c#-drawing a drawing

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 instance 7_7 drawing graphics {public partial class Firstform:fo        RM {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) {instance 7_8 draw rectangle Form8=new instance 7_8 draw Rectangle (); FORM8.        Show ();             } private void Button3_Click (object sender, EventArgs e) {instance 7_9 draw smooth curve form9 = new instance 7_9 draw smooth curve (); Form9.        Show (); } private void Button4_Click (object sender, EventArgs e) {instance 7_10 draw Bézier curve FORM10 = new instance 7_10 draw Bezier            Curve (); FORM10.        Show ();     private void Button5_click (object sender, EventArgs e) {       Instance 7_11 Draw Polygon Form11 = new instance 7_11 draw Polygon (); Form11.        Show ();            } private void Button6_click (object sender, EventArgs e) {instance 7_12 draw ellipse form12 = new instance 7_12 draw ellipse (); Form12.        Show ();            } private void Button7_click (object sender, EventArgs e) {instance 7_13 draw text Form13 = new instance 7_13 draw text (); Form13.        Show ();            } private void Button8_click (object sender, EventArgs e) {instance 7_14 display image form14 = new instance 7_14 display image (); Form14.        Show ();            } private void Button9_click (object sender, EventArgs e) {instance 7_15 refresh image form15 = new instance 7_15 refresh image (); Form15.        Show ();            } private void Button10_click (object sender, EventArgs e) {Draw Column chart formzx = new Draw Column chart ();        Formzx.show ();            } private void Button11_click (object sender, EventArgs e) {Verification Code YZM = new Verification Code (); Yzm.        Show (); } Private VOID Firstform_load (object sender, EventArgs e) {}}} 

/* * Draw straight lines using DrawLine and DrawLines. */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 instance 7_7 drawing graphics {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 (Ten), New Point (+));            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)        {        }}}    

Operation Result:

/* * Use DrawRectangle, FillRectangle method to draw, fill rectangle outline. */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 instance 7_8 Draw Rectangle {Public partial class instance 7_8 draw rectangle: Fo        RM {Public instance 7_8 draw rectangle () {InitializeComponent ();            The private void instance 7_8 draws the rectangle _paint (object sender, PaintEventArgs e) {Graphics g = e.graphics;            Pen p = new Pen (color.black, 2.0f);            Rectangle Rct1 = new Rectangle (new Point (Ten), New Size (80, 40));         G.drawrectangle (P, Rct1);            Draw the rectangle outline//Fill rectangle area Rectangle rct2 = new Rectangle (new Point (+), new Size (200, 50));            SolidBrush brush = new SolidBrush (Color.Blue);            G.fillrectangle (brush, RCT2);        G.dispose (); The private void instance 7_8 draws the rectangle _load (object sender, EventArgs e) {this. Text = "Instance 7-8Draw Rectangle "; }    }}

Operation Result:

/* * Use the DrawCurve method to draw a smooth curve. */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 instance 7_7 drawing graphics {Public    partial class instance 7_ 9 Draw Smooth curve: Form    {public        instance 7_9 draw Smooth curve ()        {            InitializeComponent ();        }        private void instance 7_9 draw Smooth curve _paint (object sender, PaintEventArgs e)        {            Graphics g = e.graphics;            Draw a smooth curve            pen p = new Pen (color.black, 2.0f);            Point[] points = {new Point (50,100), new Point (+), new point (+, +), new Point (                             300, 75) };            G.drawcurve (p, points, 0.8f);            G.dispose ();        }        private void instance 7_9 draw Smooth curve _load (object sender, EventArgs e)        {        }}}    

Operation result;

Draw Bézier curves 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 instance 7_7 drawing graphics {public    The partial class instance 7_10 draws a Bezier curve: the Form    {public        instance 7_10 draws the Bezier curve ()        {            InitializeComponent ();        }        private void Instance 7_10 draws Bezier _paint (object sender, PaintEventArgs e)        {            Graphics g = e.graphics;            Draw Bezier curve            pen p = new Pen (color.black, 2.0f);            Point P1 = new Point (.);            Point P2 = new Point (+);            Point p3 = new Point (n, a);            Point P4 = new Point (in.);            G.drawbezier (P, p1, p2, p3, p4);            G.dispose ();        }        private void instance 7_10 drawing Bézier curve _load (object sender, EventArgs e)        {        }}}    

Operation Result:

Draw, fill polygon 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 instance 7_7 drawing graphics {public partial        class instance 7_11 Draw polygon: Form {Public instance 7_11 draw polygon () {InitializeComponent ();            The private void instance 7_11 draws the polygon _paint (object sender, PaintEventArgs e) {Graphics g = e.graphics;            Draw Polygon Outline 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)});            Fill polygon Area 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 instance 7_11 draw polygon _load (object sender, EventArgs e) {}}}

Operation Result:

Draw ellipse 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 instance 7_7 drawing graphics {public    The partial class instance 7_12 draws an ellipse: the Form    {public        instance 7_12 draws the ellipse ()        {            InitializeComponent ();        }        private void Instance 7_12 draws an ellipse _paint (object sender, PaintEventArgs e)        {            Graphics g = e.graphics;            Pen p = new Pen (color.black, 2.0f);            G.drawellipse (P, new Rectangle (+, +,));     Draw Ellipse            SolidBrush brush = new SolidBrush (color.blue);            G.fillellipse (Brush, new Rectangle (+/-);  Fill ellipse            g.dispose ();        }        private void Instance 7_12 draw ellipse _load (object sender, EventArgs e)        {        }}}    

Operation Result:

Draws the text that is filled by the picture. 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 instance 7_7 drawing graphics {        Public partial class instance 7_13 drawing text: Form {Public instance 7_13 draw text () {InitializeComponent ();            } private void instance 7_13 draw literal _paint (object sender, PaintEventArgs e) {Graphics g = e.graphics;            Image image = Image.FromFile (Application.startuppath + @ "\p01.jpg");            TextureBrush brush = new TextureBrush (image);            Create fonts Font font = new Font ("Blackbody", Fontstyle.underline ^ fontstyle.bold);            g.DrawString ("Yantai University", Font, brush, new Point (10, 10));        G.dispose (); } private void instance 7_13 draw text _load (object sender, EventArgs e) {}}}

Operation Result:

/* * Display images and save images. */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 instance 7_7 drawing graphics {Public partial class instance 7_14 display Image: F        ORM {Public instance 7_14 display image () {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); Draws the bitmap from the upper-left corner of the PictureBox1 control.            Dispose ();        G.dispose (); private void Button2_Click (object sender, EventArgs e) {bitmap = new Bitmap (application.start            Uppath + @ "\p01.jpg");    Bitmap image = New Bitmap (picturebox1.width, picturebox1.height);            Save the image with the height and width of the picture frame 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 instance 7_14 display image _load (object sender, EventArgs e) {}}}

Operation Result:

Refreshes the image. 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 instance 7_7 drawing graphics {Public partial class instance 7_15 Refresh Image: F        ORM {Public instance 7_15 refresh image () {InitializeComponent ();        } Bitmap Bitmap;        Graphics G; private void Button1_Click (object sender, EventArgs e) {bitmap = new Bitmap (picturebox1.width, Pictureb Ox1.            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 instance 7_15 Refresh image _load (object sender, EventArgs e) {}}}

Operation Result:

c#-drawing a drawing