{"id":126,"date":"2010-06-18T09:46:15","date_gmt":"2010-06-18T09:46:15","guid":{"rendered":"069059b7ef840f0c74a814ec9237b6ec"},"modified":"2010-06-18T09:46:15","modified_gmt":"2010-06-18T09:46:15","slug":"","status":"publish","type":"post","link":"https:\/\/www.xiaobo.li\/notes\/archives\/126","title":{"rendered":"C#\u4e2d\u7528GDI+\u751f\u6210\u997c\u72b6\u56fe\u548c\u67f1\u72b6\u56fe"},"content":{"rendered":"

 <\/p>\n

using System;
using System.IO;\/\/\u7528\u4e8e\u6587\u4ef6\u5b58\u53d6 <\/span>
\n
using System.Data;\/\/\u7528\u4e8e\u6570\u636e\u8bbf\u95ee <\/span>
\n
using System.Drawing;\/\/\u63d0\u4f9b\u753bGDI+\u56fe\u5f62\u7684\u57fa\u672c\u529f\u80fd
using System.Drawing.Text;\/\/\u63d0\u4f9b\u753bGDI+\u56fe\u5f62\u7684\u9ad8\u7ea7\u529f\u80fd
using System.Drawing.Drawing2D;\/\/\u63d0\u4f9b\u753b\u9ad8\u7ea7\u4e8c\u7ef4\uff0c\u77e2\u91cf\u56fe\u5f62\u529f\u80fd
using System.Drawing.Imaging;\/\/\u63d0\u4f9b\u753bGDI+\u56fe\u5f62\u7684\u9ad8\u7ea7\u529f\u80fd
namespace lc.laili.Web.Code
{
\/\/\/ <summary>
\/\/\/ MyImage \u7684\u6458\u8981\u8bf4\u660e\u3002
\/\/\/ <\/summary>
public class MyImage
{
public MyImage()
{
   \/\/
   \/\/ TODO: \u5728\u6b64\u5904\u6dfb\u52a0\u6784\u9020\u51fd\u6570\u903b\u8f91
   \/\/<\/p>\n

}<\/p>\n

 <\/p>\n

\/\/\/ <summary>
\/\/\/ \u6570\u636e\u6e90\u662fPieChartValue\u5bf9\u8c61\u7684\u997c\u72b6\u56fe
\/\/\/ <\/summary>
\/\/\/ <param name="title">\u997c\u72b6\u56fe\u5927\u6807\u9898<\/param>
\/\/\/ <param name="subTitle">\u997c\u72b6\u56fe\u5c0f\u6807\u9898<\/param>
\/\/\/ <param name="width">\u56fe\u5bbd<\/param>
\/\/\/ <param name="height">\u56fe\u9ad8<\/param>
\/\/\/ <param name="Mydata">PieChartValue\u5bf9\u8c61<\/param>
\/\/\/ <returns>\u997c\u72b6\u56fe\u8def\u5f84<\/returns>
public string Render(string title, string subTitle, int width, int height, PieChartValue[] Mydata)
{
   const int SIDE_LENGTH = 400;
   const int PIE_DIAMETER = 200;
   \/\/DataTable dt = DataTable;<\/p>\n

   \/\/\u901a\u8fc7\u8f93\u5165\u53c2\u6570\uff0c\u53d6\u5f97\u997c\u56fe\u4e2d\u7684\u603b\u57fa\u6570
   float sumData = 0;
   for (int i = 0; i < Mydata.Length; i++)
   {
    sumData += Convert.ToSingle(Mydata[i].MValue);
   }
   \/\/\u4ea7\u751f\u4e00\u4e2aimage\u5bf9\u8c61\uff0c\u5e76\u7531\u6b64\u4ea7\u751f\u4e00\u4e2aGraphics\u5bf9\u8c61
   Bitmap bm = new Bitmap(width, height);
   Graphics g = Graphics.FromImage(bm);
   \/\/\u8bbe\u7f6e\u5bf9\u8c61g\u7684\u5c5e\u6027
   g.ScaleTransform((Convert.ToSingle(width)) \/ SIDE_LENGTH, (Convert.ToSingle(height)) \/ SIDE_LENGTH);
   g.SmoothingMode = SmoothingMode.Default;
   g.TextRenderingHint = TextRenderingHint.AntiAlias;<\/p>\n

