=new TrackBar();        myTB=(TrackBar)sender;        Rec_NumBox.Text = myTB.Value.ToString();      }    }  }

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