C#—繪製圖形

標籤：

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;namespace 執行個體7_7繪製圖形{    public partial class FirstForm : Form    {        public FirstForm()        {            InitializeComponent();        }        private void button1_Click(object sender, EventArgs e)        {            Form1 f1 = new Form1();            f1.Show();        }        private void button2_Click(object sender, EventArgs e)        {            執行個體7_8繪製矩形  form8=new 執行個體7_8繪製矩形 ();            form8.Show();        }        private void button3_Click(object sender, EventArgs e)        {            執行個體7_9繪製平滑曲線 form9 = new 執行個體7_9繪製平滑曲線();            form9.Show();        }        private void button4_Click(object sender, EventArgs e)        {            執行個體7_10繪製貝茲路徑 form10 = new 執行個體7_10繪製貝茲路徑();            form10.Show();        }        private void button5_Click(object sender, EventArgs e)        {            執行個體7_11繪製多邊形 form11 = new 執行個體7_11繪製多邊形();            form11.Show();        }        private void button6_Click(object sender, EventArgs e)        {            執行個體7_12繪製橢圓 form12 = new 執行個體7_12繪製橢圓();            form12.Show();        }        private void button7_Click(object sender, EventArgs e)        {            執行個體7_13繪製文字 form13 = new 執行個體7_13繪製文字();            form13.Show();        }        private void button8_Click(object sender, EventArgs e)        {            執行個體7_14顯示映像 form14 = new 執行個體7_14顯示映像();            form14.Show();        }        private void button9_Click(object sender, EventArgs e)        {            執行個體7_15重新整理映像 form15 = new 執行個體7_15重新整理映像();            form15.Show();        }        private void button10_Click(object sender, EventArgs e)        {            繪製直條圖 formZX = new 繪製直條圖();            formZX.Show();        }        private void button11_Click(object sender, EventArgs e)        {            驗證碼 yzm = new 驗證碼();            yzm.Show();        }        private void FirstForm_Load(object sender, EventArgs e)        {        }     }}

/* * 使用DrawLine和DrawLines繪製直線。 */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;namespace 執行個體7_7繪製圖形{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        private void Form1_Paint(object sender, PaintEventArgs e)        {            Graphics g = e.Graphics;            Pen p = new Pen(Color.Black, 2.5f);            g.DrawLine(p, new Point(50, 10), new Point(250, 10));            Point[] points = { new Point(50,20),new Point(250,20),                                new Point(250,70), new Point(50,20)};            g.DrawLines(p, points  );            g.Dispose();        }        private void Form1_Load(object sender, EventArgs e)        {        }    }}

運行結果：

/* * 使用DrawRectangle、FillRectangle方法繪製、填充矩形輪廓。 */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;namespace 執行個體7_8繪製矩形{    public partial class 執行個體7_8繪製矩形 : Form    {        public 執行個體7_8繪製矩形()        {            InitializeComponent();        }        private void 執行個體7_8繪製矩形_Paint(object sender, PaintEventArgs e)        {            Graphics g = e.Graphics;            Pen p = new Pen(Color.Black, 2.0f);            Rectangle rct1 = new Rectangle(new Point(10, 10), new Size(80, 40));            g.DrawRectangle(p, rct1);         //繪製矩形輪廓            //充填矩形地區            Rectangle rct2 = new Rectangle(new Point(100, 80), new Size(200, 50));            SolidBrush brush = new SolidBrush(Color.Blue);            g.FillRectangle(brush, rct2);            g.Dispose();        }        private void 執行個體7_8繪製矩形_Load(object sender, EventArgs e)        {            this.Text = "執行個體7-8繪製矩形";        }    }}

運行結果：

/* * 使用DrawCurve方法繪製平滑曲線。 */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;namespace 執行個體7_7繪製圖形{    public partial class 執行個體7_9繪製平滑曲線 : Form    {        public 執行個體7_9繪製平滑曲線()        {            InitializeComponent();        }        private void 執行個體7_9繪製平滑曲線_Paint(object sender, PaintEventArgs e)        {            Graphics g = e.Graphics;            //繪製平滑曲線            Pen p = new Pen(Color.Black, 2.0f);            Point[] points = {new Point(50,100), new Point(100, 20),                             new Point(200, 100), new Point(250, 20), new Point(300, 75) };            g.DrawCurve(p, points, 0.8f);            g.Dispose();        }        private void 執行個體7_9繪製平滑曲線_Load(object sender, EventArgs e)        {        }    }}

運行結果；

//繪製貝茲路徑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;namespace 執行個體7_7繪製圖形{    public partial class 執行個體7_10繪製貝茲路徑 : Form    {        public 執行個體7_10繪製貝茲路徑()        {            InitializeComponent();        }        private void 執行個體7_10繪製貝茲路徑_Paint(object sender, PaintEventArgs e)        {            Graphics g = e.Graphics;            //繪製貝茲路徑            Pen p = new Pen(Color.Black, 2.0f);            Point p1 = new Point(50, 100);            Point p2 = new Point(100, 20);            Point p3 = new Point(200, 200);            Point p4 = new Point(250, 80);            g.DrawBezier(p, p1, p2, p3, p4);            g.Dispose();        }        private void 執行個體7_10繪製貝茲路徑_Load(object sender, EventArgs e)        {        }    }}

