using ZedGraph

参考:http://zedgraph.org/wiki/index.php?title=Sample_Graphs效果如下:

using System;
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using System.Collections;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Web;
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using System.Web.SessionState;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Web.UI.HtmlControls;
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using ZedGraph;
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using ZedGraph.Web;
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string typesign = "";
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private void Page_Load(object sender, System.EventArgs e)
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{
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ZedGraphWeb1.OutputFormat = ZedGraphWeb.ZedGraphWebFormat.Gif;
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typesign = Request.QueryString["typesign"];
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}
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private void InitializeComponent()
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{
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this.Load += new System.EventHandler(this.Page_Load);
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this.ZedGraphWeb1.RenderGraph += new ZedGraphWebControlEventHandler(this.OnRenderGraph);
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}
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private void OnRenderGraph(ZedGraphWeb zgw, Graphics g, MasterPane masterPane)
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{
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// 初始化画图面版
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GraphPane myPane = masterPane[0];
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if (typesign == "bar")
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{
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// 画图面版标题
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myPane.Title.Text = "收入统计";
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// 画图面版X标题
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myPane.XAxis.Title.Text = "区域";
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//初始化数据
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PointPairList list = new PointPairList();
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PointPairList list2 = new PointPairList();
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PointPairList list3 = new PointPairList();
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Random rand = new Random();
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double total = 0;
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for (double x = 0; x < 5; x += 1.0)
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{
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double y = rand.NextDouble() * 100;
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double y2 = rand.NextDouble() * 100;
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double y3 = rand.NextDouble() * 100;
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list.Add(x, y);
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list2.Add(x, y2);
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list3.Add(x, y3);
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total+=y;
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}
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// 画图面版Y标题
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myPane.YAxis.Title.Text = "销售总额:"+total.ToString("F")+" 元";
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//柱的画笔
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// public BarItem AddBar(string 名称, IPointList 数据, Color 颜色);
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BarItem myCurve = myPane.AddBar("收入", list, Color.Blue);
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myCurve.Bar.Fill = new Fill(Color.Blue, Color.White, Color.Blue);
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BarItem myCurve2 = myPane.AddBar("买农药", list2, Color.Red);
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myCurve2.Bar.Fill = new Fill(Color.Red, Color.White, Color.Red);
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BarItem myCurve3 = myPane.AddBar("买化肥", list3, Color.Green);
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myCurve3.Bar.Fill = new Fill(Color.Green, Color.White, Color.Green);
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myPane.XAxis.MajorTic.IsBetweenLabels = true;
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//XAxis标注
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string[] labels = { "橘子", "西瓜", "梨", "桃子", "枣子" };
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myPane.XAxis.Scale.TextLabels = labels;
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myPane.XAxis.Type = AxisType.Text;
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//图区以外的颜色
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myPane.Fill = new Fill(Color.White, Color.FromArgb(200, 200, 255), 45.0f);
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//背景颜色
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myPane.Chart.Fill = new Fill(Color.Red, Color.LightGoldenrodYellow, 45.0f);
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masterPane.AxisChange(g);
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}
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else if(typesign == "pie")
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{
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// 设置画版区的标题
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myPane.Title.Text = "2007 fruit Sales\n($M)";//\n:换行
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//文字是否斜体
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myPane.Title.FontSpec.IsItalic = true;
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//字体大小
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myPane.Title.FontSpec.Size = 24f;
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//字体
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myPane.Title.FontSpec.Family = "Times New Roman";
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// 填充Pane背景颜色和倾斜度
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myPane.Fill = new Fill(Color.White, Color.Goldenrod, 45.0f);
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// 背景填充类型
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myPane.Chart.Fill.Type = FillType.None;
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// 设置location
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myPane.Legend.Position = LegendPos.Float;
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myPane.Legend.Location = new Location(0.95f, 0.15f, CoordType.PaneFraction,
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AlignH.Right, AlignV.Top);
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//slices文字大小
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myPane.Legend.FontSpec.Size = 10f;
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myPane.Legend.IsHStack = false;
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// 添加一切片值
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// 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);
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PieItem segment1 = myPane.AddPieSlice(20, Color.Navy, Color.White, 45f, 0, "橘子");
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PieItem segment3 = myPane.AddPieSlice(30, Color.Purple, Color.White, 45f, .0, "西瓜");
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PieItem segment4 = myPane.AddPieSlice(10.21, Color.LimeGreen, Color.White, 45f, 0, "梨");
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PieItem segment2 = myPane.AddPieSlice(40, Color.SandyBrown, Color.White, 45f, 0.2, "桃子");
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PieItem segment6 = myPane.AddPieSlice(250, Color.Red, Color.White, 45f, 0, "枣子");
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PieItem segment7 = myPane.AddPieSlice(50, Color.Blue, Color.White, 45f, 0.2, "蔬菜");
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PieItem segment8 = myPane.AddPieSlice(400, Color.Green, Color.White, 45f, 0, "玉米");