   \/\/\u753b\u5e03\u548c\u8fb9\u7684\u8bbe\u5b9a
   g.Clear(Color.White);
   g.DrawRectangle(Pens.Black, 0, 0, SIDE_LENGTH - 1, SIDE_LENGTH - 1);
   \/\/\u753b\u997c\u56fe\u6807\u9898
   g.DrawString(title, new Font("Tahoma", 14), Brushes.Black, new PointF(5, 5));
   \/\/\u753b\u997c\u56fe\u7684\u56fe\u4f8b
   g.DrawString(subTitle, new Font("Tahoma", 12), Brushes.Black, new PointF(7, 35));
   \/\/\u753b\u997c\u56fe
   float curAngle = 0;
   float totalAngle = 0;
   for (int j = 0; j < Mydata.Length; j++)
   {
    curAngle = Convert.ToSingle(Mydata[j].MValue) \/ sumData * 360;<\/p>\n

    g.FillPie(new SolidBrush(ChartUtil.GetChartItemColor(j)), 100, 65, PIE_DIAMETER, PIE_DIAMETER, totalAngle, curAngle);
    g.DrawPie(Pens.Black, 100, 65, PIE_DIAMETER, PIE_DIAMETER, totalAngle, curAngle);
    totalAngle += curAngle;
   }
   \/\/\u753b\u56fe\u4f8b\u6846\u53ca\u5176\u6587\u5b57
   g.DrawRectangle(Pens.Black, 200, 300, 199, 99);
   g.DrawString("\u56fe\u8868\u8bf4\u660e", new Font("Tahoma", 12, FontStyle.Bold), Brushes.Black, new PointF(200, 300));<\/p>\n

   \/\/\u753b\u56fe\u4f8b\u5404\u9879
   PointF boxOrigin = new PointF(210, 330);
   PointF textOrigin = new PointF(235, 326);
   float percent = 0;
   for (int k = 0; k < Mydata.Length; k++)
   {
    g.FillRectangle(new SolidBrush(ChartUtil.GetChartItemColor(k)), boxOrigin.X, boxOrigin.Y, 20, 10);
    g.DrawRectangle(Pens.Black, boxOrigin.X, boxOrigin.Y, 20, 10);
    percent = Convert.ToSingle(Mydata[k].MValue) \/ sumData * 100;
    g.DrawString(Mydata[k].MValue.ToString() + " - " + Mydata[k].Name.ToString() + " (" + percent.ToString("0") + "%)", new Font("Tahoma", 10), Brushes.Black, textOrigin);
    boxOrigin.Y += 15;
    textOrigin.Y += 15;
   }
   \/\/\u56de\u6536\u8d44\u6e90
   g.Dispose();
\/\/\u6b64\u5904\u5b58\u50a8\u8def\u5f84\u9700\u8981\u81ea\u5df1\u6539<\/span>
\n
   System.Drawing.Image MyImage=(System.Drawing.Image)bm;
   string TruePath= System.Web.HttpContext.Current.Server.MapPath("~\/images");
   string TrueName=DateTime.Now.ToString("yyyyMMddhhmmss")+DateTime.Now.Millisecond;
   MyImage.Save(TruePath+"\\\\"+TrueName+".jpg<\/a>
\n", System.Drawing.Imaging.ImageFormat.Gif);
   return "~\/images\/"+TrueName+".jpg";
}<\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

\/\/\/ <summary>
\/\/\/ \u6570\u636e\u6e90\u662fBarChartValue\u5bf9\u8c61\u7684\u67f1\u72b6\u56fe
\/\/\/ <\/summary>
\/\/\/ <param name="title">\u5927\u6807\u9898<\/param>
\/\/\/ <param name="subTitle">\u5c0f\u6807\u9898<\/param>
\/\/\/ <param name="width">\u56fe\u5bbd<\/param>
\/\/\/ <param name="height">\u56fe\u9ad8<\/param>
\/\/\/ <param name="Mydata">BarChartValue\u5bf9\u8c61<\/param>
\/\/\/ <returns>\u67f1\u72b6\u56fe\u8def\u5f84<\/returns>
public string Render(string title, string subTitle, int width, int height, BarChartValue[] Mydata)
{
   const int SIDE_LENGTH = 400;
   const int CHART_TOP = 75;
   const int CHART_HEIGHT = 200;
   const int CHART_LEFT = 50;
   const int CHART_WIDTH = 300;<\/p>\n

