asp.net C # drawing Taiji __.net

Finished Product chart:

HTML page:

Note Settings

Contenttype= "Image/jpeg"

<%@ Page language= "C #" autoeventwireup= "true" codefile= "TaiJiTu.aspx.cs" inherits= "Taijitu" contenttype= "image/" Jpeg "%>

<! DOCTYPE html>

 

Background code:


Using System;
Using System.Drawing;
Using System.Drawing.Drawing2D;

Using System.Drawing.Imaging;
    Public partial class TaiJiTu:System.Web.UI.Page {private encoder myencoder;
    Private Encoderparameter Myencoderparameter;
    Private EncoderParameters myencoderparameters;                 protected void Page_Load (object sender, EventArgs e) {int imgwidth = 400;      Image size int eyeradius = IMGWIDTH/20;    Fish eye radius int headdiameter = IMGWIDTH/2;
        Fish head diameter Bitmap image = new Bitmap (ImgWidth, imgwidth); Image.

        Setresolution (300, 300);

        Graphics Graphics = graphics.fromimage (image);
        Set image quality graphics.compositingquality = compositingquality.highquality; Graphics.
        SmoothingMode = Smoothingmode.antialias; Graphics.

        Interpolationmode = Interpolationmode.highqualitybicubic;
        The background is filled with white Brush = new SolidBrush (color.white); Graphics. FillRectangle (White, new Rectangle (0, 0, imGwidth, ImgWidth)); Brush blue = new SolidBrush (color.blue);//define the color brush Brush red = new SolidBrush (color.red);//define Red brush//whole round fill blue Color graphics.

        FillPie (blue, 0, 0, imgwidth, imgwidth, 0, 360);  Defines the path to the right (Red section) GraphicsPath redpath = new GraphicsPath (),//initialization path Redpath.addarc (0, 0, ImgWidth, ImgWidth,
        0,-180);
        Redpath.addarc (0, HEADDIAMETER/2, Headdiameter, Headdiameter, 0,-180);

        Redpath.addarc (Headdiameter, HEADDIAMETER/2, Headdiameter, Headdiameter, 0, 180); Fills the right part of the graphics.

        FillPath (red, Redpath); Fill red eye graphics. 
        FillPie (Red, New Rectangle (HEADDIAMETER/2-Eyeradius, Headdiameter-eyeradius, Eyeradius * 2, Eyeradius * 2), 0, 360); Filled with blue eyes graphics. FillPie (Blue, new Rectangle (Headdiameter + HEADDIAMETER/2-Eyeradius, Headdiameter-eyeradius, Eyeradius * 2, Eyeradiu
        
        S * 2), 0, 360); Graphics.

        Dispose ();
     Write to the response output stream, general quality   Image.


        Save (Response.outputstream, imageformat.jpeg);
        Modify picture Preservation quality ImageCodecInfo Myimagecodecinfo = Getencoder (imageformat.jpeg);
        Myencoder = encoder.quality;
        Myencoderparameters = new EncoderParameters (1);
        Picture quality level Myencoderparameter = new Encoderparameter (Myencoder, 100L);

        Myencoderparameters.param[0] = Myencoderparameter; Outputs the image using the specified parameters.
    Save (Response.outputstream, Myimagecodecinfo, myencoderparameters); private static ImageCodecInfo Getencoder (imageformat format) {imagecodecinfo[] codecs = ImageCodecInfo.

        Getimageencoders (); foreach (ImageCodecInfo codec in codecs) {if (codec. FormatID = = format.
            GUID) {return codec;
    } return null; }
}