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PieItem segment9 = myPane.AddPieSlice(50, Color.Yellow, Color.White, 45f, 0.2, "地瓜");
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//标签背景颜色
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segment2.LabelDetail.FontSpec.FontColor = Color.Red;
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// 总额
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CurveList curves = myPane.CurveList;
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double total = 0;
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for (int x = 0; x < curves.Count; x++)
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total += ((PieItem)curves[x]).Value;
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// 给Total赋值
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TextObj text = new TextObj("Total 2004 Sales\n" + "$" + total.ToString() + "M",
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0.18F, 0.40F, CoordType.PaneFraction);
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//text的Location设置
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text.Location.AlignH = AlignH.Center;
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text.Location.AlignV = AlignV.Bottom;
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//是否有边框
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text.FontSpec.Border.IsVisible = false;
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//区域的背景色
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text.FontSpec.Fill = new Fill(Color.White, Color.FromArgb(255, 100, 100), 45F);
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text.FontSpec.StringAlignment = StringAlignment.Center;
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myPane.GraphObjList.Add(text);
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// 创建一个阴影区域，看起来有渐变
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TextObj text2 = new TextObj(text);
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//背景色
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text2.FontSpec.Fill = new Fill(Color.Black);
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//text2.Location
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text2.Location.X += 0.008f;
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text2.Location.Y += 0.01f;
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myPane.GraphObjList.Add(text2);
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masterPane.AxisChange(g);
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}
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else if (typesign == "line")
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{
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//设置标题和x,y坐标的文字
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myPane.Title.Text = "Line Graph with Band Demo";
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myPane.XAxis.Title.Text = "Sequence";
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myPane.YAxis.Title.Text = "Temperature, C";
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// 设置初始数据
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double[] y = { 100, 115, 75, 22, 98, 40, 10 };
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double[] y2 = { 90, 100, 95, 35, 80, 35, 35 };
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double[] y3 = { 80, 110, 65, 15, 54, 67, 18 };
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double[] x = { 100, 200, 300, 400, 500, 600, 700 };
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// 填充axis背景颜色和倾斜度
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myPane.Chart.Fill = new Fill( Color.FromArgb( 255, 255, 245), Color.FromArgb( 255, 255, 190), 90F );
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//创建一条红色的线Curve 1
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LineItem myCurve = myPane.AddCurve( "收入", x, y, Color.Red );
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//用红色填充,使符号不透明(可以填充你需要的颜色)
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myCurve.Symbol.Fill = new Fill( Color.Red);
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// 创建一条Blue色的线Curve 2,"Curve2",你可以改变名称
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myCurve = myPane.AddCurve( "成本 ", x, y2, Color.Blue );
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// Make the symbols opaque by filling them with white
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myCurve.Symbol.Fill = new Fill( Color.White );
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// 创建一条Green色的线Curve 3,"Curve3",你可以改变名称
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myCurve = myPane.AddCurve( "时间", x, y3, Color.Green );
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// Make the symbols opaque by filling them with white
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myCurve.Symbol.Fill = new Fill( Color.White );
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//手动设置x axis范围
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myPane.XAxis.Scale.Min = 0;
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myPane.XAxis.Scale.Max = 800;
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// 显示 the Y axis格子线
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myPane.YAxis.MajorGrid.IsVisible = true;
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myPane.YAxis.MinorGrid.IsVisible = true;
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// 显示 the X axis格子线
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// myPane.XAxis.MinorGrid.IsVisible = true;
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// myPane.XAxis.MinorGrid.IsVisible = true;
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//添加一栏加亮显示区域
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//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
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//public BoxObj(double x, double y, double width, double height, Color borderColor, Color fillColor);
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BoxObj box = new BoxObj( 0, 100, 800, 30, Color.Empty,
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Color.FromArgb( 150, Color.LightGreen ) );
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box.Fill = new Fill( Color.White, Color.FromArgb( 200, Color.LightGreen ), 45.0F );
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//使用BehindGrid区域,把加加亮显示区域叠在lines之下
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box.ZOrder = ZOrder.F_BehindGrid;
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myPane.GraphObjList.Add( box );
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//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)
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// public TextObj(string text, double x, double y, CoordType coordType, AlignH alignH, AlignV alignV);
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TextObj text = new TextObj( "基准线", 750, 85, CoordType.AxisXYScale,
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AlignH.Right, AlignV.Center );
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//是否有背景
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text.FontSpec.Fill.IsVisible = false;
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//是否有边框
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text.FontSpec.Border.IsVisible = false;
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//文字是否粗体
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text.FontSpec.IsBold = true;
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//文字是否斜体
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text.FontSpec.IsItalic = true;
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//填充
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myPane.GraphObjList.Add( text );
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}
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//保存位置
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// ZedGraphWeb1.RenderedImagePath = "~/Image/";
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}
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}
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posted @ 2007-08-28 16:44 突破666 阅读(1600) 评论(0) 收藏举报

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小程序、微信公众平台、移动开发、中小企业信息化

using ZedGraph