   \/\/\u8ba1\u7b97\u6700\u9ad8\u7684\u70b9
   float highPoint = 0;
   for (int i=0; i < Mydata.Length;i++ )
   {
    if (highPoint < Convert.ToSingle(Mydata[i].MValue))
    {
     highPoint = Convert.ToSingle(Mydata[i].MValue);
    }
   }
   \/\/\u5efa\u7acb\u4e00\u4e2aGraphics\u5bf9\u8c61\u5b9e\u4f8b
   Bitmap bm = new Bitmap(width, height);<\/p>\n

    Graphics g = Graphics.FromImage(bm);
    \/\/\u8bbe\u7f6e\u6761\u56fe\u56fe\u5f62\u548c\u6587\u5b57\u5c5e\u6027
    g.ScaleTransform((Convert.ToSingle(width)) \/ SIDE_LENGTH, (Convert.ToSingle(height)) \/ SIDE_LENGTH);
    g.SmoothingMode = SmoothingMode.Default;
    g.TextRenderingHint = TextRenderingHint.AntiAlias;<\/p>\n

    \/\/\u8bbe\u5b9a\u753b\u5e03\u548c\u8fb9
    g.Clear(Color.White);
    g.DrawRectangle(Pens.Black, 0, 0, SIDE_LENGTH - 1, SIDE_LENGTH - 1);
    \/\/\u753b\u5927\u6807\u9898
    g.DrawString(title, new Font("Tahoma", 14), Brushes.Black, new PointF(5, 5));
    \/\/\u753b\u5c0f\u6807\u9898
    g.DrawString(subTitle, new Font("Tahoma", 12), Brushes.Black, new PointF(7, 35));
    \/\/\u753b\u6761\u5f62\u56fe
    float barWidth = CHART_WIDTH \/ (Mydata.Length * 2);
    PointF barOrigin = new PointF(CHART_LEFT + (barWidth \/ 2), 0);
    float barHeight = Mydata.Length;
    for (int i = 0; i < Mydata.Length; i++)
    {
     barHeight = Convert.ToSingle(Mydata[i].MValue) * 200 \/ highPoint * 1;
     barOrigin.Y = CHART_TOP + CHART_HEIGHT - barHeight;
     g.FillRectangle(new SolidBrush(ChartUtil.GetChartItemColor(i)), barOrigin.X, barOrigin.Y, barWidth, barHeight);<\/p>\n

\n

     g.DrawString(Mydata[i].Name, new Font("Tahoma", 3), Brushes.Black, new PointF(barOrigin.X-3, 277));<\/p>\n

 <\/p>\n

     barOrigin.X = barOrigin.X + (barWidth * 2);
    }
    \/\/\u8bbe\u7f6e\u8fb9
    g.DrawLine(new Pen(Color.Black, 2), new Point(CHART_LEFT, CHART_TOP), new Point(CHART_LEFT, CHART_TOP + CHART_HEIGHT));
    g.DrawLine(new Pen(Color.Black, 2), new Point(CHART_LEFT, CHART_TOP + CHART_HEIGHT), new Point(CHART_LEFT + CHART_WIDTH, CHART_TOP + CHART_HEIGHT));
    \/\/\u753b\u56fe\u4f8b\u6846\u548c\u6587\u5b57<\/p>\n

    \/\/g.DrawRectangle(Pens.Black, 200, 300, 199, 99);
    \/\/g.DrawString("\u56fe\u8868\u8bf4\u660e", new Font("Tahoma", 12, FontStyle.Bold), Brushes.Black, new PointF(200, 300));<\/p>\n

    g.DrawRectangle(new Pen(Color.Black, 1), 10, 290, 299, 110);
    g.DrawString("\u56fe\u8868\u8bf4\u660e", new Font("Tahoma", 10, FontStyle.Bold), Brushes.Black, new PointF(11, 290));<\/p>\n