運行結果：

//繪製、填充多邊形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;namespace 執行個體7_7繪製圖形{    public partial class 執行個體7_11繪製多邊形 : Form    {        public 執行個體7_11繪製多邊形()        {            InitializeComponent();        }        private void 執行個體7_11繪製多邊形_Paint(object sender, PaintEventArgs e)        {            Graphics g = e.Graphics;            //繪製多邊形輪廓            Pen p = new Pen(Color.Black, 2.0f);            g.DrawPolygon(p, new Point[]{                         new Point(20,20),                         new Point(120,20),                         new Point(70,70),                         new Point(20,20)});            //充填多邊形地區            SolidBrush brush = new SolidBrush(Color.Blue);            Point[] points = {new Point(150,70), new Point(250,70),                              new Point(200,20), new Point(150,70) };            g.FillPolygon(brush, points );            g.Dispose();        }        private void 執行個體7_11繪製多邊形_Load(object sender, EventArgs e)        {        }    }}

運行結果：

//繪製橢圓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;namespace 執行個體7_7繪製圖形{    public partial class 執行個體7_12繪製橢圓 : Form    {        public 執行個體7_12繪製橢圓()        {            InitializeComponent();        }        private void 執行個體7_12繪製橢圓_Paint(object sender, PaintEventArgs e)        {            Graphics g = e.Graphics;            Pen p = new Pen(Color.Black, 2.0f);            g.DrawEllipse(p, new Rectangle(30, 30, 100, 60));     //繪製橢圓            SolidBrush brush = new SolidBrush(Color.Blue);            g.FillEllipse(brush, new Rectangle(180, 60, 100, 60));  //填充橢圓            g.Dispose();        }        private void 執行個體7_12繪製橢圓_Load(object sender, EventArgs e)        {        }    }}

運行結果：

//繪製文字，該文字由圖片填充。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 執行個體7_7繪製圖形{    public partial class 執行個體7_13繪製文字 : Form    {        public 執行個體7_13繪製文字()        {            InitializeComponent();        }        private void 執行個體7_13繪製文字_Paint(object sender, PaintEventArgs e)        {            Graphics g = e.Graphics;            Image image = Image.FromFile(Application.StartupPath + @"\p01.jpg");            TextureBrush brush = new TextureBrush(image );            //建立字型            Font font = new Font("黑體", 60, FontStyle.Underline ^ FontStyle.Bold);            g.DrawString("煙台大學", font, brush, new Point(10, 10));            g.Dispose();        }        private void 執行個體7_13繪製文字_Load(object sender, EventArgs e)        {        }    }}

運行結果：

/* * 顯示映像和儲存映像。 */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;namespace 執行個體7_7繪製圖形{    public partial class 執行個體7_14顯示映像 : Form    {        public 執行個體7_14顯示映像()        {            InitializeComponent();        }        Graphics g;        Bitmap bitmap ;        private void button1_Click(object sender, EventArgs e)        {            g = pictureBox1.CreateGraphics();            bitmap = new Bitmap(Application.StartupPath + @"\p01.jpg");            g.DrawImage(bitmap, 0, 0);     //從PictureBox1控制項的左上方開始繪製            bitmap.Dispose();            g.Dispose();        }        private void button2_Click(object sender, EventArgs e)        {            bitmap  = new Bitmap(Application.StartupPath +  @"\p01.jpg ");            Bitmap image = new Bitmap(pictureBox1.Width ,pictureBox1.Height );    //以圖片框的高度和寬度儲存映像            g = Graphics.FromImage(image);            g.DrawImage(bitmap, 0,0);            image.Save(@"D:\p01.gif", System.Drawing.Imaging.ImageFormat.Gif);            bitmap.Dispose();            image.Dispose();            g.Dispose();        }        private void 執行個體7_14顯示映像_Load(object sender, EventArgs e)        {        }    }}

運行結果：

//重新整理映像。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;namespace 執行個體7_7繪製圖形{    public partial class 執行個體7_15重新整理映像 : Form    {        public 執行個體7_15重新整理映像()        {            InitializeComponent();        }        Bitmap bitmap;        Graphics g;        private void button1_Click(object sender, EventArgs e)        {            bitmap = new Bitmap(pictureBox1.Width, pictureBox1.Height);            pictureBox1.BackgroundImage = bitmap;            g = Graphics.FromImage(bitmap);            g.Clear(pictureBox1.BackColor);            Pen  pen=new Pen (Color.Red ,3.0f );            Point p1 = new Point(10, 10);            Point p2 = new Point(150, 100);            g.DrawLine(pen, p1, p2);            g.Dispose();        }        private void button2_Click(object sender, EventArgs e)        {            bitmap = new Bitmap(pictureBox1.Width, pictureBox1.Height);            pictureBox1.BackgroundImage = bitmap;            g = Graphics.FromImage(bitmap);            g.Clear(pictureBox1.BackColor);                       Pen pen = new Pen(Color.Red, 3.0f);            Rectangle rec = new Rectangle(0, 0, 100, 100);            g.DrawEllipse(pen, rec);            g.Dispose();        }               private void 執行個體7_15重新整理映像_Load(object sender, EventArgs e)        {                  }    }}

運行結果：

C#—繪製圖形