C#动态数据绘图graphic代码简单示例

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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