    \/\/\u753b\u56fe\u4f8b
    PointF boxOrigin = new PointF(10, 310);
    PointF textOrigin = new PointF(35, 306);
    for (int i = 0; i < Mydata.Length; i++)
    {
     g.FillRectangle(new SolidBrush(ChartUtil.GetChartItemColor(i)), boxOrigin.X, boxOrigin.Y, 20, 10);
     g.DrawRectangle(Pens.Black, boxOrigin.X, boxOrigin.Y, 2, 1);
     g.DrawString(Mydata[i].Name.ToString() + " - " + Mydata[i].MValue.ToString(), new Font("Tahoma", 10), Brushes.Black, textOrigin);
     if(i<5)
     {
      boxOrigin.Y += 15;
      textOrigin.Y += 15;
     }
     else if(i==5)
     {
      boxOrigin.X = 150;
      boxOrigin.Y = 310;
      textOrigin.X = 176;
      textOrigin.Y = 306;<\/p>\n

     }
     else
     {
      boxOrigin.Y += 15;
      textOrigin.Y += 15;
     }<\/p>\n

    }
    \/\/\u8f93\u51fa\u56fe\u5f62
    g.Dispose();
\/\/\u6b64\u5904\u5b58\u50a8\u8def\u5f84\u9700\u8981\u81ea\u5df1\u6539<\/span>
\n
   System.Drawing.Image MyImage=(System.Drawing.Image)bm;
   string TruePath= System.Web.HttpContext.Current.Server.MapPath("~\/images");
   string TrueName=DateTime.Now.ToString("yyyyMMddhhmmss")+DateTime.Now.Millisecond;
   MyImage.Save(TruePath+"\\\\"+TrueName+".jpg<\/a>
\n", System.Drawing.Imaging.ImageFormat.Gif);
   return "~\/images\/"+TrueName+".jpg";<\/p>\n

}
}<\/p>\n

\/\/\/ <summary>
\/\/\/ \u9009\u62e9\u989c\u8272
\/\/\/ <\/summary>
public class ChartUtil
{
public ChartUtil()
{
}
public static Color GetChartItemColor(int itemIndex)
{
   Color selectedColor;
   switch (itemIndex)
   {
    case 0:
     selectedColor = Color.AliceBlue;
     break;
    case 1:
     selectedColor = Color.Red;
     break;
    case 2:
     selectedColor = Color.Yellow;
     break;
    case 3:
     selectedColor = Color.AntiqueWhite;
     break;
    case 4:
     selectedColor = Color.Aqua;
     break;
    case 5:
     selectedColor = Color.Aquamarine;
     break;
    case 6:
     selectedColor = Color.Azure;
     break;
    case 7:
     selectedColor = Color.Beige;
     break;
    case 8:
     selectedColor = Color.Black;
     break;
    case 9:
     selectedColor = Color.Brown;
     break;
    case 10:
     selectedColor = Color.Coral;
     break;
    case 11:
     selectedColor = Color.DarkCyan;
     break;
    case 12:
     selectedColor = Color.DarkOrange;
     break;
    default:
     selectedColor = Color.DarkViolet;
     break;
   }
   return selectedColor;
}
}<\/p>\n

\/\/\/ <summary>
\/\/\/ \u997c\u72b6\u56fe\u7684\u6570\u636e\u5bf9\u8c61
\/\/\/ <\/summary>
public class PieChartValue
{
public PieChartValue()
{<\/p>\n

}
public PieChartValue(string MyName, int Myvalue)
{
   Name = MyName;
   MValue = Myvalue;
}
private string name;
public string Name
{
   get
   {
    return name;
   }
   set
   {
    name = value;
   }
}<\/p>\n

private int mvalue;
public int MValue
{
   get
   {
    return mvalue;
   }
   set
   {
    mvalue = value;
   }
}
}<\/p>\n

\/\/\/ <summary>
\/\/\/ \u67f1\u72b6\u56fe\u7684\u6570\u636e\u5bf9\u8c61
\/\/\/ <\/summary>
public class BarChartValue
{
public BarChartValue()
{<\/p>\n

