using ZedGraph
参考:http://zedgraph.org/wiki/index.php?title=Sample_Graphs效果如下:
1
2
using
System;3
using
System.Collections;4
using
System.ComponentModel;5
using
System.Data;6
using
System.Drawing;7
using
System.Web;8
using
System.Web.SessionState;9
using
System.Web.UI;10
using
System.Web.UI.WebControls;11
using
System.Web.UI.HtmlControls;12
using
ZedGraph;13
using
ZedGraph.Web;14 15
string
typesign
=
""
; 16
private
void
Page_Load(
object
sender, System.EventArgs e)17 
{18  ZedGraphWeb1.OutputFormat = ZedGraphWeb.ZedGraphWebFormat.Gif;19 typesign = Request.QueryString["typesign"];20  }
21 22
private
void
InitializeComponent()23
{24 this.Load += new System.EventHandler(this.Page_Load);25 this.ZedGraphWeb1.RenderGraph += new ZedGraphWebControlEventHandler(this.OnRenderGraph);26 27 }
28 29
private
void
OnRenderGraph(ZedGraphWeb zgw, Graphics g, MasterPane masterPane)30
{31 // 初始化画图面版32 GraphPane myPane = masterPane[0]; 33 if (typesign == "bar")34  { 35 36 // 画图面版标题37 myPane.Title.Text = "收入统计";38 // 画图面版X标题39 myPane.XAxis.Title.Text = "区域";40 41 //初始化数据42 PointPairList list = new PointPairList();43 PointPairList list2 = new PointPairList();44 PointPairList list3 = new PointPairList();45 Random rand = new Random();46 double total = 0;47 for (double x = 0; x < 5; x += 1.0)48 {49 double y = rand.NextDouble() * 100;50 double y2 = rand.NextDouble() * 100;51 double y3 = rand.NextDouble() * 100;52 list.Add(x, y);53 list2.Add(x, y2);54 list3.Add(x, y3);55 56 total+=y;57  } 58 59 // 画图面版Y标题60 myPane.YAxis.Title.Text = "销售总额:"+total.ToString("F")+" 元";61 //柱的画笔62 // public BarItem AddBar(string 名称, IPointList 数据, Color 颜色);63 BarItem myCurve = myPane.AddBar("收入", list, Color.Blue);64 myCurve.Bar.Fill = new Fill(Color.Blue, Color.White, Color.Blue);65 BarItem myCurve2 = myPane.AddBar("买农药", list2, Color.Red);66 myCurve2.Bar.Fill = new Fill(Color.Red, Color.White, Color.Red);67 BarItem myCurve3 = myPane.AddBar("买化肥", list3, Color.Green);68 myCurve3.Bar.Fill = new Fill(Color.Green, Color.White, Color.Green);69 70 myPane.XAxis.MajorTic.IsBetweenLabels = true;71 //XAxis标注72 string[] labels = { "橘子", "西瓜", "梨", "桃子", "枣子" };73 myPane.XAxis.Scale.TextLabels = labels;74 myPane.XAxis.Type = AxisType.Text;75 //图区以外的颜色76 myPane.Fill = new Fill(Color.White, Color.FromArgb(200, 200, 255), 45.0f);77 //背景颜色78 myPane.Chart.Fill = new Fill(Color.Red, Color.LightGoldenrodYellow, 45.0f);79 masterPane.AxisChange(g); 80 81 }82 else if(typesign == "pie")83 {84 85 // 设置画版区的标题 86 myPane.Title.Text = "2007 fruit Sales\n($M)";//\n:换行87 //文字是否斜体88 myPane.Title.FontSpec.IsItalic = true;89 //字体大小90 myPane.Title.FontSpec.Size = 24f;91 //字体92 myPane.Title.FontSpec.Family = "Times New Roman";93 94 // 填充Pane背景颜色和倾斜度95 myPane.Fill = new Fill(Color.White, Color.Goldenrod, 45.0f);96 // 背景填充类型97 myPane.Chart.Fill.Type = FillType.None;98 99 // 设置location100 myPane.Legend.Position = LegendPos.Float;101 myPane.Legend.Location = new Location(0.95f, 0.15f, CoordType.PaneFraction,102 AlignH.Right, AlignV.Top);103 //slices文字大小104 myPane.Legend.FontSpec.Size = 10f;105 myPane.Legend.IsHStack = false;106 107 // 添加一切片值108 // public PieItem AddPieSlice(double 数据, Color 大圆里的该切片颜色, Color 大圆里的该切片颜色, float fillAngle, double displacement, string label);109 PieItem segment1 = myPane.AddPieSlice(20, Color.Navy, Color.White, 45f, 0, "橘子");110 PieItem segment3 = myPane.AddPieSlice(30, Color.Purple, Color.White, 45f, .0, "西瓜");111 PieItem segment4 = myPane.AddPieSlice(10.21, Color.LimeGreen, Color.White, 45f, 0, "梨");112 PieItem segment2 = myPane.AddPieSlice(40, Color.SandyBrown, Color.White, 45f, 0.2, "桃子");113 PieItem segment6 = myPane.AddPieSlice(250, Color.Red, Color.White, 45f, 0, "枣子");114 PieItem segment7 = myPane.AddPieSlice(50, Color.Blue, Color.White, 45f, 0.2, "蔬菜");115 PieItem segment8 = myPane.AddPieSlice(400, Color.Green, Color.White, 45f, 0, "玉米");116 PieItem segment9 = myPane.AddPieSlice(50, Color.Yellow, Color.White, 45f, 0.2, "地瓜");117 //标签背景颜色118 segment2.LabelDetail.FontSpec.FontColor = Color.Red;119 120 // 总额 121 CurveList curves = myPane.CurveList;122 double total = 0;123 for (int x = 0; x < curves.Count; x++)124 total += ((PieItem)curves[x]).Value;125 126 // 给Total赋值127 TextObj text = new TextObj("Total 2004 Sales\n" + "$" + total.ToString() + "M",128 0.18F, 0.40F, CoordType.PaneFraction);129 //text的Location设置130 text.Location.AlignH = AlignH.Center;131 text.Location.AlignV = AlignV.Bottom;132 //是否有边框133 text.FontSpec.Border.IsVisible = false;134 //区域的背景色135 text.FontSpec.Fill = new Fill(Color.White, Color.FromArgb(255, 100, 100), 45F);136 text.FontSpec.StringAlignment = StringAlignment.Center;137 myPane.GraphObjList.Add(text);138 139 // 创建一个阴影区域，看起来有渐变140 TextObj text2 = new TextObj(text);141 //背景色142 text2.FontSpec.Fill = new Fill(Color.Black);143 //text2.Location144 text2.Location.X += 0.008f;145 text2.Location.Y += 0.01f;146 myPane.GraphObjList.Add(text2);147 masterPane.AxisChange(g);148 }149 else if (typesign == "line")150 { 151 //设置标题和x,y坐标的文字152 myPane.Title.Text = "Line Graph with Band Demo";153 myPane.XAxis.Title.Text = "Sequence";154 myPane.YAxis.Title.Text = "Temperature, C";155 156 // 设置初始数据157 double[] y = { 100, 115, 75, 22, 98, 40, 10 };158 double[] y2 = { 90, 100, 95, 35, 80, 35, 35 };159 double[] y3 = { 80, 110, 65, 15, 54, 67, 18 };160 double[] x = { 100, 200, 300, 400, 500, 600, 700 };161 162 // 填充axis背景颜色和倾斜度163 myPane.Chart.Fill = new Fill( Color.FromArgb( 255, 255, 245), Color.FromArgb( 255, 255, 190), 90F );164 165 166 //创建一条红色的线Curve 1167 LineItem myCurve = myPane.AddCurve( "收入", x, y, Color.Red );168 //用红色填充,使符号不透明(可以填充你需要的颜色) 169 myCurve.Symbol.Fill = new Fill( Color.Red);170 171 // 创建一条Blue色的线Curve 2,"Curve2",你可以改变名称172 myCurve = myPane.AddCurve( "成本 ", x, y2, Color.Blue );173 // Make the symbols opaque by filling them with white174 myCurve.Symbol.Fill = new Fill( Color.White );175 176 // 创建一条Green色的线Curve 3,"Curve3",你可以改变名称177 myCurve = myPane.AddCurve( "时间", x, y3, Color.Green );178 // Make the symbols opaque by filling them with white179 myCurve.Symbol.Fill = new Fill( Color.White );180 181 182 //手动设置x axis范围183 myPane.XAxis.Scale.Min = 0;184 myPane.XAxis.Scale.Max = 800;185 // 显示 the Y axis格子线186 myPane.YAxis.MajorGrid.IsVisible = true;187 myPane.YAxis.MinorGrid.IsVisible = true;188 // 显示 the X axis格子线189 // myPane.XAxis.MinorGrid.IsVisible = true;190 // myPane.XAxis.MinorGrid.IsVisible = true;191 192 //添加一栏加亮显示区域 193 //x为基准,y为box的上线,width为box的width,height为box的height,borderColor为边界颜色,fillColor为box的填充颜色194 //public BoxObj(double x, double y, double width, double height, Color borderColor, Color fillColor);195 BoxObj box = new BoxObj( 0, 100, 800, 30, Color.Empty, 196 Color.FromArgb( 150, Color.LightGreen ) );197 box.Fill = new Fill( Color.White, Color.FromArgb( 200, Color.LightGreen ), 45.0F );198 //使用BehindGrid区域,把加加亮显示区域叠在lines之下 199 box.ZOrder = ZOrder.F_BehindGrid;200 myPane.GraphObjList.Add( box );201 202 //添加文本到加亮区域,并对其进行设置(text:要显示的文本,以那为基准(x,y),coordType为什么类型,AlignV设置左右对齐方式,AlignV设置上下对齐方式)203 // public TextObj(string text, double x, double y, CoordType coordType, AlignH alignH, AlignV alignV);204 TextObj text = new TextObj( "基准线", 750, 85, CoordType.AxisXYScale,205 AlignH.Right, AlignV.Center );206 //是否有背景207 text.FontSpec.Fill.IsVisible = false;208 //是否有边框209 text.FontSpec.Border.IsVisible = false;210 //文字是否粗体211 text.FontSpec.IsBold = true;212 //文字是否斜体213 text.FontSpec.IsItalic = true;214 //填充215 myPane.GraphObjList.Add( text );216 217 }218 //保存位置219 // ZedGraphWeb1.RenderedImagePath = "~/Image/";220 }
221 }222 223
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