}
public BarChartValue(string MyName, int Myvalue)
{
   Name = MyName;
   MValue = Myvalue;
}
private string name;
public string Name
{
   get
   {
    return name;
   }
   set
   {
    name = value;
   }
}<\/p>\n

private int mvalue;
public int MValue
{
   get
   {
    return mvalue;
   }
   set
   {
    mvalue = value;
   }
}
}
}<\/p>\n

\u7528\u6cd5<\/p>\n

   #region \u751f\u6210\u67f1\u72b6\u56fe<\/p>\n

   MyImage MyMyImage = new MyImage();
   BarChartValue[] BarChartValue ={ <\/span>
\n
          new BarChartValue("\u7b2c1\u4e2a\u6708",5),
          new BarChartValue("\u7b2c2\u4e2a\u6708",2),
          new BarChartValue("\u7b2c3\u4e2a\u6708",3),
          new BarChartValue("\u7b2c4\u4e2a\u6708",4),
          new BarChartValue("\u7b2c5\u4e2a\u6708",5),
          new BarChartValue("\u7b2c6\u4e2a\u6708",6),
          new BarChartValue("\u7b2c7\u4e2a\u6708",7),
          new BarChartValue("\u7b2c8\u4e2a\u6708",8),
          new BarChartValue("\u7b2c9\u4e2a\u6708",9)<\/p>\n

             };
   Image1.ImageUrl = MyMyImage.Render("\u5168\u5e74\u7edf\u8ba1", "98\u5e74", 1000, 1000, BarChartValue);
   #endregion<\/p>\n

 <\/p>\n

   #region \u751f\u6210\u997c\u72b6\u56fe
   PieChartValue[] PieChartValue ={ <\/span>
\n
              new PieChartValue("\u7b2c\u4e00\u4e2a\u4ed3\u5e93",1),
              new PieChartValue("\u7b2c\u4e00\u4e2a\u4ed3\u5e93",2)
             };<\/p>\n

   Image2.ImageUrl = MyMyImage.Render("\u4ed3\u5e93\u7edf\u8ba1\u997c\u72b6\u56fe", "\u5c0f\u4ed3\u5e93", 500, 500, PieChartValue);
   #endregion<\/p>\n","protected":false},"excerpt":{"rendered":"

 <\/p>\n

using System;
using System.IO;\/\/\u7528\u4e8e\u6587\u4ef6\u5b58\u53d6 <\/span>
using System.Data;\/\/\u7528\u4e8e\u6570\u636e\u8bbf\u95ee <\/span>
using System.Drawing;\/\/\u63d0\u4f9b\u753bGDI+\u56fe\u5f62\u7684\u57fa\u672c\u529f\u80fd
using System.Drawing.Text;\/\/\u63d0\u4f9b\u753bGDI+\u56fe\u5f62\u7684\u9ad8\u7ea7\u529f\u80fd
using System.Drawing.Drawing2D;\/\/\u63d0\u4f9b\u753b\u9ad8\u7ea7\u4e8c\u7ef4\uff0c\u77e2\u91cf\u56fe\u5f62\u529f\u80fd
using System.Drawing.Imaging;\/\/\u63d0\u4f9b\u753bGDI+\u56fe\u5f62\u7684\u9ad8\u7ea7\u529f\u80fd
namespace lc.laili.Web.Code
{
\/\/\/ <summary>
\/\/\/ MyImage \u7684\u6458\u8981\u8bf4\u660e\u3002
\/\/\/ <\/summary>
public class MyImage
{
public MyImage()
{
   \/\/
   \/\/ TODO: \u5728\u6b64\u5904\u6dfb\u52a0\u6784\u9020\u51fd\u6570\u903b\u8f91
   \/\/<\/p>\n

}<\/p>\n

 <\/p>\n

\/\/\/ <summary>
\/\/\/ \u6570\u636e\u6e90\u662fPieChartValue\u5bf9\u8c61\u7684\u997c\u72b6\u56fe
\/\/\/ <\/summar...<\/p>\n

\u7ee7\u7eed\u9605\u8bfb →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[273],"tags":[16,47],"class_list":["post-126","post","type-post","status-publish","format-standard","hentry","category-article","tag-C","tag-GDI"],"_links":{"self":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts\/126","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/comments?post=126"}],"version-history":[{"count":0,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts\/126\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/media?parent=126"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/categories?post=126"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/tags?post=126"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}